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Rough Surface
Courtesy of Mr. Daniel Rigler , Budapest University of Technology and Economics
Image Details
Instrument used: Inspect
Magnification: 3000
Voltage: 20 kV
Spot: 5.0
Detector: SE
A new high resolution weather model developed by NOAA’s Earth Systems Research Laboratory in Boulder, Colorado was made operational by the National Weather Service. The High Resolution Rapid Refresh (HRRR) model generates extremely detailed 3-kilometer resolution data for a multitude of 2-D and 3-D variables, each with 15 minute intervals. This spatial and temporal resolution is a great improvement over previous operational models and will be critical for predicting rapidly evolving severe weather.
This image from the September 30, 2014 18z run shows the temperature of the surface. Clearly visible is a cold front moving across the plains that is bringing severe thunderstorms to areas in South Dakota and Nebraska.
Credit: NOAA
Original Link: www.nnvl.noaa.gov/MediaDetail2.php?MediaID=1620&Media...
Sample textile design from 9-week "Exploring Surface Design" course at The Art League School in Alexandria, taught by Julie Booth.
Techniques: salt resist with color wash, foam block print, linoleum block print
Spring 2010
Rapid strata formation in soft sand (field evidence).
Photo of strata formation in soft sand on a beach, created by tidal action of the sea.
Formed in a single, high tidal event. Stunning evidence which displays multiple strata/layers.
Why this is so important ....
It has long been assumed, ever since the 17th century, that layers/strata observed in sedimentary rocks were built up gradually, layer upon layer, over many years. It certainly seemed logical at the time, from just looking at rocks, that lower layers would always be older than the layers above them, i.e. that lower layers were always laid down first followed, in time, by successive layers on top.
This was assumed to be true and became known as the superposition principle.
It was also assumed that a layer comprising a different material from a previous layer, represented a change in environmental conditions/factors.
These changes in composition of layers or strata were considered to represent different, geological eras on a global scale, spanning millions of years. This formed the basis for the Geologic Column, which is used to date rocks and also fossils. The evolutionary, 'fossil record' was based on the vast ages and assumed geological eras of the Geologic Column.
There was also circular reasoning applied with the assumed age of 'index' fossils (based on evolutionary beliefs & preconceptions) used to date strata in the Geologic Column. Dating strata from the assumed age of (index) fossils is known as Biostratigraphy.
We now know that, although these assumptions seemed logical, they are not supported by the evidence.
At the time, the mechanics of stratification were not properly known or studied.
An additional factor was that this assumed superposition and uniformitarian model became essential, with the wide acceptance of Darwinism, for the long ages required for progressive microbes-to-human evolution. There was no incentive to question or challenge the superposition, uniformitarian model, because the presumed, fossil 'record' had become dependant on it, and any change in the accepted model would present devastating implications for Darwinism.
This had the unfortunate effect of linking the study of geology so closely to Darwinism, that any study independent of Darwinian considerations was effectively stymied. This link of geology with Darwinian preconceptions is known as biostratigraphy.
Some other field evidence, in various situations, can be observed here: www.flickr.com/photos/101536517@N06/sets/72157635944904973/
and also in the links to stunning, experimental evidence, carried out by sedimentologists, given later.
_______________________________________________
GEOLOGIC PRINCIPLES (established by Nicholas Steno in the 17th Century):
What Nicolas Steno believed about strata formation is the basis of the principle of Superposition and the principle of Original Horizontality.
dictionary.sensagent.com/Law_of_superposition/en-en/
“Assuming that all rocks and minerals had once been fluid, Nicolas Steno reasoned that rock strata were formed when particles in a fluid such as water fell to the bottom. This process would leave horizontal layers. Thus Steno's principle of original horizontality states that rock layers form in the horizontal position, and any deviations from this horizontal position are due to the rocks being disturbed later.”)
BEDDING PLANES.
'Bedding plane' describes the surface in between each stratum which are formed during sediment deposition.
science.jrank.org/pages/6533/Strata.html
“Strata form during sediment deposition, that is, the laying down of sediment. Meanwhile, if a change in current speed or sediment grain size occurs or perhaps the sediment supply is cut off, a bedding plane forms. Bedding planes are surfaces that separate one stratum from another. Bedding planes can also form when the upper part of a sediment layer is eroded away before the next episode of deposition. Strata separated by a bedding plane may have different grain sizes, grain compositions, or colours. Sometimes these other traits are better indicators of stratification as bedding planes may be very subtle.”
______________________________________________
Several catastrophic events, flash floods, volcanic eruptions etc. have forced Darwinian, influenced geologists to admit to rapid stratification in some instances. However they claim it is a rare phenomenon, which they have known about for many years, and which does nothing to invalidate the Geologic Column, the fossil record, evolutionary timescale, or any of the old assumptions regarding strata formation, sedimentation and the superposition principle. They fail to face up to the fact that rapid stratification is not an extraordinary phenonemon, but rather the prevailing and normal mechanism of sedimentary deposition whenever and wherever there is moving, sediment-laden water. The experimental evidence demonstrates the mechanism and a mass of field evidence in normal (non-catastrophic) conditions shows it is a normal everyday occurrence.
It is clear from the experimental evidence that the usual process of stratification is - that strata are not formed by horizontal layers being laid on top of each other in succession, as was assumed. But by sediment being sorted in the flowing water and laid down diagonally in the direction of flow. See diagram:
www.flickr.com/photos/truth-in-science/39821536092/in/dat...
The field evidence (in the image) presented here - of rapid, simultaneous stratification refutes the Superposition Principle and the Principle of Lateral Continuity.
We now know, the Superposition Principle only applies on a rare occasion where sedimentary deposits are laid down in still water.
Superposition is required for the long evolutionary timescale, but the evidence shows it is not the general rule, as was once believed. Most sediment is laid down in moving water, where particle segregation is the general rule, resulting in the simultaneous deposition of strata/layers as shown in the photo.
See many other examples of rapid stratification (with geological features): www.flickr.com/photos/101536517@N06/sets/72157635944904973/
Rapid, simultaneous formation of layers/strata, through particle segregation in moving water, is so easily created it has even been described by sedimentologists (working on flume experiments) as a law ...
"Upon filling the tank with water and pouring in sediments, we immediately saw what was to become the rule: The sediments sorted themselves out in very clear layers. This became so common that by the end of two weeks, we jokingly referred to Andrew's law as "It's difficult not to make layers," and Clark's law as "It's easy to make layers." Later on, I proposed the "law" that liquefaction destroys layers, as much to my surprise as that was." Ian Juby, www.ianjuby.org/sedimentation/
The example in the photo is the result of normal, everyday tidal action formed in a single incident, and subsequently eroded by water flow revealing the strata/layers.
Where the water current or movement is more turbulent, violent, or catastrophic, great depths (many metres) of stratified sediment can be laid down in a short time. Certainly not the many millions of years assumed by evolutionists.
The composition of strata formed in any deposition event. is related to whatever materials are in the sediment mix, not to any particular timescale. Whatever is in the mix will be automatically sorted into strata/layers. It could be sand, or other material added from mud slides, erosion of chalk deposits, coastal erosion, volcanic ash etc. Any organic material (potential fossils), alive or dead, engulfed by, or swept into, a turbulent sediment mix, will also be sorted and buried within the rapidly, forming layers.
See many other examples of rapid stratification with geological features: www.flickr.com/photos/101536517@N06/sets/72157635944904973/
Stratified, soft sand deposit. demonstrates the rapid, stratification principle.
Important, field evidence which supports the work of the eminent, sedimentologist Dr Guy Berthault MIAS - Member of the International Association of Sedimentologists.
(Dr Berthault's experiments (www.sedimentology.fr/)
And also the experimental work of Dr M.E. Clark (Professor Emeritus, U of Illinois @ Urbana), Andrew Rodenbeck and Dr. Henry Voss, (www.ianjuby.org/sedimentation/)
Location: Yaverland, Isle of Wight. Photographed 12/10/2018 This field evidence demonstrates that multiple strata in sedimentary deposits do not need millions of years to form and can be formed rapidly. This natural example confirms the principle demonstrated by the sedimentation experiments carried out by Dr Guy Berthault and other sedimentologists. It calls into question the standard, multi-million year dating of sedimentary rocks, and the dating of fossils by depth of burial or position in the strata.
Mulltiple strata/layers are evident in this example.
Dr Berthault's experiments (www.sedimentology.fr/) and other experiments (www.ianjuby.org/sedimentation/) and field studies of floods and volcanic action show that, rather than being formed by gradual, slow deposition of sucessive layers superimposed upon previous layers, with the strata or layers representing a particular timescale, particle segregation in moving water or airborne particles can form strata or layers very quickly, frequently, in a single event.
And, most importantly, lower strata are not older than upper strata, they are the same age, having been created in the same sedimentary episode.
Such field studies confirm experiments which have shown that there is no longer any reason to conclude that strata/layers in sedimentary rocks relate to different geological eras and/or a multi-million year timescale. www.youtube.com/watch?v=5PVnBaqqQw8&feature=share&.... they also show that the relative position of fossils in rocks is not indicative of an order of evolutionary succession. Obviously, the uniformitarian principle, on which the geologic column is based, can no longer be considered valid. And the multi-million, year dating of sedimentary rocks and fossils needs to be reassessed. Rapid deposition of stratified sediments also explains the enigma of polystrate fossils, i.e. large fossils that intersect several strata. In some cases, tree trunk fossils are found which intersect the strata of sedimentary rock up to forty feet in depth. upload.wikimedia.org/wikipedia/commons/thumb/0/08/Lycopsi... They must have been buried in stratified sediment in a short time (certainly not millions, thousands, or even hundreds of years), or they would have rotted away. youtu.be/vnzHU9VsliQ
In fact, the vast majority of fossils are found in good, intact condition, which is testament to their rapid burial. You don't get good fossils from gradual burial, because they would be damaged or destroyed by decay, predation or erosion. The existence of so many fossils in sedimentary rock on a global scale is stunning evidence for the rapid depostion of sedimentary rock as the general rule. It is obvious that all rock containing good intact fossils was formed from sediment laid down in a very short time, not millions, or even thousands of years.
See set of photos of other examples of rapid stratification: www.flickr.com/photos/101536517@N06/sets/72157635944904973/
Carbon dating of coal should not be possible if it is millions of years old, yet significant amounts of Carbon 14 have been detected in coal and other fossil material, which indicates that it is less than 50,000 years old. www.ldolphin.org/sewell/c14dating.html
www.grisda.org/origins/51006.htm
Evolutionists confidently cite multi-million year ages for rocks and fossils, but what most people don't realise is that no one actually knows the age of sedimentary rocks or the fossils found within them. So how are evolutionists so sure of the ages they so confidently quote? The astonishing thing is they aren't. Sedimentary rocks cannot be dated by radiometric methods*, and fossils can only be dated to less than 50,000 years with Carbon 14 dating. The method evolutionists use is based entirely on assumptions. Unbelievably, fossils are dated by the assumed age of rocks, and rocks are dated by the assumed age of fossils, that's right ... it is known as circular reasoning.
* Regarding the radiometric dating of igneous rocks, which is claimed to be relevant to the dating of sedimentary rocks, in an occasional instance there is an igneous intrusion associated with a sedimentary deposit -
Prof. Aubouin says in his Précis de Géologie: "Each radioactive element disintegrates in a characteristic and constant manner, which depends neither on the physical state (no variation with pressure or temperature or any other external constraint) nor on the chemical state (identical for an oxide or a phosphate)."
"Rocks form when magma crystallizes. Crystallisation depends on pressure and temperature, from which radioactivity is independent. So, there is no relationship between radioactivity and crystallisation.
Consequently, radioactivity doesn't date the formation of rocks. Moreover, daughter elements contained in rocks result mainly from radioactivity in magma where gravity separates the heavier parent element, from the lighter daughter element. Thus radiometric dating has no chronological signification." Dr. Guy Berthault www.sciencevsevolution.org/Berthault.htm
Rapid strata formation and rapid erosion at Mount St Helens.
slideplayer.com/slide/5703217/18/images/28/Rapid+Strata+F...
Visit the fossil museum:
www.flickr.com/photos/101536517@N06/sets/72157641367196613/
Just how good are peer reviews of scientific papers?
www.sciencemag.org/content/342/6154/60.full
www.examiner.com/article/want-to-publish-science-paper-ju...
The neo-Darwinian idea that the human genome consists entirely of an accumulation of billions of mutations is, quite obviously, completely bonkers. Nevertheless, it is compulsorily taught in schools and universities as 'science'.
Rainy day is the perfect time for photography. Not only is the contrast relatively low, the reflective surface on the floor adds interests to almost all compositions.
The faces are cropped off here to hide the athletes’ identities, but the essence of their playing is all there.
This is, as usual, a photograph by requests by some of my social media friends in Europe—specifically they asked to see photographs of Chinese men playing all kinds of random sports. Your wish is my command.
# SML Data
+ Date: 2013-03-31T15:45:34.66+0800
+ Dimensions: 4601 x 3067
+ Exposure: 1/320 sec at f/5.6
+ Focal Length: 196 mm
+ ISO: 1000
+ Flash: Did not fire
+ Camera: Canon EOS 7D
+ Lens: Canon EF 70-200mm f/4L USM + Canon EF 1.4x Extender III
+ GPS: 22°25'10" N 114°13'38" E
+ Location: 中國香港馬鞍山遊樂場硬地足球場 国香港马鞍山游乐场硬地足球场 Hard-Surface Soccer Pitch, Ma On Shan Recreation Ground, Ma On Shan, Hong Kong, China
+ Serial: SML.20130331.7D.37321
+ Workflow: Lightroom 4
+ Series: 體育 Sports, 男 Men
# Media Licensing
Creative Commons (CCBY) See-ming Lee 李思明 / SML Photography / SML Universe Limited
“雨天踢足球 Football (Soccer) on a rainy day” / 男運動員 Men in Sports / SML.20130331.7D.37321
/ #體育 #体育 #Sports #男 #Men #SMLMen #CCBY #SMLPhotography #SMLUniverse #SMLProjects
/ #中國 #中国 #China #香港 #HongKong #攝影 #摄影 #photography #城市 #Urban #足球 #Football #Soccer #雨 #rain #reflection
SEPTA-Surface all-electric PCC 2796 (St Louis 1947) still in PTC green & cream @ 40th & Woodland. 8-20-80
This photo appeared in the following ideotrope albums:
Biking the Mojave Fall 2007 - Introduction
I biked through Death Valley in October 1996. It was 109°F at Furnace Creek. The area is beautiful, but it was way too hot at that time of year. I knew I wanted to come back on my bicycle when it was cooler. This year it worked out to take about 3 weeks after Thanksgiving. I ended up spending 18 days to cycle from Palm Springs to Las Vegas. I spent about half of that time in Death Valley NP. In Baker I met a group of cyclists on racing bikes with a support vehicle. They were cycling from Palm Springs to Las Vegas in 2 days. I saw a lot more desert than they did.
Coachella Valley and Joshua Tree National Park
I crossed the Coachella Valley on Ramon Rd. It was over 70°F, probably the warmest day of the trip. It wasn't 'til I turned onto Thousand Palms Rd. that I felt like I was heading out into the desert on my own. The San Andreas Fault system runs along the northern end of the Coachella Valley. The faults allow groundwater to rise to the surface resulting in a number of California fan palm oases. It's wonderful to see oases in the desert.
It was a 1300m climb on Berdoo Canyon Rd. to the Coachella Valley-Pleasant Valley saddle in Joshua Tree NP. I didn't see a single person or vehicle in Berdoo Canyon. Climbing out of Pleasant Valley I saw the first person, a fellow adventurer. Patrick was walking solo across Joshua Tree NP from west to east. That's a heck of a trek. That park is huge and has only one known spring. Patrick had set up two water caches before his trip.
Amboy Road and Mojave National Preserve
I bought enough food in 29 Palms to last 4 days to Baker. Heading east on the Amboy Rd. I met the only other touring cyclist of the trip. He had come down from Bishop through Death Valley NP, Baker, Kelso, Amboy - much the same route I was planning to take. When I met him, he had run out of food. I shared some almonds with him but didn't have much sympathy with his plight. The reason he didn't buy food in Baker was because there wasn't a health food store! Well, I told him there was a grocery store in 29 Palms, but it might not be up to his standard.
One of the things I was looking forward to on this trip was experiencing the transition zone between the Sonoran Desert (lower, farther south) and the Mojave Desert (higher, farther north). Creosote bushes grow in both, but most other flora is limited to one ecosystem or the other. In the transition zones you can see a mix of vegetation. What I saw ended up being less dramatic than Washington County, Utah where the Colorado Plateau, the Basin and Range country, and the Mojave Desert all come together. Joshua Trees were the main ecosystem indicator for me. I knew I was climbing high when I started to see them.
I was surprised how much traffic there was on the Amboy Rd. It wasn't much, but a lot of the paved roads that I was on during the trip would have one car every 10-30 minutes and perhaps none all night. The only truly busy roads were the road north out of Baker (on a Saturday morning) and the Pahrump-Las Vegas superhighway which has a wonderful bicycle lane.
I climbed Sheep Hole Pass to get into the Amboy Valley. It was in the Amboy Valley where I became accustomed two aspects important to cyclists in the Mojave:
Distances are deceiving. You can see really far. It takes much longer to cross these valleys that it appears that it would.
The slight inclines up alluvial fans or other fill climb a lot more than they appear to. In Colorado I'm not accustomed to seeing the whole climb since there are usually canyon climbs here. Leaving Amboy, for example, I climbed over 3000 ft. on a slowly rising alluvial plane. It took hours.
I enjoyed time off the bike to walk out to and up Amboy Crater. The following day I climbed to the top of the Kelso Dunes. And one day later I climbed one of the cinder cones east of Baker. I enjoyed having a diversion each day. Each of those areas is beautiful in its own way. The creosote bushes in the Amboy Valley are particularly green because of the shallow water table. Kelso Dunes are simply fantastic, and the cinder cone area with over 30 cinder cones and not another person felt like another planet.
In Baker I bought enough food to last 10 days and ate at the Mad Greek at my brother's recommendation. I had taken a rest day the previous day because of rain, and Baker was a bit flooded. Folks were out pushing water around with brooms. At the store the locals were telling each other how much their roofs leaked.
Death Valley National Park
Heading north of Baker the saddle that separates the Silurian Valley from Death Valley is only about a 50' climb. From there I left the pavement and stopped at Saratoga Springs to see the incredible wetlands in the desert. I had planned on climbing the Ibex Dunes, but wind was blowing sand off the top of the dunes and everything was still a bit wet from the rain. The following day I reached the pavement, took it for 5 miles and then headed west up Warm Springs Canyon.
The 1400m climb up Warm Springs Canyon was not the longest of the trip, but it was the toughest. The climb started out hard from below sea level in Death Valley and continued to be hard all the way to the saddle leading into Butte Valley. I struggled in my easiest gear (which is really low) the whole way. Surprisingly I walked very little. It always seemed to be just slightly easier to pedal than to walk.
Butte Valley felt remote. The views to the east were phenomenal giving Greater View Spring its name. I could see range after range. I stopped at Stella Anderson's place and cut some chicken wire to repair my glasses. The rattling had loosened a screw which I couldn't find. It was important to get a good fix since I wore those glasses a lot riding in the early morning and late afternoon. I found I had about 10 hours of light to ride in with perhaps 45 minutes of twilight on either end to mess around in camp. The sun was theoretically up for 8 or 9 hours, but it was often a lot less than that in the canyons. My repair job worked well, and I didn't even strip the threads so the glasses are good as new again :)
Mengel Pass is rough and keeps too many people from taking this route between Death Valley and Panamint Valley. Down in Goler Wash I met Rock(y), one of two residents of Ballarat. His father is the other. Rocky was poking around Goler Wash with his girlfriend who was visiting from LA. He had worked with various mining operations in the area, and I enjoyed his stories. It was also fun to talk with his Isreali girlfriend. We compared this desert with the eastern Mediterranean desert where I have also cycled.
In Ballarat the following day I talked with Rocky some more, but the girlfriend had already returned to LA. There are a surprising number of springs on the west side of the Panamints (due to faults, I'm sure) and a surprising number of fighter jets playing overhead. I scared a coyote into some bushes near a spring and then was scared myself by the jet passing just overhead. Once the quiet returned I could hear the coyotes, packs of them, howling and yipping in the bushes. The yipping made it sound like there were a lot of youngsters. Fun to hear the bushes make such unusual noises.
Hunter Mountain to Racetrack Playa
I was pretty tired this day and finally made it to Panamint Springs where I had planned to get water. There's a store as well, but they really only have candy bars. The restaurant, however, was able to sell me some bread and cheese. I bought a veggie burger for lunch as well. That rejuvenated me enough to climb about half of the 1100m paved climb that afternoon.
I was lucky that the following day was stunningly warm since I climbed to over 7000 ft. The 1100m paved climb was followed by 600m of climbing on a dirt road. I'm sure it ended up being more than that since there were a number of descents thrown in as well. To give an idea of the terrain the only two flat places I went through that day were named: Lee Flat and Ulida Flat! Lee Flat was filled with the most Joshua trees I've ever seen in one place. I camped in Ulida Flat next to one of the only Joshua trees out there.
I made it over Hunter Mountain, through Hidden Valley, down Lost Burro Gap, and arrived at Teakettle Junction with enough water to be able to make the ~16 mile detour to Racetrack Playa. Of course I'd seen photos of the moving rocks at Racetrack Playa, but I was absolutely blown away being at the site in person. It's not simply the amazement of seeing the evidence of the moving rocks and all the different directions and shapes of the tracks, but also how well preserved the area is. It wouldn't take too many people moving rocks from the tracks, driving on the playa, or walking out there when the surface is wet to really ruin the magic of the place. Additionally Racetrack Playa is so big and so flat. The flat playa blends in in the distance with the hills miles away. I loved this place. I was lucky enough to be there when I was. The rain from 5 days earlier had completely dried out, and it rained some more just 10 hours after I was there.
I recovered my stashed gear and water at Teakettle Junction and headed uphill into a cold, stiff wind climbing out of Racetrack Valley. By this point in the trip I had started to associate Joshua trees with cold weather. At the saddle in the twilight I made it my goal to descend far enough down to get away from the Joshua trees and perhaps into warmer weather. It was practically dark by the time I got off my bike, but I succeeded! It sprinkled off and on all night, but I was dry and fairly warm.
Through the bottom of Death Valley
The downhill continued all the way to the pavement at Ubehebe Crater, but I had to push the bike a bit once I got to the lava/cinder area. The black sand of the roadbed was much finer and deeper than the surface of most of the descent. Getting to Ubehebe concluded what I had planned for this trip. The only thing left was to get to Las Vegas. Berdoo Canyon, Mengel Pass, and Hunter Mountain had all been hard excursions, but each took about a day less than I had (conservatively) expected. I had time to make it a pleasant, easy ride to Vegas. I hiked around Ubehebe Crater and relaxed in the wind at the parking lot. Only two cars plus a ranger came by during the ~3 hours I was there. Each car stopped, the occupants got out, took a couple photos, and were driving away less than 2 minutes later. Incredible! This place is the middle of nowhere. I couldn't understand why anyone would drive so far and spend so little time. It turns out though that Ubehebe is only a 10 mile detour from the Scotty's Castle road.
I didn't make much distance this day even though it was flat and I had a tailwind after Ubehebe. I camped illegally near the paved road but was careful to avoid washes since I could tell it was going to storm. Storm it did. The wind bent my tent sideways, and rain poured down for hours. Death Valley received about a third of their annual average rainfall in this ~6 hour period. It was December 7, and it rained almost as much as it had from January 1 to December 6. The nice flat sandy spot I had chosen for my tent was just a bit lower than the surrounding area. The whole area was really quite flat, but the soil there can't absorb water very quickly. In the middle of the night I found my tent sitting in an inch or so of water. Only my thermarest was above it. I moved the tent in the pouring rain, but it was too late. Most of my stuff was pretty wet. Both pairs of socks and the bottom of my down bag were soaked. I wrapped my feet in a wool scarf like a Ace bandage and tried to get some sleep.
I was up early in the morning. I had managed to keep my down coat fairly dry so I put that over my damp clothes to ride away in the morning. Tons of rocks up to the size of softballs had poured across the 2-lane paved highway out of washes that were only a foot or two wide. It had snowed down to 4000'. In every direction were snow-covered peaks. I was so lucky to be down low, near pavement. The dirt roads that I had spent much of the last week on were probably impassable that morning. Ulida Flat where I had camped two nights earlier was probably covered in snow. I was able to keep warm biking in my down coat, but I was down at sea level, the warmest place around!
The sun came out. Everything warmed up. The views were phenomenal. In spite of the damp clothes it was a fantastic day to be cycling. At Furnace Creek I was directed to the sunny employee picnic area where I pulled everything out of my bags and dried everything out while enjoying lunch and wine from the grocery store. I hung out there for 2-3 hours before anyone else showed up. It was Herb, the night maintenance man. Enthralled with the bike he asked lots of questions about touring and the LHT specifically. He kept getting calls on his radio but continued to talk with me. Herb plans to live on his bike for a while and had been researching bicycles. I enthusiastically encouraged him since I know from experience that a lot of folks discourage that kind of crazy plan. Before he left to finally answer one of his calls, he asked me, "did you find the free showers?" I hadn't. Hohoho, that shower felt wonderful.
I spent a rest day at Furnace Creek and talked to Herb to 2 or 3 more times. I also met Mary and Paul from Rogue River, Oregon, who invited me to dinner at their campsite. I didn't carry a stove on this trip. The hot meal that Mary put together was the best meal of the trip. She had dried tomatoes and zucchini from their garden, a hot sauce with peppers that they grew, a jalepeno artichoke dip as an appetizer, and plenty of red wine. Was I ever a happy camper!
And on to Las Vegas
Back on the bike I rode south with a tailwind past Badwater all the way to the 5 miles of paved road that I had ridden between Saratoga Springs and Warm Springs Canyon over a week earlier. Instead of heading south to Baker I climbed Jubilee Pass. The following day I climbed Salsberry Pass on the coldest day of the trip. I simply couldn't warm up since I couldn't get away from the wind. And then I came to Tecopa Hot Springs! That cut the chill even though the wind was so fierce that I was dry within minutes of getting out of the pool. Around the corner I stopped at a RV park to get some water and ended up spending an hour talking with the 75-year-old man who runs the place with his wife. He ran an ultra-marathon when he was 55, had biked from Las Vegas to Sedona, had run a bunch of marathons. In the summer they leave Tecopa Hot Springs and explore the country in their 35' motorhome.
Later that afternoon I came upon Victor. Stopped at the side of the road, he handed me a Guinness and two granola bars. We chatted for a while using his car as a windbreak. He's taking a break from his 'round the world bicycle trip on a crazy rig that he built himself.
The following morning the only indication that I entered Nevada was a sign reading "Inyo County Line". Lower down on the same post was a smaller sign at an angle because it was falling off. That sign said "leaving". About 3 cars passed me in an hour, and then a car stopped. It was the couple from RV park in Tecopa Hot Springs. She had baked muffins that morning, put together a package of them for me, and handed them to me! They were still warm! Oh, I was cycling with a big smile yet again! I was on a gradual climb that continued all the way to Mountain Springs Pass. To get an idea of how long the climb was, consider that the couple drove all the way to Las Vegas, went to the dentist, drove back, and passed me just one minute before I crested the pass. They honked, smiled, and waved as did I. The first 2000' of descent was fast and cold, but I was warm and happy in my down coat.
My last excursion before Las Vegas was to ride through the scenic Red Rock Canyon National Conservation Area. The cliffs and cemented sand dunes in that area reminded me much more of the Colorado Plateau than anything I'd seen on my journey through the Mojave Desert. In the morning I rolled into Vegas, found a bike shop, boxed my stuff, and took a taxi to the downtown Greyhound station. In Denver a day later I rebuilt my bike at the Greyhound station for the short ride to Market St. Station. I took the bus to Boulder and rode through the snow to get home.
This VIS image shows several dark streaks near the summit of Alba Mons. Similar large, dark streaks are found on all the Tharsis volcanoes. This type of dark streak does not form due to surface winds flowing around topographic features like craters. Instead these streaks seem to form from in response to large slope winds blowing over the volcano. Such winds are called orographic winds, and are caused by air mass movement around mountains.
This martian scene spans 19 x 283 kilometers (12 x 176 miles). To see where on Mars this area lies, and to download high-resolution versions of the image go to themis.asu.edu/zoom-20230428a
See the Red Planet Report at redplanet.asu.edu for updates on Mars research and exploration. For more about Mars geology, check out the Mars-ePedia: marsed.asu.edu/marsepedia
For the latest THEMIS Mars images as received by mission scientists, see themis.asu.edu/livefrommars. To learn more about the THEMIS camera and its Mars images, see themis.asu.edu
This image is in the public domain and may be republished free of charge. If used, please credit it as NASA/JPL-Caltech/Arizona State University.
via Outdoor Surface Painting outdoorsurfacepainting.tumblr.com/post/145008071256
Outdoor Surface Painting in Cilcennin | Anti Slip Paint #Cilcennin t.co/EBQ52vVY2z
www.youtube.com/watch?v=hOBn-g5VTfM
This is an obscure little British sci-fi, from producers who did everything but sci-fi before (or after). This might explain why Devil Girl from Mars (DGfM) is such a departure from the usual sci-fi formulae. On the surface of things, DGfM is akin to the usual saucer-alien-invasion motif. That kinship is only skin deep, though. Beneath the surface is a delightfully different movie.
Synopsis
Reports come in of a strange meteor landing the remote area of Scotland. A professor of astrophysics and a newspaper reporter are traveling up from London to find it. They stop for the night at a country inn. Meanwhile, a man who escaped from prison has snuck into the inn to seek help from his girlfriend who works there. Also staying at the inn is a fashion model hiding/sulking from a failed romance, and a young boy, the nephew of the man and woman who run the inn. With a grand flash, a flying saucer lands dramatically near the inn. Inside is Nyah, a tall shapely woman dressed in black leather, a black leather skull cap and long black leather cape. She announces that she's from Mars. The male population has grown weak and feeble on Mars, so they are looking for breeding stock. She's the first of what will be a wave of invaders taking the best men, now her trip has proven the success of "organic metal" ships. The people are powerless to stop her. She cannot be shot or electrocuted. Nyah has a force field around the inn, so no one can escape or get help. Nyah has a big robot which can disintegrate things with his head-beam, so resistance is futile. The professor does some recon aboard the ship. He feels the ship's power source is its achilles heel. The men draw straws to see who will go with Nyah -- essentially a suicide mission to destroy her ship. While they argue, the convict tells Nyah that he's the one. Her ship leaves and blows up high in the sky. The earth is safe. The end.
Sure, it's low on action and very talky. It was adapted from a stage play, after all. But there's just so many little touches in DGfM that are delightful. One thing is the total reversal of the usual they're-after-our-women trope. This is so refreshing. What makes this even more fun is that the men do not act all wolfish and slobbery about being a stud for martian women. Instead, they act like it's exile to Siberian salt mines. This, despite Nyah being a hot chick in her own way. Hollywood could not have done this story. Another very fun visual is Nayh herself, all in black with Vulcan-like eyebrows and stoic demeanor. She's like Spock's evil sister or Darth Vadar's wife. This is just great fun for viewing. The model work and matte art are pretty good for a low-budget B-film.
As mentioned above, DGfM reverses the usual alien agenda. Instead of the ruthless alien trying to take away our curvaceous ladies, a leggy lady arrives to take away earth's hunkiest men.
This isn't treated like the usual adolescent fantasy about being the lone guy in the girls' dorm. No, the men at the Bonnie Charlie Inn regard Nyah's plan as a terrible fate. Perhaps the Brits were able to see beyond their underpants that the martian women's plans would mean the subjugation of the entire earth. There was much more at stake than their own personal gratification. How un-Hollywood!
The writer sets up an interesting contrast between earthly love and the martian woman's buisness-like approach to procreation. Between Robert, the convict and Doris, we see her loyalty and charity. Robert shows a sort of desperate reaching out for help, but then the willingness to sacrifice himself for others. Between the reporter, Michael, and Miss Prestwick, the budding of new romance which softens his cynicism and coaxes her out of her funk over a failed prior romance. Mr. and Mrs. Jamison show parent-like concern of little Tommy. The Professor shows an altruism for mankind. All these earthly manifestations of love stand in contrast to Nyah's passionless approach to duty.
DGfM features a little thing that gets attention in films much later. Her ship is made of "organic metal" which can heal itself. She miscalculated the density of earth's atmosphere, so upon entry a part of her ship broke off. That was the meteor people reported. Nyah had to land in Scotland instead of London, as originally planned, so that her ship could heal itself. In the meantime, she figures to take the best of the men at the inn, just to make the side trip worthwhile. We won't see the concept of organic metal and ships healing themselves until the Alien series in the 90s. Stargate Atlantis has it's Wraith ships which are partially organic too. DGfM might be the first film to feature self-healing ships.
The robot in DGfM is tall, but like many other B-movie robots, it's so slow and clumsy it's hard imagine it inspiring fear. Oh sure, it has its disintegrator beam, but it's even slower than a muzzle-loading musket to fire. Instead of running away (or even just walking away) from it, everyone stands "paralyzed" in fear while the walking refrigerator lumbers up to them. This is necessary, of course, since it's a sound-stage production, not an action film, but it looks a little odd. They could have tackled Nayh and taken away her remote control before robo-fridge could manage turning around. Perhaps in the early 50s the concept of killer robots were more frightening.
Many B-films end on a supposedly happy note when the lone alien is killed, as if there was no other threats out there. DGfM might look like one of these loose-thread flicks, but it's not. Nyah's ship was THE experimental prototype of the organic metal ship. Only such a ship could make the trip from Mars and hold up to our harsh Earth conditions. She said that when she returns to Mars, it will prove the success of the organic metal and a whole fleet of ship will be built like hers. By Robert blowing up her ship, the Martians will assume the organic metal ship was a failure and not re-try Nayh's organic metal approach. This buys Earth much needed time. All this assumes Nayh had no radio chats with Mars once she got here. A naive assumption.
Bottom line? Devil Girl is certainly worth watching, not for the effects or action, but just for the sheer role-reversal aspect.
ID: 003671
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Septa-Surface all-electric PCC 2798 (St Louis 1947) exits surface car subway @ 40th & Woodland 8-20-80 on Route 13 YEADON.
Postwar PCC's like 2798 had electric braking (hence all-electric label, standee windows (except on double-enders and cars purchased by Kansas City), and had windshields at creater angle than on prewar cars. This car was originally built with a conductor's booth for two-man operation but had been converted by time of photo.
Relief, or relievo rilievo, is a sculptural technique. The term relief is from the Latin verb relevo, to raise. To create a sculpture in relief is to give the impression that the sculpted material has been raised above the background plane. What is actually performed when a relief is cut in from a flat surface of stone (relief sculpture) or wood (relief carving) is a lowering of the field, leaving the unsculpted parts seemingly raised. The technique involves considerable chiselling away of the background, which is a time-consuming exercise. On the other hand, a relief saves forming the rear of a subject, and is less fragile and more securely fixed than a sculpture in the round, especially one of a standing figure where the ankles are a potential weak point, especially in stone. In other materials such as metal, clay, plaster stucco, ceramics or papier-mache the form can be just added to or raised up from the background, and monumental bronze reliefs are made by casting. There are different degrees of relief depending on the degree of projection of the sculpted form from the field, for which the Italian appellations are still sometimes used. The full range includes high relief (alto-rilievo), where more than 50% of the depth is shown and there may be undercut areas, mid-relief (mezzo-rilievo), low-relief (basso-rilievo, or French: bas-relief /ˌbɑːrɪˈliːf/), and shallow-relief or rilievo schiacciato, where the plane is scarcely more than scratched in order to remove background material. There is also sunk relief, which was mainly restricted to Ancient Egypt. However the distinction between high relief and low relief is the clearest and most important, and these two are generally the only terms used to discuss most work. The definition of these terms is somewhat variable, and many works combine areas in more than one of them, sometimes sliding between them in a single figure; accordingly some writers prefer to avoid all distinctions. The opposite of relief sculpture is counter-relief, intaglio, or cavo-rilievo, where the form is cut into the field or background rather than rising from it; this is very rare in monumental sculpture.
Reliefs are common throughout the world on the walls of buildings and a variety of smaller settings, and a sequence of several panels or sections of relief may represent an extended narrative. Relief is more suitable for depicting complicated subjects with many figures and very active poses, such as battles, than free-standing "sculpture in the round". Most ancient architectural reliefs were originally painted, which helped to define forms in low relief. The subject of reliefs is for convenient reference assumed in this article to be usually figures, but sculpture in relief often depicts decorative geometrical or foliage patterns, as in the arabesques of Islamic art, and may be of any subject.
Rock reliefs are those carved into solid rock in the open air (if inside caves, whether natural or man-made, they are more likely to be called "rock-cut"). This type is found in many cultures, in particular those of the Ancient Near East and Buddhist countries. A stela is a single standing stone; many of these carry reliefs.
TYPES
The distinction between high and low relief is somewhat subjective, and the two are very often combined in a single work. In particular, most later "high reliefs" contain sections in low relief, usually in the background. From the Parthenon Frieze onwards, many single figures have heads in high relief, but their lower legs are in low relief; the slightly projecting figures created in this way work well in reliefs that are seen from below (see Moissac portal in gallery). As unfinished examples from various periods show, raised reliefs, whether high or low, were normally "blocked out" by marking the outline of the figure and reducing the background areas to the new background level, work no doubt performed by apprentices (see gallery). Hyphens may or may not be used in all these terms, though they are rarely seen in "sunk relief" and are usual in "bas-relief" and "counter-relief". Works in the technique are described as "in relief", and, especially in monumental sculpture, the work itself is "a relief".
BAS RELIEF OR LOW RELIEF
A bas-relief ("low relief", from the Italian basso rilievo) or low relief is a projecting image with a shallow overall depth, for example used on coins, on which all images are in low relief. In the lowest reliefs the relative depth of the elements shown is completely distorted, and if seen from the side the image makes no sense, but from the front the small variations in depth register as a three-dimensional image. Other versions distort depth much less. It is a technique which requires less work, and is therefore cheaper to produce, as less of the background needs to be removed in a carving, or less modelling is required. In the art of Ancient Egypt and other ancient Near Eastern and Asian cultures, and also Meso-America, a very low relief was commonly used for the whole composition. These images would all be painted after carving, which helped to define the forms; today the paint has worn off in the great majority of surviving examples, but minute, invisible remains of paint can usually be discovered through chemical means.
The Ishtar Gate of Babylon, now in Berlin, has low reliefs of large animals formed from moulded bricks, glazed in colour. Plaster was sometimes used in Egypt and Rome, and probably elsewhere, but needs very good conditions to survive – Roman decorative plasterwork is mainly known from Pompeii and other sites buried by ash from Mount Vesuvius. Low relief was relatively rare in Western medieval art, but may be found, for example in wooden figures or scenes on the insides of the folding wings of multi-panel altarpieces.
Low relief is probably the most common type of relief found in Hindu-Buddhist arts of India and Southeast Asia. The low reliefs of 2nd-century BCE to 6th-century CE Ajanta Caves and 5th to 10th-century Ellora Caves in India are noted for they were carved out from rock-cut hill. They are probably the most exquisite examples of Buddhist, Hindu, and Jain arts in India. Most of these low reliefs are used in narrating sacred scriptures, such as those founds in 9th century Borobudur temple in Central Java, Indonesia, that narrating The birth of Buddha (Lalitavistara). Borobudur itself possess 1,460 panels of narrating low reliefs. Another example is low reliefs narrating Ramayana Hindu epic in Prambanan temple, also in Java. In Cambodia, the temples of Angkor are also remarkable for their collection of low reliefs. The Samudra manthan or "Churning of Ocean of Milk" of 12th-century Angkor Wat is an example of Khmer art. Another examples are low reliefs of Apsaras adorned the walls and pillars of Angkorian temples. The low reliefs of Bayon temple in Angkor Thom also remarkable on capturing the daily life of Khmer Empire.
The revival of low relief, which was seen as a classical style, begins early in the Renaissance; the Tempio Malatestiano in Rimini, a pioneering classicist building, designed by Leon Battista Alberti around 1450, uses low reliefs by Agostino di Duccio inside and on the external walls. Since the Renaissance plaster has been very widely used for indoor ornamental work such as cornices and ceilings, but in the 16th century it was used for large figures (many also using high relief) at the Chateau of Fontainebleau, which were imitated more crudely elsewhere, for example in the Elizabethan Hardwick Hall.
In later Western art, until a 20th-century revival, low relief was used mostly for smaller works or combined with higher relief to convey a sense of distance, or to give depth to the composition, especially for scenes with many figures and a landscape or architectural background, in the same way that lighter colours are used for the same purpose in painting. Thus figures in the foreground are sculpted in high-relief, those in the background in low-relief. Low relief may use any medium or technique of sculpture, stone carving and metal casting being most common. Large architectural compositions all in low relief saw a revival in the 20th century, being popular on buildings in Art Deco and related styles, which borrowed from the ancient low reliefs now available in museums. Some sculptors, including Eric Gill, have adopted the "squashed" depth of low relief in works that are actually free-standing.
Mid-relief, "half-relief" or mezzo-rilievo is somewhat imprecisely defined, and the term is not often used in English, the works usually being described as low relief instead. The typical traditional definition is that only up to half of the subject projects, and no elements are undercut or fully disengaged from the background field. The depth of the elements shown is normally somewhat distorted. Shallow-relief or rilievo stiacciato, used for the background areas of compositions with the main elements in low-relief, was perfected by the Italian Renaissance sculptor Donatello. It is a very shallow relief, which merges into engraving in places, and can be hard to read in photographs.
HIGH RELIEF
High relief (or altorilievo, from Italian) is where in general more than half the mass of the sculpted figure projects from the background, indeed the most prominent elements of the composition, especially heads and limbs, are often completely undercut, detaching them from the field. The parts of the subject that are seen are normally depicted at their full depth, unlike low relief where the elements seen are "squashed" flatter. High-relief thus uses essentially the same style and techniques as free-standing sculpture, and in the case of a single figure gives largely the same view as a person standing directly in front of a free-standing statue would have. All cultures and periods in which large sculptures were created used this technique in monumental sculpture and architecture.
Most of the many grand figure reliefs in Ancient Greek sculpture used a very "high" version of high-relief, with elements often fully free of the background, and parts of figures crossing over each other to indicate depth. The metopes of the Parthenon have largely lost their fully rounded elements, except for heads, showing the advantages of relief in terms of durability. High relief has remained the dominant form for reliefs with figures in Western sculpture, also being common in Indian temple sculpture. Smaller Greek sculptures such as private tombs, and smaller decorative areas such as friezes on large buildings, more often used low relief.
Hellenistic and Roman sarcophagus reliefs were cut with a drill rather than chisels, enabling and encouraging compositions extremely crowded with figures, like the Ludovisi Battle sarcophagus (250–260 CE). These are also seen in the enormous strips of reliefs that wound round Roman triumphal columns. The sarcophagi in particular exerted a huge influence on later Western sculpture. The European Middle Ages tended to use high relief for all purposes in stone, though like Ancient Roman sculpture their reliefs were typically not as high as in Ancient Greece. Very high relief reemerged in the Renaissance, and was especially used in wall-mounted funerary art and later on Neo-classical pediments and public monuments.
In Hindu-Buddhist art of India and Southeast Asia high relief can also be found, although it is not as common as low reliefs. Most of Hindu-Buddhist sculptures however also can be considered as a high relief, since these sculptures usually connected to a stella as the background to support the statue as well as provides additional elements such as aura or halo in the back of sculpture's head, or floral decoration. The examples of Indian high reliefs can be found in Khajuraho temple, that displaying voluptuous twisting figures that often describes the erotic Kamasutra positions. In 9th-century Prambanan temple, Central Java, the examples are the high reliefs of Lokapala devatas, the guardian of directions deities.
SUNK RELIEF
Sunk or sunken relief is largely restricted to the art of Ancient Egypt where it is very common, becoming after the Amarna period of Ahkenaten the dominant type used, as opposed to low relief. It had been used earlier, but mainly for large reliefs on external walls, and for hieroglyphs and cartouches. The image is made by cutting the relief sculpture itself into a flat surface. In a simpler form the images are usually mostly linear in nature, like hieroglyphs, but in most cases the figure itself is in low relief, but set within a sunken area shaped round the image, so that the relief never rises beyond the original flat surface. In some cases the figures and other elements are in a very low relief that does not rise to the original surface, but others are modeled more fully, with some areas rising to the original surface. This method minimizes the work removing the background, while allowing normal relief modelling.
The technique is most successful with strong sunlight to emphasise the outlines and forms by shadow, as no attempt was made to soften the edge of the sunk area, leaving a face at a right-angle to the surface all around it. Some reliefs, especially funerary monuments with heads or busts from ancient Rome and later Western art, leave a "frame" at the original level around the edge of the relief, or place a head in a hemispherical recess in the block (see Roman example in gallery). Though essentially very similar to Egyptian sunk relief, but with a background space at the lower level around the figure, the term would not normally be used of such works.
COUNTER RELIEF
Sunk relief technique is not to be confused with "counter-relief" or intaglio as seen on engraved gem seals - where an image is fully modeled in a "negative" manner. The image goes into the surface, so that when impressed on wax it gives an impression in normal relief. However many engraved gems were carved in cameo or normal relief.
A few very late Hellenistic monumental carvings in Egypt use full "negative" modelling as though on a gem seal, perhaps as sculptors trained in the Greek tradition attempted to use traditional Egyptian conventions.
SMALL OBJECTS
Small-scale reliefs have been carved in various materials, notably ivory, wood, and wax. Reliefs are often found in decorative arts such as ceramics and metalwork; these are less often described as "reliefs" than as "in relief". Small bronze reliefs are often in the form of "plaques" or plaquettes, which may be set in furniture or framed, or just kept as they are, a popular form for European collectors, especially in the Renaissance.
Various modelling techniques are used, such repoussé ("pushed-back") in metalwork, where a thin metal plate is shaped from behind using various metal or wood punches, producing a relief image. Casting has also been widely used in bronze and other metals. Casting and repoussé are often used in concert in to speed up production and add greater detail to the final relief. In stone, as well as engraved gems, larger hardstone carvings in semi-precious stones have been highly prestigious since ancient times in many Eurasian cultures. Reliefs in wax were produced at least from the Renaissance.
Carved ivory reliefs have been used since ancient times, and because the material, though expensive, cannot usually be reused, they have a relatively high survival rate, and for example consular diptychs represent a large proportion of the survivals of portable secular art from Late Antiquity. In the Gothic period the carving of ivory reliefs became a considerable luxury industry in Paris and other centres. As well as small diptychs and triptychs with densely packed religious scenes, usually from the New Testament, secular objects, usually in a lower relief, were also produced.
These were often round mirror-cases, combs, handles, and other small items, but included a few larger caskets like the Casket with Scenes of Romances (Walters 71264) in Baltimore, Maryland, in the United States. Originally there were very often painted in bright colours. Reliefs can be impressed by stamps onto clay, or the clay pressed into a mould bearing the design, as was usual with the mass-produced terra sigillata of Ancient Roman pottery. Decorative reliefs in plaster or stucco may be much larger; this form of architectural decoration is found in many styles of interiors in the post-Renaissance West, and in Islamic architecture.
WIKIPEDIA
Early juveniles in August when all or most adults dead. Similar form to adults, but periostracum thinner and paler, and spire protrudes less.
Maximum dimension 4.1 mm and 3.3 mm, Portlethen, north-east Scotland, August 1970.
Full SPECIES DESCRIPTION BELOW
Revised PDF available at www.researchgate.net/publication/372768813_Lacuna_pallidu....
Sets of OTHER SPECIES at: www.flickr.com/photos/56388191@N08/collections/
Lacuna pallidula (da Costa, 1778)
Synonyms: Cochlea pallidula da Costa, 1778; Lacuna neritoidea Gould, 1840; Lacuna patula Thorpe, 1844; Lacuna retusa Brown.
Current taxonomy: WoRMS www.marinespecies.org/aphia.php?p=taxdetails&id=140168
Vernacular: Pallid chink shell; Pale lacuna; Gwichiad agennog gwelw (Welsh); Lacuna pâle (French); Lavspiret grubesnegl (Danish); Bleke scheefhoren (Dutch); Blek lagunsnäcka (Swedish).
Shell description
The largest dimension of female shells is up to about 12 mm fig. 01 flic.kr/p/2kNQ7pc and males grow to 6 mm. The species has an annual life cycle; all or most adults are dead by June. Their small juvenile offspring occur in summer fig. 02 flic.kr/p/2kGH2G9 , growing to full size in winter. The body whorl forms the great majority of the shell, and the very small spire is sunk below the upper margin in most views. Juveniles are similar in form with a slightly lower spire. Sutures between the whorls are distinct. The smooth surface has no sculpture apart from numerous, growth lines.
One face of the hollow columella is missing, exposing a long wide columellar groove (lacuna, chink or canal), leading to a large funnel-like umbilicus fig. 03 flic.kr/p/2kNL1YB . On some specimens the columellar groove is indistinct and the umbilicus reduced fig. 04 flic.kr/p/2kNPCc9 and fig. 05 flic.kr/p/2oQ83ra .
The very large ‘D’ shape aperture is as high as the whole shell, and it occupies about 75% of the area in apertural-view images fig. 01 flic.kr/p/2kNQ7pc . The palatal lip is semi-circular, and it continues along the abapertural side of the columellar groove. The wide, white columellar lip forms the adapertural edge of the groove fig. 03 flic.kr/p/2kNL1YB .
The ‘D’ shape operculum is a rapidly expanding oligogyrous spiral with its off-centre nucleus close to the base of the columellar lip. It is transparent, tinted yellow fig. 04 flic.kr/p/2kNPCc9 & fig. 06 flic.kr/p/2kNL1Ut or nearly colourless fig. 05 flic.kr/p/2oQ83ra . The substantial periostracum is olive-brown with distinct growth lines on large specimens fig. 07 flic.kr/p/2kNQ773, and it usually extends beyond the lip of the aperture fig. 04 flic.kr/p/2kNPCc9 . Under the periostracum, the calcareous shell is white or yellowish white fig. 01 flic.kr/p/2kNQ7pc . Live adults with a thick opaque periostracum are olive-green/brown in water fig. 08 flic.kr/p/2kNPC3g becoming dull brown when dead and dried fig. 01 flic.kr/p/2kNQ7pc . There are no coloured bands or variegation at any stage.
Body description
The flesh is translucent white with varying amounts of yellow or pink tinting fig. 07 flic.kr/p/2kNQ773 and fig. 05 flic.kr/p/2oQ83ra . The snout is ventrally slit fig.06 flic.kr/p/2kNL1Ut and usually rolled into a cylinder fig. 09 flic.kr/p/2oQ92WM . The extended cephalic tentacles are long, smooth, translucent whitish and taper to a blunt tip. When contracted they wrinkle and any yellow tint is intensified fig. 08 flic.kr/p/2kNPC3g . There is a black eye on a slight bulge at the base of each tentacle fig. 07 flic.kr/p/2kNQ773 . The roof of the mantle cavity is whitish translucent showing the colour of the shell except for the mantle edge which is thick and sometimes yellowish fig. 09 flic.kr/p/2oQ92WM . The foot is white with varying amounts of yellow or pink fig. 07 flic.kr/p/2kNQ773 , especially on the opercular disc which supports, and is visible under and through, the transparent operculum fig. 05 flic.kr/p/2oQ83ra and fig. 09 flic.kr/p/2oQ92WM . The two small, flat metapodial tentacles protrude beyond the posterior of the operculum fig. 09 flic.kr/p/2oQ92WM .
Key identification features
Lacuna pallidula
1) Columellar groove (lacuna or chink) leads to umbilicus fig. 01 flic.kr/p/2kNQ7pc but is sometimes sealed over fig. 04 flic.kr/p/2kNPCc9 .
2) Largest dimensions up to 12 mm (female) and 6 mm (male). Hardly any of the spire protrudes beyond the body whorl fig. 01 flic.kr/p/2kNQ7pc
3) Very large ‘D’ shape aperture equals shell height and occupies about 75% of area in apertural view fig. 01 flic.kr/p/2kNQ7pc.
4) Shell olive-brown with no spiral bands fig. 08 flic.kr/p/2kNPC3g .
5) Body white fig. 07 flic.kr/p/2kNQ773 , sometimes yellowish or pinkish; no grey stipple.
6) Found mainly on Fucus serratus and sometimes on Laminaria.
Similar species
Lacuna parva (da Costa, 1778) fig. 10 flic.kr/p/2kNL1A2 .
1) Columellar groove (“lacuna” or “chink) leads to umbilicus. 2) Usual maximum height 4 mm; sometimes 6 mm. Spire 30% to 40% of shell height.
3) Aperture occupies about 50% of area in apertural-view images.
4) Body whorl has three brown spiral bands; basal band 1 easily overlooked if base of shell not examined. Some shells are uniform white or brown with no bands.
5) Body translucent white, usually stippled grey.
6) Found mainly, especially when young, on small red weeds. Sometimes on fucoids.
Littorina fabalis (W. Turton, 1825) and
L. obtusata (Linnaeus, 1758) fig. 11 flic.kr/p/2kNPBJk .
1) No columellar groove or umbilicus.
2) Maximum dimension up to 17 mm. Very large body whorl and small spire.
3) Aperture occupies about 50% of area in apertural-view images.
4) Shell of L. obtusata is sometimes greenish olive.
5) Body varied shades of yellow, brown or black.
6) Found on Fucus serratus (L. fabalis) or Ascophyllum (L. obtusata) and on Fucus vesiculosus (both).
Lacuna vincta (Montagu, 1803) fig. 12 flic.kr/p/2kNQ6PK .
1) Columellar groove (“lacuna” or “chink”) leads to umbilicus. 2) Maximum height about 10 mm. Well developed spire about 50% of adult shell height, and about 30% on juveniles less than 3 mm high.
3) Aperture occupies about 30% of area in apertural-view images of full grown adults.
4) Body whorl has four brown spiral bands.
5) Body whitish with grey, yellow, orange and/or aquamarine parts.
6) Found on Laminaria and, especially juveniles, on small red weeds. Also on Zostera and sometimes on fucoids.
Lacuna crassior (Montagu, 1803) fig. 13 flic.kr/p/2kGH26u
1) Wide white columellar shelf. Usually no groove or umbilicus but sometimes small ones present.
2) Distinct spire about 50% of mature shell height, about 45% when younger.
3) Aperture occupies about 30% of area in apertural view.
4) Shell when live, has translucent, yellowish-brown spire and brownish-white body whorl. Thick periostracum has distinct, raised, transverse (costal) ridges. Dead dry shells are dull yellowish-brown if periostracum retained, yellowish white with faint spiral lines if periostracum worn off.
5) Body translucent whitish.
6) A rare species which often associates with the bryozoan Alcyonidium diaphanum.
Habits and ecology
L. pallidula feeds on the surface of Fucus serratus (Smith, 1973) and Laminaria (Lebour, 1937) near low water on rocky shores and to 70 metres depth. It is usually absent where turbidity or soft substrate prevents growth of F. serratus. It cannot survive desiccation. Some populations live in the Baltic in salinity down to 12‰.
It moves with a bipedal stepping motion, lifting alternately the right and left sides of the foot. It breeds in late winter and spring, sometimes extending into summer and autumn, with a maximum in February to May in Britain, but precise dates vary regionally. The spawn mass is a low gelatinous dome with an almost circular, oval base (not kidney-shape), diameter 3.9 mm to 5.3 mm (Lebour, 1937), laid on fronds of F. serratus or Laminaria. There are up to about 200 ova per spawn mass fig. 14 flic.kr/p/2kNQ71M . In the low salinity Øresund, Denmark, the masses are smaller with as few as 13 ova (Thorson, 1946 in Fretter & Graham, 1962).
Fretter and Graham (1962) reported confusion with the spawn of “Littorina littoralis” (the name mistakenly used formerly by British authors for an aggregate of Littorina obtusata and L. fabalis). The limited material examined for this account suggests the confusion is with L. fabalis which lives on F. serratus at the same shore level and lays similar, almost circular oval spawn masses, while L. obtusata lives higher up the shore, favouring Ascophyllum, and often lays kidney-shaped spawn masses up to 7 mm long. The difference between the spawn masses of L. fabalis and Lacuna pallidula may be that the latter has a distinctly bevelled peripheral rim while the surface of the former slopes to the substrate without a break in slope fig. 14 flic.kr/p/2kNQ71M . But more investigation is required to test these suggestions; the difference might be due to age of spawn mass. Lacuna parva also has similar spawn but it is found on red algae and is smaller, about 2.5 mm diameter with about 50 ova in Britain fig. 14 flic.kr/p/2kNQ71M ; 2.2 mm to 2.5 mm with 6 to16 ova in the brackish Øresund (Ockelmann & Nielsen, 1981 in Wigham & Graham, 2017).
The individual egg capsules of L. pallidula become angular as they swell and become crowded and compressed. There is no planktonic veliger stage; young emerge as tiny crawling snails. Through a microscope, just before hatching, two tentacular extensions of the opercular disc protruding beyond the operculum may be detected on the embryos within the clear capsules (Fretter & Graham, 1962). Males die after mating, and the females about a month later, so all or most adults breeding in the main period are dead by June or July, and few specimens over 5 mm high can be found in August fig. 02 flic.kr/p/2kGH2G9 . Both sexes grow rapidly until October. From October to February males grow slowly, but females at three times their rate so that by breeding time they are over twice as high as males (Thorson, 1946 in Fretter & Graham, 1962). When mating, the small male rides on the female’s shell near the aperture with his penis inserted into her mantle cavity 15Lp flic.kr/p/2rSk89j.
Distribution and status
L. pallidula occurs from northern Norway and Iceland to Atlantic Spain and New England (USA). GBIF map www.gbif.org/species/2301181
It is found all around Britain and Ireland, but is scarce or absent in the north-eastern Irish Sea and southern North Sea where lack of hard substrate and/or turbidity hinder the growth of Fucus serratus and Laminaria. UK distribution map NBN species.nbnatlas.org/species/NBNSYS0000175975#tab_mapView
Acknowledgements
For use of images, I thank Sarah Charles and Rob Durrant.
References and links
Forbes, E. & Hanley S. 1849-53. A history of the British mollusca and their shells. vol. 3 (1853), London, van Voorst. archive.org/details/historyofbritish03forbe/page/56/mode/2up
Also plate LXX11 at end of vol.4, fig. 1 & 2, also fig. 3 & 4 labelled “L. patula” archive.org/details/historyofbritish04forbe/page/n459/mod...
Fretter, V. and Graham, A. 1962. British prosobranch molluscs. London, Ray Society.
Graham, A. 1988. Molluscs: prosobranch and pyramidellid gastropods. Synopses of the British Fauna (New Series) no.2 (Second edition). Leiden, E.J.Brill/Dr. W. Backhuys. 662 pp.
Jeffreys, J.G. 1862-69. British conchology. vol. 3 (1865). London, van Voorst.
archive.org/details/britishconcholog03jeffr/page/350/mode...
Lebour, M.V. 1937. The eggs and larvae of the British prosobranchs with special reference to those living in the plankton. J. mar. biol. Ass. U.K., 22: 105 – 166. plymsea.ac.uk/953/
Ockelmann, K. W. and Nielsen, C. 1981. On the biology of the prosobranch Lacuna parva in the Øresund. Ophelia 20: 1-16.
Abstract at www.tandfonline.com/doi/abs/10.1080/00785236.1981.10426559
Smith, D. A. S. 1973. The population biology of Lacuna pallidula (da Costa) and Lacuna vincta (Montagu) in north-east England. J. mar. biol. Ass. U.K., 53: 493-520.
Thorson, G. 1946. Reproduction and larval development of the Danish marine bottom invertebrates. Meddelelser fra Kommissionen for Danmarks Fiskeri- og Havundersøgelser, Serie Plankton 4: 1-523.
Wigham, G.D. & Graham, A. 2017. Marine gastropods 2: Littorinimorpha and other, unassigned, Caenogastropoda. Synopses of the British Fauna (New Series) no.61. (344 pages). Field Studies Council, Telford, England.
Glossary
‰ = (salinity) parts salt per thousand parts water (brackish <30‰).
abapertural = away from the aperture.
abapical = away from the apex of the shell.
adapertural = towards the aperture
adapical = towards the apex of the shell.
aperture = mouth of gastropod shell; outlet for head and foot.
apical = at or near the apex.
chink = (see columellar groove).
columella = solid or hollow axis around which gastropod shell spirals; concealed except next to aperture where hollow ones may end in an umbilicus, slit or siphonal canal.
columellar = (adj.) of or near central axis of spiral gastropod,
columellar groove = Groove where one face of hollow columella missing, terminates in umbilicus. Also called “lacuna” or “chink.
columellar lip = lower (abapical) part of inner lip of aperture.
cephalic = (adj.) of the head.
costa = (pl. costae) rib crossing a whorl of a gastropod shell at about 90° to direction of coiling and any spiral ribs or lines.
costal = (adj.) of, or arranged like, costae.
ctenidium = comb-like molluscan gill; usually an axis with a row of filaments either side.
height = (of gastropod shells) distance from apex of spire to base of aperture.
lacuna = (see columellar groove).
mantle = sheet of tissue that secretes the shell and forms a cavity for the gill.
oligogyrous = (of a spiral) having few turns.
operculum = plate of horny conchiolin used to close shell aperture.
palatal lip = outer lip of gastropod aperture.
parietal lip = upper (adapical) part of inner lip of gastropod aperture that lies, often as a glaze, on surface of whorl.
periostracum = thin horny layer of conchiolin often coating shells.
plankton = animals and plants that drift in pelagic zone (main body of water).
protoconch = apical whorls produced during embryonic and larval stages of gastropod; often different in form from other whorls.
suture = groove or line where whorls adjoin.
umbilicus = cavity up axis of some gastropods, open as a hole or chink on base of shell, sometimes sealed over.
umbilical groove = narrow slit opening of umbilicus on some gastropods.
veliger = shelled larva of marine gastropod or bivalve mollusc which swims by beating cilia of a velum (bilobed flap).
Quick-Look Hill-shaded Colour Relief Image of 2014 0.50m LIDAR Composite Digital Surface Model (DSM).
Data supplied by Environment Agency under the Open Government License agreement. For details please go to: www.nationalarchives.gov.uk/doc/open-government-licence/v...
For full raster dataset go to: environment.data.gov.uk/ds/survey
Went through some photos from flight to Icy Bay in 2013.
Alaska, Yukon mountains set - www.flickr.com/photos/29750062@N06/sets/72157627352686775/
my photos arranged by subject - www.flickr.com/photos/29750062@N06/collections
PNNL staff member Alex Crump checks the equipment that studies the Environmental Significance of the Groundwater-Surface Water Interaction Zone.
Terms of Use: Our images are freely and publicly available for use with the credit line, "Courtesy of Pacific Northwest National Laboratory"; Please use provided caption information for use in appropriate context.
Oil pastel on ivory paper 24 x 18
These portraits were influenced by Tim Burton's lovely pastel drawings on Flickr. I tried to create a lot of movement over the surface, to some extent both departed from the original source photo and the likeness to the person, however I hope that can be overlooked.
I have been greatly influenced by David Hockney's portraiture, particularly those where he's worked in series. I always liked that, he uses line much in the way that I like to use it. I am pleased to be getting back into my oil pastel work after a number of years when I only used this medium a little.
Family of Trumpeter Swans sticks to the lily pad beds on a blustery day to keep their growing youngsters from blowing across the lake. The juveniles glean wild rice and aquatic insects along the surface of the water.
20200223-4089
Na mijn bezoek aan de Eletriciteits Fabriek ben ik even bij Nest naar binnen gegaan. Waarom? Omdat het kaartje bij de EF een combiticket met Nest was.
Bij Lokaal 3 rechtsaf, door de fietsenstalling en dan de tweede deur rechts.
Bij binnenkomst viel ik meteen op een aantal hele grote stukken aan de muur. Het leek op hier en daar gekreukeld metaal in mooie metallic kleuren. Het zijn flinke “jongens”, 100 of 150 cm breed ene 150 of 200 cm hoog.
Ik maak maar zelden foto’s van kunstwerken en ook deze keer niet van het hele werk, maar heb details gefotografeerd om een indruk te krijgen. De kunstenaar Jérôme Robbe, (1981,Parijs) neemt grote platen plexiglas met een zilveren of gouden coating. Die gaat hij met een warmtepistool bewerken zodat ze van vorm veranderen en op sommige plekken structuren ontstaan waarin je landschappen kunt zien. Vervolgens krijgen ze een vernislaag in verschillende kleuren die traag in elkaar overvloeien.
De tentoonstelling heeft de naam “Fluid Desires”. Dat is precies wat het is. Ik was er weg van. Als ik meer muur en geld zou hebben had ik er een gekocht.
Bezoek ook de website van deze kunstenaar
All images are copyrighted by Pieter Musterd. If you want to use or buy any of my photographs, contact me. It is not allowed to download them or use them on any website, blog etc. without my explicit permission.
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Lit by window light only
(C)2010 Paul Hodgson, all rights reserved
Any reproduction of the image is strictly forbidden without first seeking my agreement.
Eastern shore of Lake Eibsee, seen from the village of Eibsee, which belongs to the municipality of Grainau, Wetterstein Mountains (Eastern Alps), Bavaria, Germany
Some background information:
Eibsee is a natural lake 9 km (6 miles) southwest of the town of Garmisch-Partenkirchen. At an elevation of 973.28 m, its surface area is 177.4 ha and its maximum depth is 34,5 m (113 feet). Lake Eibsee lies at the base of Zugspitze (2,962 m resp. 9,718 feet above sea level), Germany's highest mountain. In the village of Eibsee (located on the eastern shore of the lake) you can also enter either the Eibsee Cable Car, which brings you right on top of Zugspitze, or the rack railway, which brings you to Zugspitzplatt, the plateau southeast of the mountain, some hundred metres beneath the summit.
Because of its location at the base of Zugspitze and its greenly tinted water, Lake Eibsee is considered to be one of the most beautiful lakes in the Bavarian Alps. In the northeast the little branch Untersee is connected with the main part of the lake by a bottleneck, which is only 50 metres broad. This bottleneck can be crossed by a footbridge. Lake Eibsee has eight islands, of which Sasseninsel near the lake’s southeast shore is the largest one.
The lake was formed during the Würm glaciation, when the Isar-Loisach glacier vanished and left a basin behind which filled up with water. 3,400 to 3,700 years ago, a tremendous rockslide with an expanse of 13 square kilometres and a volume of 350 cubic metres crossed the middle and eastern parts of the lake. Its energy release was estimated at 2.9 megatons of TNT resp. 220 Hiroshima atomic bombs. The rockslide resulted in a significant change of the Eibsee basin’s morphological shape. At that time today’s shape was formed with its 29 shallows and eight islands. Hence Lake Eibsee is one of the very rare cases, in which shallows and islands are much younger than the lake basin itself.
Lake Eibsee is fed by two streams, Kotbach in the northwest and Weiterbach in the south of the lake. However, Eibsee is a so-called "blind lake" with no outlet above ground. Its water only flows or trickles off subterraneously. It is presumed, that the headwater of Kreppbach stream, which is situated two kilometres northeast of the lake is fed subterraneously by the waters of lake Eibsee.
Not before 1900, a first inn was built at the lakeside. In 1913, the inn was converted into a small hotel, which was again converted into a much larger hotel with a guest capacity of 200 after World War I. In 1941 the hotel was annexed by German airforce and after Word War II it was confiscated by US Army, which used the hotel as a recreation home for their forces. Today Lake Eibsee is still a very popular recreation area with lawns for sunbathing at the whole northern lakefront. However, only dauntless people venture a plunge into the cold water of this mountain lake.
The Zugspitze, at 2,962 m (9,718 feet) above sea level, is the highest peak of the Wetterstein Mountains in the Eastern Alps as well as the highest mountain in Germany. On the flanks of the Zugspitze are three glaciers, including the two largest in Germany: the Northern Schneeferner with an area of 30.7 hectares and the Hoellentalferner with an area of 24.7 hectares. The third is the Southern Schneeferner which covers 8.4 hectares. All three glaciers are in extreme danger of completely disappearing in the next couple of years due to climate warming and greenhouse effect caused by human activities.
To this day the ascent of Zugspitze, that was first climbed in 1820, is still a bold venture, which is often seriously underestimated. There are some routes to the summit, with different levels of difficulty, but all of them are still fraught with risks. Therefore many more or less experienced mountain climbers have already lost their lifes during their attempt to climb the summit. The last one was a female Chinese climber in 2013, who had a fatal fall of 500 metres just 100 metres beneath the summit. However, the biggest catastrophy in regard to the number of losses of human lifes happened 50 years ago, in 1965, and there were no mountain climbers involved. A huge snow avalange came down from the mountain side and when it arrived in the skiing area on the Zugspitzplatt, the plateau southeast of the mountain, some hundred metres beneath the summit, it swept ten skiers to their death.
There are also some ways to get to the summit without any physical effort: Three cable cars run to the top of the Zugspitze. The first one, the Tyrolean Zugspitze Cable Car with its lower terminus on the Austrian side, was built in 1926 and terminated on an arête below the summit before the terminus was moved to the actual summit in 1991. The second one connects the summit of Zugspitze with the Zugspitzplatt and was opened in 1931. On Zugspitzplatt the top station of a rack railway is located, which was founded in 1928, running through the northern flank of the mountain and leading to several stations on the Bavarian side. Finally there’s a third cable car, the Eibsee Cable Car, which was opened in 1963.
On top of Germany you can find a meteorological station and the Muenchner Haus, which belongs to the Alpine Club section. It offers meat and drink as well as thirty beds for overnight stays and is open to overnight guests from May to October. But there are also several shops (even one selling Rolex watches) and other restaurants (even one with exclusive cuisine). There’s an observation platform, Germany’s highest beer garden and more than enough toilets (even special ones for Arab women). And finally there’s a short via ferrata (about 40 metres long), running obliquely up and down from the observation platform to the peak and its summit cross. With such a touristic infrastructure it’s no wonder that the summit of the Zugspitze is visited by more than 500,000 people per year at an average.