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The stone in the foreground is the "slaughter stone", so called because archaeologists and antiquarians have lurid imaginations and the rock contains deposits of iron ore. We are standing a little off the axis of Stonehenge, with the head stone, over which the midsummer sun just about rises, a little way behind us.
The discovery of Stonehenge's alignment with the midsummer sun begins in 1740 with William Stukeley's Stonehenge: A Temple Restor'd to the British Druids. Stukely follows Plutarch's observation that the Ancients built their temples to face the rising sun; his Druids were Patriarchs, so it made sense that they would emulate the Temple of Solomon and so forth (which he assumed was also aligned with the sunrise) when building Stonehenge.
Stukeley was a big fan of the Druids, but this created a dilemma--the Druids were incredibly smart, and the exactitude with which Stonehenge is constructed reflects this smartness ("the exactness with which the Druids set their works, and the uniformity of their variation, make me believe this variation was not the effect of chance or negligence").
However, for smart people, the erection of huge stones for the simple purpose of marking where the sun will rise appears clumsy ("the Druids were too good astronomers and mathematicians to need so mean an artifice: nor does it correspond to the quantity precisely enough").
So he flip-flopped, and suggested that while it was roughly aligned with the midsummer sun, Stonehenge's actual alignment was with the precise magnetic north pole. He got round the fact that it didn't actually align with magnetic north by explaining that the magnetic pole oscillated.
* * *
As anybody who has actually bothered to travel through time to commune with the Druids could have told Stukely, Stonehenge's alignment was in reality intended to encode a message to their counterparts in the far future.
Previous: Adjusting the gamma curve
Building the frames for Hugin
Once I have reviewed all frames and added the build rules to my Makefule, I add this rule:
AonachDubh.pto: aonach_dubh-f1.tiff aonach_dubh-f2.tiff aonach_dubh-f3.tiff aonach_dubh-f4.tiff aonach_dubh-f5.tiff aonach_dubh-f6.tiff
echo "create AonachDubh.pto with Hugin"
In the absence AonachDubh.pto, this will work as a dummy target, causing make to generate the TIFF versions of all frames. Once I have created the panorama file AonachDubh.pto with Hugin, an as long as all frames are present, this rule will have no effect.
Automatic alginment
Adding the frame files to a new panorama in Hugin using its Assistant interface will make it assign the control points and attempt to align the images in one go. With a good enough set of frames, such alignment will normally run without problems, but with this odd set I've got the first result was a bit disappointing.
The mess shown here is caused by a combination of factors, including the lack of overlap between some frames, bogus control points found in the farmes that did not overlap, too few control points between well-overlapping frames, too many control points concentrated in very small areas, and perhaps other problems I am not aware of. The solution in this case was to delete the automatically assigned control points and place them manually, aiming for the best spread.
But before we do that, let's take a look at a few bad cases of control point positioning.
Zachry Construction's foreman checks the alignment and placement of the first concrete girder for the new Radio Road Bridge over I-40 East.
The screw located just behind the frameline mask can only be fully visible when the lens is focused at infinity. The screw moves the rangefinder patch focusing lens (A) forward or backward for horizontal alignment. It is at infinity that the horizontal alignment can be most accurately done.
The rest of the labellings are to explain which parts serves what purpose in the rangefinder.
Sony CyberShot WX350
They're working pretty energetically on the Sedalia Trust Building, but it's too little, too late in my opinion. Just tear the thing down. It's a dangerous building and I don't think I'd ever "trust" it, personally!
Sequence analysis of SsCBF1.(A) Amino acid sequence alignment between SsCBF1 and other known CBF1s. The alignment was performed using ClustalX 2.0 and DNAMAN software. Black background indicated conserved residues among all the proteins selected. The AP2 DNA-binding domain and other signature motifs were indicated by solid lines. (B) Phylogenetic relationships between SsCBF1 and other CBFs from various species. The phylogenetic tree was generated by the neighbor-joining method using MEGA 5.0. Organisms were abbreviated as follows: St, Solanum tuberosum; Sc, Solanum commersonii; Sl, Solanum lycopersicum; Ss, Solanum lycopersicoides; Ca, Capsicum annuum; At, Arabidopsis thaliana. GenBank accession numbers of the CBFs are listed as follows: AtCBF1 (AEE85066), AtCBF2 (AEE85064), AtCBF3 (AEE85065), AtCBF4 (ABV27186), SsCBF1 (ACY79412), SlCBF1 (AAS77820), SlCBF2 (AAS77821), SlCBF3 (AAS77819), ScCBF1 (ACB45093), ScCBF2 (ACB45094), ScCBF3 (ACB45092), ScCBF4 (ACB45084), StCBF1 (ABI74671), StCBF2 (ABI94367), StCBF3 (ACB45095), StCBF4 (ACB45083), StCBF5 (ACB45082), CaCBF1 (AAZ22480), CaCBF3 (ADM73296).
Planetarium V2
Amazing true action planetarium
Posted by Second Life Resident Torley Linden. Visit France Creation.
Sequence alignment of TaNAC67 and NACs in various plant species.A. Amino acid alignment of TaNAC67 and other NAC family members from selected plant species. The numbers on the left indicate amino acid position. Shared amino acid residues are in black background. Gaps, indicated by dashed lines are introduced for optimal alignment. The region underlined indicates the conserved NAC-domain. ?, conserved amino acid motif (AA sequences in red rectangles). Alignments were performed using the Megalign program of DNAStar. B. Phylogenetic tree of TaNAC67 and NAC members from other plant species. Abbreviations: At, Arabidopsis thaliana; Bd, Brachypodium distachyon; Eg, Elaeis guineensis; Gm, Glycine max; Hv, Hordeum vulgare; Os, Oryza sativa; Sb, Sorghum bicolor; Sl, Solanum lycopersicum; Vv, Vitis vinifera; Zm, Zea mays. The phylogenetic tree was constructed with the PHYLIP 3.69 package, and the bootstrap values are in percent.
The Carnac alignments is one of the most important and huge megalithic site worldwide.
See what changed since 1921:
en.wikipedia.org/wiki/Carnac_stones
The aim of this reconstruction is to invite everyone to store safe and preserve memories as any single piece can be important to learn whole world story
Zachry Construction's foreman checks the alignment and placement of the first concrete girder for the new Radio Road bridge over I-40 East.
Basically done with this panel alignment I will be doing a little filing with a body file but you can see the alignment looks much better.
Fish carving with Crescent Moon and Venus.
The artist/carver is Wyman Friske, aka “Boddum Feeder”
www.morningstarpublishing.com/articles/2011/06/18/grand_t...
photo date/id to order a print: 20130711_1334cPanoBb
click the pic to view on black
Just a quick video to show what has been done so far. I am still working on wiring the insides of the unit but I have reached a point now where there is not much more I can do until I get some parts that will hopefully be here on Thursday. :-) I have been having a bit of fun with this project! ;-) Still a ways to go on it but it is coming along nicely. (Gar... please note lights! ;-) Ha! )
Now... back to some Light Painting for the next few evenings. :-)
49|365
Not a photo I would normally post, but hey, I have 316 more photos to go. Sunday, Clint and I were going to take a ride, we made it to the end of the street and he noticed it wasn't driving right, he told me to get out and check the front tire, sure enough it was flat... shredded on the edge flat! No one was open Sunday, so Ted took it Monday morning to get 2 new front tires, this morning I took it for the alignment. My family thinks it's time to trade in my Infinity G35 for a 4-door Grandma car. I don't want a second car payment so I will have to look around for something affordable that doesn't break the bank
The crescent moon aligned with the planets Jupiter and Venus shortly after sunset on Thursday night. Venus is at the bottom of the triad, with Jupiter in the center.
To track the stars accurately as they traverse the sky, the pin of the barn door tracker's strap hinge must be aligned parallel to the Earth's axis of rotation so it points at the North Celestial Pole, a point in the sky very near the star Polaris. The important word here is near. Polaris is actually 40 minutes of arc, equivalent to one-and-a-third full Moon diameters, from the NCP, and that's not near enough to ensure accurate tracking.
I've mounted a 6x30 finderscope on the tracker to assist with polar alignment. The procedure for aligning the finder parallel to the hinge pin is easy enough: Sight a distant object in the finder's crosshairs while opening and closing the hinge; keep adjusting the finder's positioning setscrews until the crosshairs remain fixed on the distant object.
The procedure for aligning with the NCP is more complicated, for when it's sighted in the finder, the finder's crosshairs are aimed at empty space with Polaris nearby. Moreover, because all the stars rotate about the NCP, including Polaris, the precise location of that empty space relative to the nearest thing one can see – Polaris – changes throughout the day. Alignment is made even more complicated by the optics of the finderscope: it has no integrated mirrors or prisms, so it produces upside-down and mirror-reversed images. It takes mental gymnastics to relate the sky seen with the eyes to the view seen through the finder.
There are several methods that can be used to align on the pole, but I don't like any of them, for they are either time consuming or insufficiently accurate. I want something fast and foolproof.
I wondered: what would I see in the finder if its crosshairs were on the NCP? Polaris would be 40' to one side, the star λ Ursae Minoris would be 1° off to the other, and δ Ursae Minoris would be 3.5° further along. Why not replace the finder's crosshairs with a reticle that shows that image? Aligning the tracker would then be easy, for I would only have to adjust the tracker's position until the stars matched the pattern on the reticle.
Here's how I made such a reticle:
I measured the finder's True Field Of View by observing a meter stick mounted at a known distance: 7.4° to the eyepiece field stop.
I used Skytools, a planetarium and observation planning software package, to simulate the finder view of the NCP. Skytools needed to know the finder's True Field Of View and that the finder produces a mirror-reversed, flipped image.
I imported a screen shot of Skytool's simulated view, as shown in Image 1 above, into a drawing package (PowerPoint) so I could draw the reticle shown in Image 2. The Bayer designations for stars are not mirror-reversed and flipped, because the eyepiece only magnifies the reticle; it does not otherwise alter the view.
I exported the reticle into Photoshop to resize it to precisely 18 mm so it would fit inside the field stop of the finder eyepiece (Image 3). I then printed it on a transparency, cut it out, and placed it on the eyepiece crosshairs.
I tested the reticle tonight under light-polluted, moonlit skies. Polaris and δ Ursae Minoris fit into place, but I couldn't see magnitude 6.4 λ Ursae Minoris, which would help most with NCP alignment. While δ was visible, it was too close to the edge of the field of view, where the optical distortion was large, to declare polar alignment. The slightly milky transparency in the eyepiece's light path was obviously evident in the view. Perhaps there's an optically clearer transparency material for use with laser printers?
Just to check, I removed the reticle and sought λ Ursae Minoris again. Transparency or not, λ is not visible under tonight's light polluted skies.
Making a reticle the way I have is easy to do, and the optical quality of the transparency is passable, but it isn't great. I found a site, here, that describes how to engrave an NCP reticle onto Lexan, which would be optically superior, but I doubt I have the manual dexterity to make one.
Current day pictures along the alignment of the former short 2.4km-long branch line from Hawthorn to Kew. Opened in December 1887 the line was single track with an intermediate station 'Barker', south of Barkers Road. The line was electrified in December 1922 as part of the suburban electrification scheme.
From Hawthorn the line descended into a cutting on a tight curve with underpasses at Linda Crescent, Chrystobel Crescent, Mary Street and Kinkora Road. Level crossings with interlocking gates existed at Hawthorn Grove and Barkers Road, either side of Barker Station where the line rose to ground level. The end of the line was in a shallow cutting at Kew station near Denmark and Wellington Streets. See here for some pictures of the line after closure.
As a steam-hauled service it ran as through services to the city during peaks with shuttles off-peak. Electrification saw through services through routed to Fawkner. This presented a problem for the line in from Hawthorn as near-empty Kew trains were timetabled with much busier ones from beyond Camberwell. From 1930 off-peak services were reduced to shuttles to and from Hawthorn. A decade later the line was only operating as a peak hour shuttle with buses operating at other times. In 1952 all rail passenger services ceased with the bus service replacing it also fully withdrawn by 1956.
The line was dismantled in the late 1950's and the cutting filled to form a chain of parks and car parking for Glenferrie Oval. The site of Barker station became the California Motel (since closed and demolished after a period of abandonment) and Kew Station was developed as the head offices for the Country Roads Board (now VicRoads) in 1961.
Looking at where the underpass was located at Mary Street. It appears the pavement has been replaced across where the bridge was located with the bridge abutments still buried beneath the road.
A view taken from Station Road, Mochdre in February 1984 where a brace of Metro-Cammell 2-car units was recorded working the BR Table 83 12:55 Llandudno Junction to Crewe. The train is running on the new track bed alignment installed to cater for the construction of the Landdulas to Glan Conwy [Colwyn By-Pass] section of the A55 North Wales Expressway.
All images on this site are exclusive property and may not be copied, downloaded, reproduced, transmitted, manipulated or used in any way without expressed written permission of the photographer. All rights reserved – Copyright Don Gatehouse