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The Eastern Phoebe holds the distinction of being the subject of the first bird banding experiment in North America. In the early 1800’s.
I captured this one Perched on a light overlooking the canal behind my house.
(Not 100 percent sure on the I.D.)
My First on this one.
Lake Wales, Florida.
Two screenshots from Bing Maps/3D cities in Windows 10
CROSSVIEW
To view 3D pics cross your eyes focusing between at the pictures until both images overlap one another in the middle.
Per vedere le foto in 3D incrociare (strabuzzare leggermente) gli occhi fino a che le due immagini si sovrappongono formandone una sola centrale.
FOV: 3" wide.
On an aluminum tray, salt, sulfur were heated until the salt was melted. The frozen salt contained sulfide and possibly, disulfide ions. This was then added to a solution of sodium silicate and dissolved by boiling the solution.
To this solution was added another solution containing sodium chloride and aluminum sulfate. When they combined, a white precipitate formed. This was strained and dried, then melted with a MAPP gas torch.
Shown under UVc light.
Key:
WL = White light (halogen + LED)
FL = Fluoresces
PHOS = Phosphorescent
BL = 450nm,
UVa = 368nm (LW), UVb = 311nm (MW), UVc = 254nm (SW)
'>' = "stimulated by:", '!' = "bright", '~' = "dim"
Synthetic "Sodalite1"
19Sep2015
Series best viewed in Light Box mode using Right and Left arrows to navigate.
Photostream best viewed in Slideshow or Lightbox mode (in the dark).
18 Watt Triple Output UV lamp from Polman Minerals - Way Too Cool UV lamps
In this experimentation I wanted to try observational drawing and experiment with different watercolours. (17.01.2017)
experimenting with a ten minute exposure as a westbound BNSF grain train crosses the rock creek trestle on the UP canyon subdivision through the feather river canyon
Just experimenting with crops, breaking rules of composition etc. Does it work? the sun was way to bright so I took it down 8 stops using a healing brush in Lightroom. Otherwise the colours are as they were in the sky
Voigtländer Avus 6x9
Fomapan 100 Rollfilm
Caffenol R-S 12min
Experiment die Voigtländer Avus 6x9 als "point& shoot" Kamera zu nutzen. Diese wurde im Prospekt von 1921 ja als "Handkamera" beworben. Entfernung immer geschätzt, hier gab die Hundeleine von 5m eine Orientierung. Belichtung per smartphone gemessen.
Experiment the Voigtlander Avus 6x9 to use as a "point & shoot" camera. This was indeed advertised as "Handheld" in the prospectus of 1921. Distance always appreciated here was the leash 5m orientation. Exposure measured by smartphone.
A friend at the photographic society
(flickr site - www.flickr.com/photos/desdynamo/)
gave me his old Praktica L, his first serious camera. I coupled it with some of me Praktica thread (M42) lenses, and ran a roll of Fuji Superia - here are some results,
The Foucault pendulum of the Griffith Observatory.
The pendulum swings independently of the Earth's rotation. As the Earth rotates, the pendulum's direction will slowly change relative to the ground, here causing pegs to be knocked down one after another. This experiment demonstrates that the Earth rotates, and was devised by Léon Foucault in 1851.
I wanted to experiment with light in the dark, since there was barely any sun this week. I also played around with the levels on photoshop to really bring out the colors against the background. This shows my community because I like to surround myself with positive people, no matter what the situation is. In this picture the bright colors represent the positive people in my life, and the black background represents the bad situation.
Chemical experiments.
This photo is copyrighted, you can't use it without my permission.
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This was taken with a Nikon F90X film camera with a 20 odd year old Nikon 35-70 f/2.8 and a Nikon SB600 flash bounced off a reflector to the right.
Experiment with a cherry in a glass... Very easy to do actually, but I found out it is very hard to really get an interesting shot. This is a start though, next time I will get a black background and wine glass:).
An experiment in Photoshop.
Combined all color channels into a monochrome and then masked it on top of the original colored version and "erased" all the parts that were red to make that color really pop out.
I think it turned out quite well. :-)
Sandia researchers Alex Tappan (left) and Rob Knepper watch the detonation of a critical thickness experiment. The experiment typically uses less explosive material than the size of one-tenth of an aspirin tablet to determine small-scale detonation properties. The bench-top experiment is so small, researchers can stand next to the firing chamber with eye and ear protection.
Read more at share.sandia.gov/news/resources/news_releases/why-explosi...
Photo by Randy Montoya.
Acrylic paint on natural dyed cloth. Blogged: thenaturalsurface.blogspot.com/2014/07/experimenting.html
snooted vivitar at 1/2 power with a bunch of stacked CTO gels to get the redish color aimed at the background. Two home made soft boxes on the right and left with strobes into those at about 70-80 degrees off camera. Lumpro on the left at 1/2 or 1/4 power and sb-24 on the right at 1/8th power.
PictionID:45182114 - Catalog:14_017331 - Title:GD Astronautics Experiments - Filename:14_017331.TIF - - - - - Image from the Convair/General Dynamics Astronautics Atlas Negative Collection. The processing, cataloging and digitization of these images has been made possible by a generous National Historical Publications and Records grant from the National Archives and Records Administration---Please Tag these images so that the information can be permanently stored with the digital file.---Repository: San Diego Air and Space Museum
FOV: 3" wide.
Uranyl nitrate solution was used to hydrate 15mL of DAP Plaster of Paris mix. The result showed hardly any green uranyl fluorescence, what could be seen was yellowish green. The plaster was then rehydrated using a concentrated sodium carbonate solution. The water was evaporated and the mixture was then calcined at ~150 degC for 4 hours in an oven. It was then rehydrated using a sodium carbonate solution. The plaster mix bubbled for about a half hour releasing much CO2 gas. After drying a coating of yellowish crystals formed on the surface.
See:
rruff.info/uploads/CM31_167.pdf
Compare to:
www.mindat.org/photo-299521.html
Contains:
Pseudo Schrockingerite (FL Blue-green >BL/UVabc)
Shown in phosphorescent state after exposure to UVabc light.
Key:
WL = White light (halogen + LED)
FL = Fluoresces
PHOS = Phosphorescent
Blue = 450nm,
UVa = 368nm (LW), UVb = 311nm (MW), UVc = 254nm (SW)
'>' = "stimulated by:", '!' = "bright", '~' = "dim"
Carbonated Pseudo Schrockingerite
14Nov2015
Much appreciation to Gordon Czop for the uranyl nitrate.
Series best viewed in Light Box mode using Right and Left arrows to navigate.
Photostream best viewed in Lightbox mode (in the dark).
18 Watt Triple Output UV lamp from Polman Minerals - Way Too Cool UV lamps
With the big hand at the 5, and, er, the other big hand at the 11...it must be either teatime or bedtime, or perhaps it's experiment time.
After 2500 miles the original FAG bottom bracket on my Brompton was worn out. And since I've lived most of my life on 175mm cranks I decided to change things around a bit and dispense with the standard Brompton 170mm cranks.
I picked up this second-hand pair of 175mm FSA Pro Team Issue carbon cranks for a double chainset (the same design as the triple setup on my Lightning P-38 which I love to bits). My original plan was to run a single inner 44T chainring and an outer chainguard, and thus keep the physical gearing unchanged. I knew that, by and large, the arrangement of 44T driving 13t and 16t sprockets through the BWR hub, for a 28.2"-85.3" range, suited both the local terrain and my cadence fairly well. Although I occasionally pined for a 17t I discovered that the gearing intervals would end up worse, not better. But I have a double crankset here! So I decided that I would work on a way to obtain a higher top gear towards 100" and a bottom gear in the region of 24".
With the help of Sheldon "Gain Ratio" Brown, I worked out that a 40/53T combination up front and the standard sprockets on the back would deliver the result: 25.6" to 102.7", with a bit of jiggery-pokery in shifting from one chainring to the other. Since the chain was also at its 1% elongation limit I replaced it. In road testing I discovered that both sprockets were also worn out. That's the second pair I've got through, though those ones lasted rather longer than the first. The chainrings are FSA Pro Road (53T, stolen from my P-38 which, being my 'best' bike, received a new one) and a new Stronglight 5083 (40T), with Race Face steel bolts. Shifting to the inner is accomplished with a gentle nudge from my heel; shifting to the outer requires stopping and using an old tent peg while backpedalling.
On the road, the cranks and chainrings are noticeably stiffer than the one-piece Brompton item. Moving from 170mm to 175mm also affects the gain ratios for the transmission, which is why the overall gearing from foot travel is actually slightly lower than the pure change in chainring sizes.
Having chosen the gearing, the tricky part now of course is sorting the chainline.
Edit: Woe is me! I had to do it all again only 18 months later.
Original DSC_0644