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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
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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
This was part of a DIY macro experiment where I used magnifying glass on the end of the lens so I could still use my kit 18-105mm as my in camera lens.
The result is really outstanding, I think, for a simple cheap office utility.
If you find this interesting and try my idea, please tag it with #Macrocheat
Thank you.
Hope you like it!
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.
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.
Experimenting with different materials to create different layering techniques with photographs. Inspired by aspects of Mark Bradford's work.
Chemical experiments.
This photo is copyrighted, you can't use it without my permission.
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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.
The first shot i took at Birmingham coach station was an experiment , taking photos from the gate as the caoches pulled out. I wasn't happy with it so reverted to my usual spot 2nd lampost along on the opposite side of the road with my camera n 2.5x. Selwyns YN10FXS a Volvo B9R / Plaxton Elite C49FTL leaving Birmingham Coach Stationon a 325 to Clacton. Photo taken 22/12/14
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
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
Testing out if I can make a digital photo look like old handpainted B/W or a magazine photo from the 40´s.
Model was my cousins daughter, and she hated every moment of it since we were trying to get her to eat yoghurt in a messy way. The girl is a Lady and knows her table manners.
Experimenting with different bread making techniques. Rolls on left are 1 hour rising, no proving. On right 1 1/2 hours and proving. Differences include individual kneading and rising for 30mins above oven.
Connectivity and readymade.
Experimenting, manipulating and combining daily life objects in order to attempt, to force or to mystify a workable connection between them, at least to make it visible and/or possible. This exercise is to be considered as a warm-up, a first step towards a further installation or project.
Erg (École de Recherche Graphique), Brussels, Arts Numériques-Atelier (New media art), 2016-2017.
Professors : Marc Wathieu.