View allAll Photos Tagged diffusion
Ok, so it's taking longer to get the old pedals off.... More shots of the new ones! I've cleaned this one up a little (digitally speaking) to remove dust specks, but foolishly oversharpened and then over-saved it. Ach - it'll do.
Strobist: SB28 snooted through translucent pvc from top of shot. white pvc reflector at the bottom.
Science Homework: Diffusion Practical - The glass on the left started with clear water, and the glass on the right a coffee solution. Coffee solution was gradually added to the clear water.
This beautiful piece of apparatus/artwork (a three-stage mercury diffusion pump), signed by the glassblower, Roy Trochosinski. It was found during a purge of storerooms in the Physics Department, carefully packed in an enormous cardboard box, wrapped in newspapers dated 1969. It was donated to the Chemistry Department. :=)
Click here for further photos of this item in its new habitat.
The seal above the signature reads:
H. S. Martin & Son
custom.bilt
Evanston, Illinois, U. S. A.
An experiment in coupled "reaction-diffusion systems" (actually, using a mexican hat convolution more akin to field models of neural activity in the cortex). There are two variables with sigmoidal transfer functions, and an adaptation variable that causes the pattern to shift.
eBook printed on several different materials as tracing paper, beige card, white sheet, ruled note-book paper...
Some of the papers have been already printed on one side with a picture.
Folding and binding process as usually
Today I made a diffusion panel. I'll be using this for tomorrow's photo shoot. It's made from PVC and I'll be clamping a white sheet to it.
1. Fold the printed sheets vertically in half.
2. Separate the sheet with the eBook's front cover and then holding the remaining sheets, use scissors or a craft knife, to cut carefully along the dotted lines on each side.
3. Cut the central slot on the sheet with the front cover using scissors or a craft knife. Gently folding the sheet vertically in half, pinch the dotted lines in the centre and cut.
4. Order the sheets by having the front cover face up and stacking the remaining sheets with the odd page numbers in ascending order: 3, 5, 7, 9, 11, 13 (depending on how many sheets each eBook uses).
5. Holding the back cover on top of the assembled sheets, curl bottom half of the sheets and insert through the central slot above the front cover. The front and back covers should be visible next to each other.
6. Check the pagination is correct and fold the finished eBook in half.