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Yep, hand-drawn holograms. No film or laser beams required. All you need is a hard, dark, reflective piece of plastic, a drawing compass, paper, and tape. The resulting images do indeed pop out in three-D. To get the feel of looking at the finished product, stare at this picture and cross your eyes. Note that the real holograms do not rely on this effect (they are not merely stereo pairs like a Viewmaster or stereopticon).
Although certain detractors claim these craft projects are not holograms, not-entirely-sane inventor William J. Beaty makes excellent counterarguments here. The rest of Beaty’s website is also well worth a look. He’s a man after my own heart.
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Printed from https://www.damninteresting.com/retired/diy-holography-part-i-hand-drawn-holograms/
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wow, i just happen to have a few old hardrives for this project, I think 2.3 GB is a fair trade for a hologram, don’t you think?
Where is Part II?
Di! We had a floor tiled in what looked like chicken wire embedded in porcelain.
If you stared at it for a while it gave a holographic effect; seeming about 4 inches deep. It was way cool back then in the late 1050’s and early 60’s. The first time I saw a comercial or manufactured hologram, I remember wondering if the inventor had the same experiance as a child and figured out how to create the effect from that experiance. LOL
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The obvious is missing. I searched for a simple explaination. I am assuming: a protractor scratching the back (not too hard / deep avoiding high pitch noise) of a sheet of dark & hard plastic. Is that it. The source had a good sciece explaination that looks like the instruction sheet that comes from the manufacter of prescription drugs. 0.0000000012 % of the population read that.