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OK, so, maybe the fact that, under vacuum, Scotch tape will emit enough hard x-rays to image the bones in your finger is slightly more impressive, but this is still a pretty cool trick from YouTuber TheFarmacyMan. My off-the-cuff explanation: Glass is frosted because of tiny imperfections in the surface, which refract passing light a’whichaways. The tape adhesive fills ‘em in and, because its outer surface is flat, the rays can pass through more or less straight again. Frosting on both sides of the glass would presumably require tape on both sides for the effect to work. [via Boing Boing]

Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I write for MAKE, serve as Technical Editor for MAKE magazine, and develop original DIY content for Make: Projects.


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