Ben Krasnow
Tuesday, April 28, 2020
Hypercentric optics: A camera lens that can see behind objects
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Telecentric and hypercentric optics are very different from our eyes or normal camera lenses. They have "negative" perspectiv...
Sunday, April 5, 2020
Alpha radiation makes sparks, detects smoke, and eliminates static cling
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Interesting applications of a strong polonium-210 alpha radiation source. The half life is only 140 days, so the Staticmaster brushes m...
8 comments:
Tuesday, March 24, 2020
Antique 4x5 camera creates 20 micron photolithography masks
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I use an antique 4x5 view camera to create high resolution photomasks in my home shop. Source of film and developing chemicals: https://...
2 comments:
Saturday, February 22, 2020
Electron microscope animation: Carbon nanotubes pulled into thread
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First-ever animation of carbon nanotubes self-aligning into a thread, captured by an electron microscope (as far as I know). Electron m...
6 comments:
Tuesday, January 21, 2020
Details in the process of making "blacker than vantablack" coatings (part 1?)
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Recreating MIT's "blacker than vantablack" in a home shop (almost). MIT press release: http://news.mit.edu/2019/blackest-b...
10 comments:
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