Ben Krasnow
Friday, January 31, 2025
f/0.38 camera lens made with oil immersion microscope objective
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I removed the protective glass from a CMOS image sensor, and used optical immersion oil to couple the bare image sensor to a 40X NA=1.3 mic...
1 comment:
Tuesday, December 31, 2024
Mutarotation: a sugar that spontaneously changes from sweet to bitter
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Simple sugars can exist in multiple molecular conformations, some of which have different tastes and optical properties. Steve Mould'...
3 comments:
Thursday, June 13, 2024
Micronics SLS nylon 3D printer makes electronic circuits
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A new desktop SLS nylon 3D printer can make printed electronic circuits with the addition of a powdered catalyst and electroless copper plat...
6 comments:
Saturday, August 26, 2023
Photosynthesis photography: Making images with living plant leaves
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How to make photographs using plant leaves: the technique, examples, f/0.5 camera lens construction, and tips & tricks that I learned al...
4 comments:
Wednesday, July 5, 2023
Measuring the amount of lead (Pb) consumed when drinking from lead crystal glassware. Is it safe?
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I show a "DIY" chemical color-based method to determine the amount of lead in water, and then use the method to measure the amount...
1 comment:
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