January 30, 2018 10:12 am PST
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/vUsWMfQglhY/watch-the-worlds-brightest-f.html
Watch the world's brightest flashlight burn stuff
What happens when a 32,000-lumen flashlight gets concentrated through a magnifying glass or a fresnel lens? Some cool optics, but not a lot of burning. (more…)
Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/vUsWMfQglhY/watch-the-worlds-brightest-f.html
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