Comment on Gravity Light - Alternative form of lighting to replace KeroseneparentComments−dexter31313yThe light seen in the video is not the 30 minute-one. There the weight drops much quicker. Look carefuly at about 55 second in the video.−pdonis13yWell, shortening the time by a factor of 20 makes it a minute and a half of light equivalent to a 40 W incandescent bulb. So maybe this is really a combination light and exercise machine? :-)
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The light seen in the video is not the 30 minute-one. There the weight drops much quicker. Look carefuly at about 55 second in the video.
Well, shortening the time by a factor of 20 makes it a minute and a half of light equivalent to a 40 W incandescent bulb. So maybe this is really a combination light and exercise machine? :-)