Comment on Gravity Light - Alternative form of lighting to replace KeroseneparentComments−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? :-)
Comments
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? :-)