You can take your solar power and scrub it. Solar power is great if you live in, I dunno, daylightistan (aka Los Angeles), but for those of us up here in the Northwest, it’s not practical. But we have gravity, and this lovely gravity-powered lamp will work just fine.
Invented by student Clay Moulton, the lamp is primed, then slowly falls down towards the ground. The falling weight spins a rotor that generates electricity which is translated to a cool, green light.
The lamp could last for up to 200 years and needs no external power to run, and has won awards for its green initiative, and it looks good, too.
it says each drop runs it for about four hours. all well and good, but i’ve not seen anywhere how the hell you turn it off though…
Hey turning off is not a problem. Just stop the falling weight with a pressure screw system or something…
I want one ! Where ? How ?
This has been debunked. If you do the arithmetic, you either get very little light for four hours or a brief, bright flash. Lifting ~50 pounds a few feet just doesn’t store enough energy to be useful for anything more powerful than a clock.