xanadian: I wonder if I can get some engraving done on that Ring....
F42: I've see designs for a gravity light since at least the 80sit's not a 2014 invention
To The Escape Zeppelin!: "Gravitylight produces light with no outside energy source."" It works by attaching a weight to a pulley system that generates power through a set of gears."Author sounds stupid.
Fark like a Barsoomian: All these things that generate power from human work: Does this make it hard to walk? Is the soccer ball so hard to kick around that it messes with the game itself?Inquiring minds are mildly interested.
whipbambucket: F42: I've see designs for a gravity light since at least the 80sit's not a 2014 inventionIsn't this how old clocks worked?
Hollie Maea: That's 0.136 watt hours. They are targeting 25 minutes between recharge. If the entire system is 85 percent efficient, you could power...a quarter watt LED. That's essentially no light, even though lifting a 55 pounds weight 6.5 feet every 25 minutes is a significant hassle that couldn't be farmed out to the kids.And the only way to get more light world be to get a heavier weight, a higher drop, or a shorter time. None of those would be acceptable, and you would need several hundred pounds to get anywhere near enough light to light a room.
Hollie Maea: There is a myth that poor people in developing countries well do anything if it is free, no matter how much it sucks. Nope, they would just keep using kerosene over this stinker of an idea.
Feepit: Actual inventions in that list that might one day see use: Scio (miniaturized spectrometer), Dearman Engine (liquid air-powered engine), XStat (injectable blood clotter).The Ring and Corky are interesting gadgets, but they aren't really inventions and I can easily imagine them being more irritating than helpful in every day use.The other stuff is just crap.
Feepit: Scio (miniaturized spectrometer)
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