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Gravia Floor Lamp: Human Powered, Never Burns Out

Want turn on your desk lamp? Flip a switch! Right?

Man, that is such pre-energy-crisis thinking! How about, instead, you lift a 50 lb brass weight a couple feet up. The lead weight then, slowly, falls back down toward your desk, producing enough energy to squeeze a few hundred lumens (as much as a 40 watt incandescent) over your workspace for the next few hours.

That, in a nutshell, is the idea behind the Gravia. Actually, the concept that won runner-up at the Greener Gadgets Conference actually is a floor lamp, and it requires quite a bit more lifting (about six feet) to power it for four hours.

Still, I rather like the discount brand name cialis idea. It's good to spionline.com.au have an idea of where energy comes from, and it's even cooler to know that, if your light is out, you need to do more than just flip a switch. Reports swarming the internet that the lamp will stay lit for for 200 years (thanks for all the misleading headlines guys!) are unfortunately erroneous. In fact, the lamp produces only four hours of light per lift, but the LEDs, according to the designers, will last for 200 years of use without needing to be replaced.

Now if only someone could guarantee me that these aren't just going to take a nose-dive into basements to collect dust like a crank-powered Billy the Big Mouth Bass...then I'll be satisfied. As it is, I can see people getting pretty tired of the best site viagra oral gel lifting a 50-lb weight six feet in the visit our site order levitra pill air every four hours...

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Comments (13)Add Comment
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not possible?
written by David, February 22, 2008
The folks over at slashdot did the math and enter site viagra 50 mg assert this lamp isn't possible. In the comments you can see the energy created by a falling weight isn't enough to power the LEDs. I have admit I don't know, but several people appeared to independently reach the same conclusion.
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The inventor gave back his prize
written by Al Fin, February 22, 2008
Right. It would take 50,000 pounds, not 50 pounds, to provide the light energy claimed for the device.

The inventor miscalculated the potential energy from gravity by a factor of 1000. Whoops. >:(
0
not junk
written by Phil Plasma, February 22, 2008
I just read the lowest viagra price other comments about the insufficient weight, but let's say it worked - if four hours is the supplied amount of light; I find at home that some lamps are not on that long between the time I get home to turn a light on and the time I got to sleep. I'd be thrilled to have such a thing!
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Let's say anti-gravity and FTL space tra
written by Al Fin, February 22, 2008
Then all of us could have floating houses and live on buy real viagra online alpha centauri. If, say, anything worked that we say, wanted to work . . .
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...
written by B, February 22, 2008
I can see having something like this around when the power goes out being pretty useful.
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...
written by Linda, February 22, 2008
Lead is not environmentally-friendly, and imagine the shipping costs for a 50-lb weight...
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...
written by M, February 23, 2008
Storing potential in mechanical form isn't a particularly new idea and it's worked well over the millenia. No reason it can't continue to online pharmacy levitra do so.
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...
written by elizabeth, February 25, 2008
I am sad to read it is robert-alonso-photos.com impossible. I thought it would be a very good solution to my kids need for night lights.
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written by Djarada, March 01, 2008
It´s a fantastic idea.
Using a block and tackle pulley system would make the just try! where to find viagra lifting of it easy peasy and any way it would not onlyproduce the desired power but it would save alot of money on exercising. :D
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