A $5 Lamp Powered Solely by Gravity (Video)

Thats so cool!

Yes. Each GravityLight kit comes with the adjustable lamp and a ballast bag.

love it!! Thanks!

[link to www.dailymotion.com]

Read the comments, idea isn't theirs. Someone at vt designed something similar.

Very, very cool !!!!!

Great!! some out of the box thinking!!

Where? Here? [link to www.indiegogo.com]

where can i buy one ?

I am not sure but this seems like a scam.

No as for the light it self. You can buy simple ones that wind up and light for 30 mins. So scam if you have to put money into it. Because you can buy it already on ebay.

i would have thought you could probably knock one of these up yourself?

[link to www.ebay.com]

PG & E ?

You can build ghetto versions of this thing from household items. The trick is figuring out how to connect everything together to get your desired effect.

I've always wondered what a mad-max scenario would be like in the US, with the massive amounts of electonics and other mechanical crap lieing around our houses. I think there will be all sorts of contraptions built from people attempting to make life easier while in survival mode. All you need is a generator and you have a whole world of possibilites at your disposal.

help them

Human powered, gravity actuated.

That's not a gravity light you dimwit.

Derp!

Drill a hole through the core and have a weight of a few thousand tons go through the core then up on the other side and then back, should give off a few gigawats lol

you should patent that

I believe the weight winds up a dynamo. Then this charges up a battery or a super capacitor. It's not much different than the windup radios that were originally used in 3rd world countries, which now are common as backup emergency devices.

In this case, it's powering a LED, possibly with a Joule Thief. You can alter the brightness, but of course that limits the length of the light produced.

The main thing is trying to create a light that is sustainable versus burning candles or kerosene for light. Candles require either an oil based plant to produce the fat for the candle or lots of animal fat.

Since the LED is not produced locally, nor the rechargeable batter or supercapacitor, then that's a weakness of the system. Experiementers are working with locally produced batteries from common materials, possibly from recycled aluminum cans and wood ash that's discarded from fires, possibly urine batteries too.

We already have a LED light system that's powered by solar cells. You've seen these used outside or in backpacking stores.

Another idea is to have a foot pedal that works a small dc generator to recharge a battery. A trickle charger would work, but there's the chance of breakage.

So far, this is the cheapest light source I've seen work. The problem is that it produces a small amount of light.

they are raking in hella donations for something that isn't even for sale.

they havent even piloted the product yet.

This is much better..

Try to bookmark the video and share it, this is a great opportunity to oppose the monopolization on electricity that the elite has

Awesome!

no freefall speed would not be enough to sling shot it 6000km back

I think I'll stick a potato up Quagmires bum and attach two wires.
I'm sure that will ensure I get a few Giggity watts.