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Gravity light

Timothy Kincaid

January 2nd, 2013

We seldom venture far from stories with some relevance to the gay community. But sometimes you run across something that seems to bring tremendous advantage to a huge number of people and is so obvious that you wonder why its not been thought of before. So, from that perspective, I want to pass on an idea that combines LED technology with grandfather clock mechanics and results in gravity powered light that can replace dangerous and hazardous kerosene or other fuel-based lighting for the roughly 1.5 billion people who do not have electricity, the GravityLight.

The developers are giving the initial 1,000 unit production to African villages in 2013 and are seeking R&D funds to make a cheaper model which they hope could be purchased by villagers in Africa for less than $5. So for about the cost of three months worth of fuel, they could get a long-life, maintenance-cost-free alternative to the kerosene lamp.



Timothy (TRiG)
January 3rd, 2013 | LINK

Now that looks like a wonderful notion.


January 3rd, 2013 | LINK

This will no fly. See

January 3rd, 2013 | LINK

It’s a scam. You can get a little power from it, but not enough to be practical

Chris McCoy
January 3rd, 2013 | LINK

Reading the comments on both Pharyngula, and the blog he links to – sustainability workshop, a number of people have pointed out this is not a scam – Westerners are making a number of incorrect assumptions.

The inventors assume that people are familiar with the light produced by a kerosene lamp – which is nowhere near that produced by 60W incandescent bulb.

The light would work as advertised – it would produce approximately 30 minutes of light at near the same intensity as a kerosene lamp, which is not a lot by Western standards, but is still sufficient for simple tasks like reading.

This is about the same intensity of light as several clasp lamps sold to illuminate the original Amazon Kindle in bed at night.

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