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Talk about a green solution, not to mention this light would be great in emergency situations....
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GravityLight doesn't need to be recharged through solar cells. It doesn't use batteries at all. It's powered by the same force that keeps our feet on the ground. A weight attached to the light takes 3 seconds to lift up, but provides 30 minutes of light as it descends.
Nice. Esp if you have 20 children lined up every 30 minutes through the night, to pick that weight up. Cool idea though.
I like old hand cracked flash lights. Not ones with the crank handle, squeeze type. Good exercise too. Gives you hell of a grip.
That is a really neat concept much like a grandfather clock. We in America really take electricity for granted and it isn't until the power goes out like it did for us during that blizzard last week. We were out for 2 days and you forget how dark it gets at night. We had candles, flashlights, a wind up lantern, a wind up radio and a woodstove to stay warm by and cook on. Living like that does give pause to think how half the world sleeps on the ground and might not have eaten that day.
I wonder what else could be powered with this concept?
What is the Difference between a third world country and an advanced country?
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Today, the term "third world" is no longer used very much as it has been deemed politically incorrect by many. The term actually originated after WWII, when the Third World referred to countries that were neither communist nor capitalist and were therefore "up for grabs." Many of these countries were in Central/South America, Africa and Asia. As a result, third world is now synonymous with "developing world" or "global south." This basically means that a country has a lower per capita income, and has less developed industries and infrastructure (healthcare, education system, roads, etc.) Many "third world" countries struggle heavily with debt, poverty, and diseases.
The "advanced" countries are generally referring to places like the United States, Western Europe, Canada, Australia, etc. These countries generally have a high per-capita income, developed national industries, high levels of education, higher life expectancy, more civil and political rights and a general higher quality of life.
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