Comment on Gravity Light - Alternative form of lighting to replace KeroseneparentComments−jimrandomh13yThat link is a survey of two towns, conducted in 2007. LEDs are a recent enough invention that 5 years is a very long time ago. And it asked "what is your primary fuel for lighting?", not "do you use fuel for lighting?"−DanBC13yI agree that my sources might be poor. But they are the best I have.I'd like to read any sources that you have.Do you have any sources?
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That link is a survey of two towns, conducted in 2007. LEDs are a recent enough invention that 5 years is a very long time ago. And it asked "what is your primary fuel for lighting?", not "do you use fuel for lighting?"
I agree that my sources might be poor. But they are the best I have.
I'd like to read any sources that you have.
Do you have any sources?