A tree running in reverse

by wil — Sep 20, 2011

Most of the fuels we use derive their energy from trapped solar rays. In photosynthesis, sunlight and heat make chemical energy (in the form of wood or fossil fuel); fire uses chemical energy to produce light and heat. So a bonfire is basically a tree running in reverse.“20 Things You Didn’t Know About Fire”, Discover, Oct. 2011

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