Re: Greenhouse


Someone asked about a greenhouse, well basically the light rays from the sun 
get through the glass easily, but when absorbed by the ground, etc., under 
the glas, it is converted into heat waves, which are too short to go through 
glass, so it gets trapped. Then all night the heat is trapped inside and also 
gradually radiated back out from the ground and water. Although in really 
cold winter, most greenhouses have heaters.

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