A solar balloon is a miniature hot air balloon, heated entirely by the sun.It's made of black plastic, and the black color easily absorbs heat radiating from the sun. This in turn heats up the air inside the balloon, turning a plain plastic balloon into a high-flying miniature hot air balloon within seconds.
-is that a solar balloon?

-yea' dude it's made up from five plastic bags.Want to help me make a bigger one?
-sure thing!
by solo_sabbath April 09, 2010

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