Sunday, July 12, 2009
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Build a little hot air balloon: the tea bag experiment
Using a simple tea bag is possible make a little hot air balloon, see the video instructions.
The fire heat the air inside the balloon, hot air is less dense than cold air, result: a buoyancy force greater than the weight will make the balloon fly.
The fire heat the air inside the balloon, hot air is less dense than cold air, result: a buoyancy force greater than the weight will make the balloon fly.
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