Solar Balloon

A solar balloon is a balloon that gains buoyancy when the air inside is heated by the sun's radiation, usually with the help of black or dark balloon material. The heated air inside the solar balloon expands and has lower density than the surrounding air. As such, a solar balloon is similar to a hot air balloon. Current usage of solar balloons is predominantly in the toy market, although it has been proposed that they be used in the investigation of planet Mars, and some solar balloons are large enough for human flight. A vent at the top can be opened to release hot air for descent and deflation.

Read more about Solar BalloonHistory, Manned Flight, First Antarctic Solar Weather Balloon Flight, Use in Outer Space, Safety, Gallery

Other articles related to "solar balloon":

Solar Balloon - Gallery
... A tube-shaped solar balloon made from garbage bags. ...

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