The Solar Bag Balloon Project, Dec. 1, 2011
Watch this video of the 344 scientists "hard at play" learning about air density and how temperature affects gases.
(Click on the 4-arrow icon the bottom-right to watch a full-screen sized movie.)
We used a 30 foot long solar bag for this project, as well as four 8-foot solar bags. A solar bag is a long plastic bag made from a very thin plastic and colored black to absorb solar energy. The heated air inside the bag provides buoyancy and causes the bag to float.
We used a 30 foot long solar bag for this project, as well as four 8-foot solar bags. A solar bag is a long plastic bag made from a very thin plastic and colored black to absorb solar energy. The heated air inside the bag provides buoyancy and causes the bag to float.