Earth and the Environment

What is a tetroon?

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The tetroon is a tetrahedral balloon used for horizontal sounding. It was developed to withstand the extremely low pressures of high-altitude flight; the straight seals joining its four triangular faces are stronger than the curved seals of the more traditionally shaped balloons.

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Similar questions: Why was the tetroon developed? How is a tetroon equipped to handle high-altitude flight? What is another name for a tetrahedral balloon? [ Hide these questions ]

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