The balloon weighed over 5,000 pounds, with two and a half acres of cotton fabric glued together using 300 gallons of rubber cement. Lifting the contraption required 3 million cubic feet of ...
Art Thompson:There's a series of nylon strings that run through that balloon material to be able to carry the weight. 801:01:26:02 01:01:31:20Narrator:As the balloon climbs, the helium expands ...
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