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Famous Firsts in Aviation |
 | | Jacques A. Charles, Paris physicist, supervised construction by A. and M. Robert of a 13-foot-diameter balloon that was filled with hydrogen. |
 | | A rip in the bag during inflation brought the collapse of the balloon and the project. |
 | | , a Swiss physicist, and Charles Knipfer ascended in a balloon from Augsburg, Germany, and reached a height of 51,793 ft in a 17-hr. |
| www.factmonster.com /ipka/A0004537.html (2997 words) |
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