@luciaceePeople laughed when Dr. Robert H. Goddard said a rocket could fly through a vacuum. His first attempts with solid and liquid propellants mostly blew apart on the pad or hopped a few feet. Years of quiet, cash-starved tinkering followed, and then on March 16, 1926, a rocket he called Nell climbed roughly 41 feet and stayed up 2.5 seconds. That's not much airtime, but the patents and methods behind it became the blueprint every modern rocket still follows
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