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Automatische Übersetzung:
Diagram depicting Robert H. Goddard's rocket in its original form. The nose had a percussion cap and a charge of magnesium flash powder. The idea was that when the rocket hit the moon, an observer using a 12-inch reflector on earth could see the flash. Robert H. Goddard (1882-1945) an American engineer, professor, physicist, and inventor. Dated 20th century.