Find number abcIf 57cc2 + 62ca9 = bb964b find number abc. Multiple solutions may exist.
Correct answers: 20
The first user who solved this task is Djordje Timotijevic.
First manned balloon ascentIn 1783, Frenchman Jean Pilâtre de Rozier (1754-1785) made a tethered balloon ascent, in the gardens of La Muette. The Montgolfier-made balloon, Aerostat Reveillon, carrying Pilâtre, first man to leave the earth, rose to the end of its 250- ft tether. It stayed aloft for15 minutes, then landed safely nearby. On 21 Nov 1783, untethered, Pilâtre and Marquis d'Arlande made the first manned free flight, across Paris. On 15 Jun 1785, Pilâtre attempt the first east-to-west crossing of the English Channel with a hybrid balloon combining lift from both hydrogen and hot air. Within minutes of launch, the craft exploded, and plunged to the rocks on the coast of Wimereux. Neither Pilâtre nor his co-pilot, Romain, survived the crash.