Sputnik 1 (/ˈspʌtnɪk, ˈspʊtnɪk/; see § Etymology) was the first artificial Earth satellite. It was launched into an elliptical low Earth orbit by the USSR on 4 October 1957 as part of the Soviet space program. It orbited for three weeks before its batteries ran out. The satellite then silently continued to orbit the planet for two months before it fell back into the atmosphere on 4 January 1958.
invented by Wallace Carothers
Nylon is a generic designation for a family of synthetic polymers composed of…
invented by Friedrich Bergius
The Bergius process is a method of production of liquid hydrocarbons for use as…
invented by Wernher von Braun
The V-2 (German: Vergeltungswaffe 2, “Retribution Weapon 2”), with…
invented by Konrad Zuse
The Z1 was a motor-driven mechanical computer designed by Konrad Zuse from 1936…
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