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.
Related
Integrated circuit
invented by Jack Kilby Robert Noyce
An integrated circuit or monolithic integrated circuit (also referred to as an…
Kaplan turbine
invented by Viktor Kaplan
The Kaplan turbine is a propeller-type water turbine which has adjustable…
Diode
invented by John Ambrose Fleming
A diode is a two-terminal electronic component that conducts current primarily…
Liquid fueled rocket
invented by Robert H. Goddard
A liquid-propellant rocket or liquid rocket utilizes a rocket engine that uses…
Suggest an invention you think it should be here
About
Inventions that changed the world
Leave a Reply