Ary Abramovich Sternfeld
Ary Sternfeld (* 14 May 1905, Sieradz, Poland – † 5 July 1980, Moscow, Russia) was co-creator of the modern aerospace science. He was a Jewish engineer of Polish origin, who got his education in France. From 1935 until his death he worked in Moscow.He was the first person to describe the bi-elliptic transfer technique of changing orbits, in 1934.
Personal facts
| Birth date | May 14, 1905 |
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| Date of death | July 05, 1980 |
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