Learn about the history of science by reading about the significant scientific events that took place on July 10 in history.
1962 - Telstar 1 launched.
NASA launched the first of the Telstar series of satellites belonging to AT&T that were designed to relay television and telephone signals between the United States and Europe. Shortly after orbit was achieved, a test signal was sent from the U.S. ground station in Andover, Maine of the American flag outside the station with the Star Spangled Banner music. The French ground station at Pleumeur-Bodou received and sent back the signal to prove the system worked. The second test involved a long distance telephone call between Vice-President Lyndon Johnson and AT&T chairman Fred Kappel. This was the first time a satellite relayed a trans-Atlantic live television feed and the first time a telephone call routed through space.
1920 - Owen Chamberlain was born.
Lawrence Berkeley National Laboratory
Chamberlain was an American physicist who shares the 1959 Nobel Prize in Physics with Emilio Segrè for their discovery of the antiproton. An antiproton is an antimatter proton that will be completely annihilated when it encounters a proton. The have the same mass but opposite charge of a regular proton.
1910 - Johann Gottfried Galle died.
Galle was a German astronomer who was the first to identify the planet Neptune. While working at the Berlin Observatory, Galle received a letter from Urbain Le Verrier. This letter contained a calculated position where a planet should be that would explain the irregularities of the orbit of Uranus. Using this information, he found Neptune.
1902 - Kurt Alder was born.Alder was a German chemist who shares the 1950 Nobel Prize in Chemistry with Otto Diels for their development of diene synthesis, otherwise known as the Diels-Alder reaction. A diene is a hydrocarbon with two double bonds. The Diels-Alder reaction converts dienes and alkenes into ring molecules. It is important in the synthesis of many polymers, steroids and alkaloids.
1856 - Nikola Tesla was born.
Tesla was a Serbian-American engineer and inventor who pioneered the use of alternating current electrical systems. He also developed a wireless method to transmit electricity and attempted to construct a global transmission network before his funding ran out. He is largely responsible for the current use of AC power in the electrical industry. The SI unit of magnetic flux density is named in his honor.