This Day in Geek History: December 15
1612
Simon Marius becomes the first person to observe the Andromeda galaxy through a telescope. He will describe his discovery in the preface to his Mundus Jovialis as, “like the flame of a candle seen through horn.”
1877
Thomas Alva Edison files for a patent on the phonograph.
1958
Arthur L. Schawlow and Charles H. Townes publishes “Infrared and Optical Masers” describing what will later be known as the laser (Light Amplification by Stimulated Emission of Radiation) while employed at Bell Labs. Read the original document here.
1964
The first Italian satellite, San Marco 1, is launched.
1965
Gemini 6A, crewed by Wally Schirra and Thomas Stafford, is launched from Cape Kennedy, Florida. Four orbits later, it achieves the first space rendezvous with Gemini 7. The two crafts orbit the Earth together for over five hours.
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