| Date | Text | |
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22 Mar 1960
Laser |
Laser In 1960, the first laser was patented (U.S. No. 2,929,922) by Arthur Schawlow and Charles Hard Townes under the title “Masers and Maser Communications System.” What distinguished this invention as the first laser is that it was the first to operate in the visible light spectrum. The patent was assigned to the Bell Telephone Laboratories, where they had done the research. |
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22 Mar 1960
Agnes Arber |
death Agnes Arber Died 22 Mar 1960 at age 81 (born 23 Feb 1879). British botanist (née Robertson) noted chiefly for her studies in comparative anatomy of plants, especially monocotyledons. Her interest in botany began in her schooldays in London. Her first book, Herbals: Their Origin and Evolution, published in 1912 and rewritten in 1938, became a standard textbook of the period. She was the first woman botanist to be made a fellow of the Royal Society, Britain's oldest and most important scientific society. Her later works were Water Plants: A Study of Aquatic Angiosperms (1920), Monocotyledons (1925), and The Gramineae: A Study of Cereal, Bamboo and Grass (1934). Arber also wrote, between 1902 and 1957, numerous articles on comparative anatomy. |
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22 Mar 1960
Arthur Leonard Schawlow |
Arthur Leonard Schawlow (physics) Arthur Leonard Schawlow and Charles Hard Townes receive the first patent for a laser. |
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