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historicalmarkerproject/markers/HM2C0J_throop-memorial-garden_Pasadena-CA.html
Left Panel: This was once the site of Throop Hall, named after the founder of Throop University, Amos G. Throop. Throop University was founded in 1891 and became the California Institute of Technology in 1920. Built in 1910, Throop Hall was the fi…
historicalmarkerproject/markers/HM2BXH_iris-garden_Pasadena-CA.html
In memory of Alfred Henry Sturtevant, Geneticist and Naturalist, Professor of Biology at the California Institute of Technology from 1928 to 1970.
These iris resulted from genetic studies he made between 1952 and 1969.
historicalmarkerproject/markers/HM2BX4_the-first-known-antiparticle_Pasadena-CA.html
Near this site, in August 1932, Carl David Anderson photographed the track of a cosmic ray particle in his cloud chamber. He identified this particle as the positron — the first known antiparticle.
Historic Physics Site, Register of Histor…