Quote of the day
Like stones rolling down hills, fair ideas reach their objectives despite all obstacles and barriers. It may be possible to speed or hinder them, but impossible to stop them.
Henrietta Swan Leavitt
Born: July 4, 1868
Died: December 12, 1921 (aged 53)
Bio: Henrietta Swan Leavitt was the American astronomer who discovered the relationship between the luminosity and the period of Cepheid variable stars. She made this discovery, among others, while employed at the Harvard College Observatory as a human computer examining photographic plates to measure and catalog the brightness of stars.