Sidney Bolton Kincaid (1849-1898)

Designed a Metrochome apparatus which allowed astronomers to reproduce the color of stars and derive their composition.

Astronomy September 2018 p. 52

Armand Hoppolyte Louis Fizeau (1819-1896)

French physicist known for his calculation of the speed of light (to within 5 percent accuracy); he discovered independently that the Doppler effect applied to electromagnetic waves.

Astronomy September 2018 p. 52

Christian Doppler (1803-1853)

Austrian mathematician and physicist, best known for the Doppler principle relating wavelength (frequency) to motion.

Astronomy September 2018 p. 52

Christoph Hendrik Diedrik Buijs-Ballot (1817-1890)

Dutch meteorologist who tested Doppler's principle using musicians and a moving train.

Astronomy September 2018 p. 52

George Airy (1801-1892)

British astronomer and mathematician who served as the seventh Astronomer Royal and defined the prime meridian at the Royal Observatory Greenwich, which he also directed.

Astronomy September 2018 p. 52

Groucho Marx

Did you know... 
... that October 2 is Eyebrow Day? Celebrate Groucho Marx's birthday (1890) by trimming your eyebrows. Or not! Julius Henry "Groucho" Marx was an American comedian and film and television star. He is known as a master of quick wit and widely considered one of the best comedians of the modern era. 

Annelies Marie “Anne” Frank

(12 June 1929 – ? March 1945) (aged 15) One of the most renowned and most discussed Jewish victims of the Holocaust. Acknowledged for the quality of her writing, her diary (which documents her experiences hiding during the German occupation of the Netherlands in World War II) has become one of the world’s most widely read books, and has been the basis for several plays and films…