Portal:History of science/Selected anniversaries/April 9

April 9:

 * 1770 - Birth of Thomas Johann Seebeck, German physicist (d. 1831)


 * 1889 - Death of Michel Eugène Chevreul, French chemist (b. 1786)


 * 1928 - Birth of Tom Lehrer, American musician and mathematician


 * 1930 - Birth of F. Albert Cotton, American chemist (d. 2007)


 * 1932 - Birth of Jim Fowler, American zoologist


 * 1951 - Death of Vilhelm Bjerknes, Norwegian physicist (b. 1862)


 * 1953 - Warner Brothers premieres the first 3-D film, entitled House of Wax


 * 1957 - The Suez Canal in Egypt is cleared and opens to shipping


 * 2002 - Death of Leopold Vietoris, Austrian mathematician (b. 1891)