Scientist of the Day

Henri Poincaré, a French mathematician, theoretical physicist, and philosopher of science, died July 17, 1912, at the relatively young age of 58...

On Thursday, July 16, 1925, the Scopes trial moved into its fifth day. Clarence Darrow, special counsel for the defense, had given one major...

Carl R. Woese, an American microbiologist, was born July 15, 1928, in Syracuse, New York.

Ambrogio Soldani, an Italian monk and naturalist, died July 14, 1808, at age 72. Nine years ago, we wrote a post on the shower of stones that fell ...

Giuseppe Arcimboldo, an Italian painter, died July 11, 1593, at age 66. He was born in Milan on Apr. 5, 1527. Arcimboldo was 35 years old when he...

The Scopes trial began exactly a century ago, on this day, July 10, 1925, in a county courthouse in Dayton, Tennessee. The Scopes trial is one of...

According to legend, the first stone of the Charles Bridge in Prague was laid by Emperor Charles IV on July 9, 1357, at 5:31 in the morning. The...

Sin-itiro Tomonaga, a Japanese physicist, died on July 8, 1979, at the age of 73; he was born in Tokyo in 1906.

Opportunity, the second of two Mars Exploration Rovers, was launched on July 7, 2003. It landed on Mars on Jan. 25, 2004, in an area on the Martian...

Antonio de Ulloa, a Spanish military officer, geodesist, and astronomer, died July 3, 1795, at the age of 79. Ulloa was only 19 years old and still...

Robert Ridgway, an American ornithologist, was born July 2, 1850, in Mount Carmel, Illinois.  He began drawing birds at an early age.  At the age...

Christophe Plantin, a French printer, died July 1, 1589, at the age of about 69.  Plantin is sometimes referred to as a humanist printer, but he...