Scientist of the Day

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...

Paul E. (Ed) Yost, an American engineer, inventor, and aviator, was born in Bristow, Iowa on June 30, 1919.

The Farnese Atlas is a marble Roman statue sculpted around 150 C.E. and now in the Archaeological Museum in Naples. Its name comes from the fact...

John Stevens III, an American inventor and public official, was born June 26, 1749, in New York City. He was perhaps the most inventive of the...

Franchino Gaffurio, an Italian composer and music theorist, died June 25, 1522, at the age of 71. Gaffurio was the Maestro di cappella at the...

The Great Refractor, a telescope at Harvard College Observatory (HCO) saw its "first light" on June 24, 1847, meaning it was ready to view and/or...

Liu Cixin, a Chinese science fiction author, was born June 23, 1963, in Beijing. He grew up in Shanxi province in northern China during ...