German astronomer and student of Johann Gottfried Galle who is known for contributions in the discovery of the planet Neptune. After receiving the calculations by French mathematician, Urbain Le Verrier, the two German scientists pointed the telescope and observed the planet Neptune for the first time. This is regarded as an important turning point in 19th Century astronomy.
FYI, Neptune had first been observed by Galileo Galilei, but the great Italian astronomer had classified it as a fixed star.
Gmail ran for more than 5 years with the beta tag. It was removed on the 7th of July 2009.Google had launched their free email service on 1st April 2004 with 1 GB storage space. This was 20 times more than what was being offered by the competition at that time. [more...]