Author: Douglas Ho Perge or Perga, located 19 km east of Antalya, used to be one of the most important cities of ancient Pamphylia. Its most notable son was Apollonius, a mathematician and an astronomer who who gave the ellipse, …
Author: Sings in the city http://signsinthecity.net Nafplio through time Nafplio is one of the most charming and historic cities in Greece, having played a significant role both in ancient and modern history of the region and the country. Nafplios, son …
Video source Transcript Mary W. Jackson was the first African-American female engineer at NASA. Now NASA is naming its headquarters in Washington, DC after her. Mary was a mathematician and an aerospace engineer who was part of a group of …