Black Walnut, “Juglans nigra”, is a species of deciduous tree in the walnut family, Juglandaceae, native to North America. This stately forest tree ranges from Massachusetts to Minnesota and...
François Chabot was a French revolutionary born in Saint-Geniez, France, on October 23, 1756. In childhood, he entered the Capuchin order. His interest in...
How did Andrew Carnegie make his fortune? Andrew Carnegie was a famous American iron master, manufacturer, and philanthropist. He was born in Dunfermline, Scotland,...
Thomas Carlyle was a famous Scottish critic, philosopher, and historian. He was born at Ecclefechan, Dumfriesshire, on 4 December 1795. A leading Victorian writer,...
History of Sonar, an Underwater Listening Device
On January 9, 1917, Kaiser Wilhelm II of Germany gave the order for unrestricted submarine warfare to commence....