History of The Panama Canal in Central America
History of The Panama Canal in Central America - The panama canal creates one of the longest shortcuts in the world. Before it was built, ...
Margaret Knight: Inventor of The Flat-bottomed Paper Bag Machine
Margaret Knight: Inventor of the flat-bottomed paper bag machine (1838-1914) Margaret Knight was fascinated by machinery; she eventually...
Hans Lippershey: Inventor of The Telescope (1570-1619)
Hans Lippershey: Inventor of The Telescope (1570-1619) Hans Lippershey is often credited with inventing the telescope because he was the...
Albert Calmette: Inventor of The Tuberculosis Vaccine
Albert Calmette was born in Nice, France, on July 12, 1863. He had two brothers, one of whom became an army physician, and the other, a jo...
