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...
The Great Pyramid At Giza (7 Wonders)
The Great Pyramid At Giza (7 Wonders) - For thousands of years, ancient Egypt was ruled by kings called pharaohs. For much of that time, Eg...
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, ...
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...
Stephanie Kwolek: Inventor of Kevlar
Stephanie Kwolek: Inventor of Kevlar Sometimes when a scientist makes a discovery, its nature and usefulness are not immediately clear. T...
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...
