* Invented by Thomas Savery
* First practical steam engine used to pump water out of mines
Barometer (1643)
* Invented by Evangelista Torricelli
* First scientific instrument to measure atmospheric pressure
Air pump (1650)
* Invented by Otto von Guericke
* First experimental vacuum pump
Microscope (1665)
* Invented by Robert Hooke
* First microscope capable of magnifying objects up to 300 times
Telescope (1608)
* Invented by Hans Lippershey
* First telescope capable of magnifying objects up to 20 times
Calculus (1665-1666)
* Developed by Isaac Newton and Gottfried Leibniz
* Mathematical system for studying change
Printing press (1455)
* Invented by Johannes Gutenberg
* First mechanical printing press
Gunpowder (13th century)
* Invented in China
* First explosive used in warfare
Compass (13th century)
* Invented in China
* First navigational instrument used to indicate direction
Paper (105 A.D.)
* Invented in China
* First material used for writing and printing