Christian Huygens was born in 1629 in the Dutch Republic. His father was friends with Meressene and Descarte. Huygens discovered the rings of Saturn in 1655. He invented the pendulum clock in 1656.
John Wallis invented the infinity symbol and aided the Cromwell Puritans. Calculus is the mathematical study of change. "Calculus" means a small pebble used for counting.
Robert Hooke published his microscope experiments in 1665. Anton Von Leeuwenhoek did not go to college. A doctor friend introduced him to the Royal Society. His discoveries started the science of microbiology.
Isaac Newton studied natural philosophy in college. Newton ruled the Royal Society for 25 years with an iron fist. Newton's science proved an alternative worldview. He came up with the laws of motion and gravity.
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Flash Memory, CD-ROM, Cellular Phone, The World Wide Web
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