The History of Cosmic Ray Studies
1600 - 1699
- c. 1600
Galileo determined the approximate density of low-level air.
- William Gilbert publishes "De Magnete", stating that the Earth
- Giordano Bruno, after eight years of imprisonment, was charged with blasphemy, immoral conduct, and heresy for challenging the official church doctrine on the origin and structure of the universe and was burned at the stake in Campo dei Fiori, Italy.
- Johannes Kepler published De Stella Nova ("Concerning the New Star") on the new "star" that had appeared in 1604, a supernova in Ophiuchus.
- Galileo Galilei, Thomas Harriot, Christoph Scheiner, and father-and-son David and Johannes Fabricius observed sunspots. Image of the Sun with sunspots is courtesy of NASA.
- Galileo Galilei stated his support for Copernicus' heliocentric theory. He was later brought before the Inquisition, and officially withdrew his heliocentric model of the universe.
Olaus Roemer measured the speed of light by observing Jupiter's moons. Image of Jupiter is courtesy of NASA.
- Sir Isaac Newton published his revolutionary Philosophiae Naturalis Principia Mathematica establishing the theory of universal gravitation, considered to be a turning point in the history of science.
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