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Period: 276 BCE to 194 BCE
Eratothenes
- first to find the accurate measurement of the circumference of the Earth
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Period: 100 to 170
Ptolemy
- one of the first modern scientists and astronomers
- created the geocentric view
- presented details for the motions of each of the planets
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Period: Feb 19, 1473 to May 24, 1542
Copernicus
- challenged Ptolemy's geocentric view
- created the heliocentric view
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Period: Dec 14, 1546 to
Brahe
- contributed to the heliocentric view
- helped with fixing the positions of stars
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Period: Jan 22, 1561 to
Bacon
- created the scientific method
- created empiricism
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Period: Feb 15, 1564 to
Galileo
- supported the heliocentric view with mathematical evidence
- invented a revolutionary telescope that could see past the heavens
- known as the father of observational astronomy
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Period: Dec 27, 1571 to
Kepler
- discovered the three laws of planetary motion
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Period: to
Descartes
- discovered Cartesian Skepticism
- invented analytical geometry
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Period: to
Locke
- believed all knowledge is obtained through experiences and that we are all born knowing nothing
- agreed with Descartes
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Period: to
Newton
- discovered gravity
- created the three laws of motion
- came up with the theory that all the planets had elliptical orbits around the Sun
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Period: to
Mendeleev
- known as the father of the modern periodic table
- rearranged the elements into a table we use today
- inspired by solitaire
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Period: to
Curie
- discovered 2 elements: Polonium and Radium
- one of the only female scientists
- won 2 Nobel prizes
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Period: to
Leavitt
- discovered Cepheid variables
- discovered about 2,400 variable stars
- discovered that some variable stars have a consistent brightness no matter where it's located
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Period: to
Wegener
- known for his theory of continental drift
- used continents fitting together with other continents as evidence
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Period: to
Hubble
- named after the Hubble telescope
- helped prove that the universe is expanding
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Period: to
Hess
- known for his theory of seafloor spreading
- used his theory as evidence for continental drift