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Period: 1 CE to
Small Scale
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6
Hominids Appeared
the first people of life formed -
85
Claudius Ptolemy (85 CE - 165 CE)
ancient astronomer, geographer, and mathematician
idea of geocentric view -
276
Eratosthenes (276 BC - 194 BC)
calculated the earth's circumference -
1473
Nicolaus Copernicus (1473 - 1543)
astronomer, mathematician, translator, artist, and physicist
idea of heliocentric view -
1546
Tycho Brahe (1546 - 1601)
accurate and comprehensive astronomical and planetary observations
showed irregularities in the Moon's orbit -
1561
Francis Bacon (1561 - 1626)
father of empiricism
promotion of the scientific method
science should be based on experiments -
1564
Galileo Galilei (1564 - 1642)
discovered Jupiter's 4 moons
"father of modern science" -
1571
Johannes Kepler (1571 - 1630)
laws of planetary motion
planets moved in elliptical orbits -
Rene Descartes (1596 - 1650)
his theory on the separation between the mind and the body
invented analytical geometry
introduced skepticism as an essential part of the scientific method -
John Locke (1632 - 1704)
all men are created equal
believed that human nature allowed people to be selfish
distinction between primary and secondary qualities explain the disagreements we have about our perceptions about the world -
Isaac Newton (1643 - 1727)
discovered gravity
3 laws of motion -
Dmitri Mendeleev (1834 - 1907)
created the periodic table of elements -
Marie Curie (1867 - 1934)
discovered polonium and radium -
Henrietta Leavitt (1868 - 1921)
discovery of the relationship between period and luminosity in cepheid variables -
Alfred Wegener (1880 - 1930)
continental drift theory -
Edwin Hubble (1889 - 1953)
idea of the universe expanding -
Harry Hess (1906 - 1969)
proposes sea-floor spreading
discovered that hundreds of flat-topped mountains, perhaps sunken islands, shape the pacific floor -
Present Day