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Sep 8, 1543
The heliocentric model-Nicolaus Copernicus
Nicolaus Copernicus invented the heliocentric model, the heliocentric model, centered around the sun. He claimed that all the planets, including Earth, moved in orbits around the sun, and showed how this new system could accurately calculate the positions of the planets. -
Earth's magnetic field
William Gilbert discovered the Earth's magnetic field, he proposed that the Earth acts like a big magnet whose field aligns the small magnet used as a compass needle. -
The Moon is observed.
Galileo observes the Moon. He discovered the Moon had mountains, valleys, and plains like the Earth. He called the dark regions of the Moon maria, the Latin word for seas. -
The Mercury Barometer
Vangelista Torricelli invents the mercury barometer -
The electric battery
Alessandro Volta invented the electric battery -
X-rays
Wilhelm Conrad Röntgen invented the X-ray -
The Big Bang
Georges Lemaître discovered the theory of the Big Bang -
The chromosome
Oswald Avery proves that DNA is the genetic material of the chromosome -
Men Land on the Moon
Astronauts Edwin Aldrin and Neil Armstrong land on the Moon. -
Hubble Space Telescope
Hubble Space Telescope put into orbit from space shuttle Discovery.