-
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.
-
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.
-
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.
-
René Descartes dicovered the Scientific Method in 1637
-
Evangelista Torricelli invents the mercury barometer
-
Using a telescope he made, Huygens first identified Saturn's rings and one of Saturn's moons.
-
1666-Sir Issac Newton discovered the Law of Gravity. This is seen to be the start of Modern Astronomy.
-
Anton van Leeuwenhoek discovered micro-organisms in pond water
-
Ole Rømer did the first measurement of the speed of light
-
Ewald Jürgen Georg von Kleist invented the Leyden jar
-
William Herschel discovers Uranus. While measuring the directions and brightnesses of stars, Herschel found a fuzzy spot that moved among the stars. This was Uranus, the first planet that was not known to the ancients.
-
Alessandro Volta invented the electric battery
-
William Morton discovers anesthesia.
-
Dmitri Mendeleev established the Periodic table
-
Wilhelm Conrad Röntgen invented the X-ray
-
Henry Moseley: defined atomic number
-
Georges Lemaître discovered the theory of the Big Bang
-
Oswald Avery proves that DNA is the genetic material of the chromosome
-
Astronauts Edwin Aldrin and Neil Armstrong land on the Moon.
-
Hubble Space Telescope put into orbit from space shuttle Discovery.
-
Roslin Institute cloned Dolly the sheep using the process of nuclear transfer.
