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Was a polish priest and mathematician, he denied the medieval belief from Ptolemy, that the Earth was the center of the universe. Copernicus developed a theory that the planets actually revolve around the sun (including Earth), it was called the heliocentric theory.

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Belgian physician and anatomist, he made seven books on the structure of the human body. His knowledge of human anatomy was more accurate than Greek scientist Galen.

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An English philosopher, his Novum Organum stresses the importance of proper scientific method.

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A mathematician and scientist, the first one to use telescopes for astronomy. He described the surface of the moon and the rotation of Jupiter's moons. Also he established basic laws of motion from experimenting. Anyways he was later on arrested from the Inquisition.

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A German mathematician and astronomer, after examining data from Tycho Brahe, he accepted the heliocentric theory. His New Astronomy and Harmony of the World explain the orbits of the planets are elliptical and not circular.

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English physician and anatomist, He discovered the circulation of blood and the purpose of the veins and heart.

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French philosopher and mathematician, developed analytic geometry and other mathematical techniques that are useful in theoretical science. He is mostly known for his philosophical work of "On the motion of the Heart and Blood of Animals." (1628)

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An Irish physicist and chemist, he investigated the properties of gasses. He also questions the belief of the world being made up of four elements, fire, water, earth, and air.

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Dutch physicist and astronomer, he proposed the wave theory of light. Also discovered Saturn's rings along with building the first pendulum clock.

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1632-1723 Anton van Leeuwenhoek (what a name dude.)

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1632-1723 Anton van Leeuwenhoek (what a name dude.)

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Dutch biologist, designed a microscope that's able to see bacteria and some other things that are microscopic. (like REALLY microscopic)

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THE English physicist and mathematician, he literally discovered the three laws of motion along with the law of gravitation after studying Kepler's laws of planetary motion. SIR Isaac Newton invented the reflecting telescope and developed calculus.

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French chemist, he explained how combustion can only occur when air is present.