Galileo Galilei, Italian Polymath

Engraving of Galileo Galilei (1564 - 1642), Italian scientist, illustrating him first noticing how a pendulum swings. In 1582, while Galileo was studying medicine in Pisa, he noticed a lamp swinging as a simple pendulum in the city's cathedral. His observation that it took the same amount of time for the lamp to do one swing regardless of how far it swung led him to perform experiments. These experiments demonstrated that the period of a pendulum swing is determined by its length

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1564 1642 Astronomer Astronomical Copernican Cosmologist Cosmology Developer Discovered Discoverer Galilei Galileo Gravity Heretic Heretical Improved Inquisition Jupiter Lunar Mathematician Mathematics Moons Observational Pendulum Philosophy Polymath Telescope Theory

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