Galileo Galilei

Feb 15, 1564 - Jan 8, 1642

Galileo di Vincenzo Bonaiuti de' Galilei was an astronomer, physicist and engineer, sometimes described as a polymath, from Pisa, in modern-day Italy. Galileo has been called the "father of observational astronomy", the "father of modern physics", the "father of the scientific method", and the "father of modern science".
Galileo studied speed and velocity, gravity and free fall, the principle of relativity, inertia, projectile motion and also worked in applied science and technology, describing the properties of pendulums and "hydrostatic balances". He invented the thermoscope and various military compasses, and used the telescope for scientific observations of celestial objects. His contributions to observational astronomy include telescopic confirmation of the phases of Venus, observation of the four largest satellites of Jupiter, observation of Saturn's rings, and analysis of sunspots.
Galileo's championing of Copernican heliocentrism was met with opposition from within the Catholic Church and from some astronomers.
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“The Bible shows the way to go to heaven, not the way the heavens go.”

Galileo Galilei
Feb 15, 1564 - Jan 8, 1642
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