What did Galileo Galilei discover?

The discoveries of Galileo Galilei transformed the world and that is not an exaggeration. Thanks to his work we know what the surface of the moon is like. With his observations, he demonstrated that our planet revolves around the sun, as Copernicus defended and is recognized as one of the promoters of the Renaissance scientific revolution . Let's get to know better what Galileo Galilei discovered and why he is considered one of the fathers of science and his modern methodology.

Galileo Galilei: what was his life?

As a good man of the Renaissance, Galileo was a multidisciplinary scientist. He is also known for his passion for art, a taste inherited from his father, a musician and composer. Galileo was born in Pisa, Italy, in the year 1564.

He began his university career in Pisa studying medicine, but abandoned these studies when he discovered mathematics and the physical.

Padua was the city in which Galileo achieved most of his milestones and discoveries despite the economic problems that followed him. In Padua he combined his classes at the university with the regency of a student pension. Galileo's lectures were highly appreciated thanks to his brilliance and the demonstrations he prepared for his students. His studies focused on astronomy, mathematics and physics.

The Inquisition persecuted Galileo for defending the heliocentrism and was forced to retract his claims about the movement of the stars and the theory that the earth revolves around the sun.

Galileo Galilei died in 1642 in his retirement in the town of Aresti and almost blind . He bequeathed to humanity important discoveries and inventions such as telescopes or microscopes .

Discoveries of Galileo Galilei

The moon has mountains

Among the most important discoveries of Galileo Galilei are the advances he achieved in his observation of the stars and he is considered the father of modern astronomy. When he learned of the existence of a telescope invented in Holland, he set out to improve its scope and designed a series of lenses with which he was able to see the stars up close.

Despite the fact that the classical theory of celestial bodies described them as perfect and smooth spheres, Galileo observed that the moon has an irregular surface, full of craters, plains and mountains.

He also discovered the major satellites of Jupiter and studied the sunspots .

See the invisible

His work with lenses led him to invent a spyglass and an antecedent of the microscope, which he named ochiollino.

Scientific method

Galileo studied the great classical authors and their contemporaries and soon understood the need to put into practice scientific theories in order to validate or refute them. His interest in experimentation led him to create the foundations of the scientific method.

Legend says that Galileo disproved the theory of Archimedes which defended that heavier objects fall faster, throwing different weights from the famous Campanile from Pisa. According to this legendary anecdote, at that moment modern science was born.

You already know who Galileo Galilei was and his most important discoveries, which represented a revolution and a change of mentality that was not understood by all sectors of society at the time

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