Physicists 16th century
Galileo Galilei was an Italian naturalist, physicist, mechanic, astronomer, philosopher, and mathematician.
Using his own improved telescopes, Galileo Galilei observed the movements of the Moon, Earth's satellites, and the stars, making several breakthrough discoveries in astronomy. He was the first to see craters on the Moon, discovered sunspots and the rings of Saturn, and traced the phases of Venus. Galileo was a consistent and convinced supporter of the teachings of Copernicus and the heliocentric system of the world, for which he was subjected to the trial of the Inquisition.
Galileo is considered the founder of experimental and theoretical physics. He is also one of the founders of the principle of relativity in classical mechanics. Overall, the scientist had such a significant impact on the science of his time that he cannot be overemphasized.
William Gilbert was a British physicist and medical scientist famous for pioneering the study of magnetic and electrical phenomena.
After receiving a medical degree, Gilbert settled in London and began his research. In his major work De Magnete, Magneticisque Corporibus, et de Magno Magnete Tellure (On Magnetic Stones and Magnetic Bodies and the Great Magnet of the Earth), published in 1600, the scientist describes in detail his studies of magnetic bodies and electric attraction.
After years of experimentation, he came to the conclusion that the compass arrow points north-south and downward because the Earth acts as a rod magnet. He was the first to use the terms electric attraction, electric force, and magnetic pole. Gilbert came to believe that the Earth rotates on its axis and that the fixed stars are not all the same distance from the Earth, and believed that the planets are held in their orbits by magnetism.
