Charles de Coulomb was a French physicist and scientist who contributed greatly to modern physics' understanding of certain forces of attraction and repulsion. He was born in 1736 and made several pioneering discoveries about the nature of forces and of friction. Coulomb is perhaps most famous for the law named after him, Coulomb's Law, which describes the electrostatic interaction between different charged particles using mathematical expressions such as inverse squares.
As a young man, Charles de Coulomb studied mathematics in the Collège des Quatre-Nations in Paris. He did not immediately enter the field of mathematics and physics, however, instead opting to join the military. In military school, he studied engineering. For several years, he worked as a designer of buildings and helped determine the various properties of soil and terrain. In this time he traveled all over France. In fact, while he was overseeing construction of a fort, he began to have some of his first thoughts on friction. Eventually, he wrote a paper on his frictional findings.
After a falling out with the French government, Coulomb devoted his life primarily to physics. He worked in a number of different fields, but he focused mostly on electricity and magnetism. The discoveries he made have been vital to modern understandings of electric attractive forces.Learn More
In the equation E=mc², e stands for energy, m stands for mass and c² stands for the speed of light squared. First proposed by Albert Einstein, this equation demonstrates that energy and matter are interchangeable.Full Answer >
Radiation is emitted as an unstable atom decays to become a lighter element. Radiation, therefore, persists for as long as the unstable isotope remains present. Unstable isotopes emit radiation only once per decay, though they can decay several times.Full Answer >
Albert Einstein was born in Germany in 1879 to Jewish parents. Einstein attended a public German school, and he was also taught Judaism and given violin lessons at his home.Full Answer >
Superstring theory is an attempt to unite the various string theories that have been suggested since the 1960s in a single, comprehensive explanation of observed phenomena in physics. String theories assume that, in place of elemental particles, the matter in the universe is made up of one-dimensional strings that are very short and carry high values of energy.Full Answer >