Nikola Tesla invented the alternating current electrical system and the Tesla coil. He also discovered radar and X-ray technology and the rotating magnetic field.
The rotating magnetic field is the backbone of alternating current machinery in modern day. Tesla developed and patented his alternating current electrical system, which successfully competed with Thomas Edison's system, and later sold it to George Westinghouse. Tesla's power system is still used worldwide today. He also invented the Tesla coil in 1891, an apparatus that uses capacitors and inductors to produce alternating currents and led to many new developments in radio technology. Tesla planned a hydroelectric plant for Niagara Falls and attempted to build a large information sharing system with an electrical tower, but financial issues kept him from success.Learn More
Albert Einstein worked in the fields of mathematics and physics, and most of his contributions were in terms of academic theory. There is, however, a refrigerator that bears his name, and he had also developed a compass, a gyrocompass and a hearing aid.Full Answer >
Italian astronomer Galileo Galilei was the inventor of the first pendulum clock, after his discovery of isochronism, which is the time that the pendulum takes to swing. Contrary to popular belief, Galileo was not the inventor of the telescope; Galileo built a telescope based on creations by the Dutch, and it was known as a spyglass. Galileo also built a thermometer and a compass during his lifetime.Full Answer >
Polish astronomer Nicolas Copernicus, considered the father of modern astronomy, is also, for all intents and purposes, the inventor of the globe. To illustrate his belief that the Earth was spherical, Copernicus built globes and terrain models called armillary spheres. These constructions were the first globes.Full Answer >
Regarded as one of the greatest mathematicians of all time, Archimedes invented a method known as Archimedes’ principle. It is a method used for determining the volume of an asymmetrical object. Archimedes of Syracuse was a mathematician, inventor and engineer from Ancient Greece.Full Answer >