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An American scientist who while building electromagnets discovered the electromagnetic phenomenon of self-inductance, discovered mutual inductance, also he is an inventor of the electric doorbell (1831) and relay (1835).
A German physicist who clarified and expanded James Clerk Maxwell's electromagnetic theory of light, which was first demonstrated by David Edward Hughes using non-rigorous trial and error procedures. Hertz is distinguished from Maxwell and Hughes because he was the first to conclusively prove the existence of electromagnetic waves by engineering instruments to transmit and receive radio pulses using experimental procedures that ruled out all other known wireless phenomena. The scientific unit of frequency — cycles per second — was named the "hertz" in his honor.
An English physicist, born in Salford, Lancashire. Joule studied the nature of heat, and discovered its relationship to mechanical work. This led to the theory of conservation of energy, which led to the development of the first law of thermodynamics. The SI derived unit of energy, the joule, is named after him.
Chinese, British and American scientist, engineer-physicist, winner of the Nobel Prize in Physics (2009) for achievements in the field of light transmission over fiber optic channels, known as the "Father of fiber communications."
American electrical engineer who took part in the realization of the first integrated circuit while working at Texas Instruments (TI) in 1958.
He is also the inventor of the handheld calculator and the thermal printer, for which he has patents. He also has patents for seven other inventions.
Jules Antoine Lissajous made numerous works on acoustics and optics. He studied vibrations of thin plates and wave propagation. In 1855 he developed an optical method for studying the addition of oscillations using so-called "Lissajous figures".
Ada Lovelace is an English mathematician best known for her work on Charles Babbage’s analytical engine. She became the first person to realize that this device is capable of more than elementary calculations, and she was also the first one to publish an algorithm designed for this machine.
Inventor and electrical engineer, known for his creation of a practical radio wave-based wireless telegraph system.
Scottish mathematical physicist. His most prominent achievement was to formulate a set of equations that describe electricity, magnetism, and optics as manifestations of the same phenomenon, namely the electromagnetic field. Maxwell's achievements concerning electromagnetism have been called the "second great unification in physics", after the first one realised by Isaac Newton.
American physicist known for the invention of the Michelson interferometer and precision measurements of the speed of light.
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