Wilhelm Conrad Röntgen was a German physicist, of the University of Würzburg, who, on November 8, 1895, produced and detected electromagnetic radiation in a wavelength range today known as x-rays or Röntgen Rays. Röntgen's discovery of x-ra...

Thomas Alva Edison was an American inventor and businessman who developed many devices which greatly influenced life in the 20th century. Dubbed "The Wizard of Menlo Park" by a newspaper reporter, he was one of the first inventors to apply...

Friedrich Ludwig Gottlob Frege was a German philosopher, logician, and mathematician. Considered a major figure in mathematics, he is responsible for the development of modern logic and making contributions to the foundations of mathemat...

Sir Horace Lamb was an English applied mathematician and author of several influential texts on classical physics, among them Hydrodynamics (1895) and Dynamical Theory of Sound (1910). Both of these books remain in print. The word vorticity...

Heike Kamerlingh Onnes was a Dutch physicist. His scientific career was spent exploring extremely cold refrigeration techniques and the associated phenomena. In 1908, he was the first physicist to liquify helium, using cryostats. Using the...

Hendrik Antoon Lorentz was a Dutch physicist who shared the 1902 Nobel Prize in Physics with Pieter Zeeman for the discovery and elucidation of the Zeeman effect. Lorentz studied physics and mathematics at the University of Leiden, where...

Salomon August Andrée, during his lifetime most often known as S. A. Andrée, was a Swedish engineer, physicist, aeronaut and polar explorer who died while leading an attempt to reach the Geographic North Pole by hydrogen balloon. The balloo...

Jules Henri Poincaré was a French mathematician, theoretical physicist, and a philosopher of science. He is often described as a polymath, and in mathematics as The Last Universalist, since he excelled in all fields of the discipline as it...

Prof Cargill Gilston Knott was a Scottish physicist and mathematician who was a pioneer in seismological research. He spent his early career in Japan. He later became a Fellow of the Royal Society, Secretary of the Royal Society of Edinburg...

Sir Joseph John Thomson was a British physicist and Nobel Laureate in Physics, credited with the discovery of the electron, the first subatomic particle to be discovered. In 1897, Thomson showed that cathode rays were composed of previou...

Nikola Tesla was an inventor, mechanical engineer, and electrical engineer. He was one of the most important contributors to the birth of commercial electricity, and is best known for his many revolutionary developments in the field of elec...

Heinrich Rudolf Hertz was a German physicist who clarified and expanded the electromagnetic theory of light that had been put forth by Maxwell. He was the first to satisfactorily demonstrate the existence of electromagnetic waves by buildi...

Max Karl Ernst Ludwig Planck was a German physicist who is considered to be the inventor of quantum theory. In 1899, he discovered a new fundamental constant, which is named Planck's constant, and is, for example, used to calculate the ener...

Edmund Gustav Albrecht Husserl was a philosopher and mathematician who is deemed the founder of phenomenology. He broke with the positivist orientation of the science and philosophy of his day, yet he elaborated critiques of historicism and...

Sir William Henry Bragg was a British physicist, chemist, mathematician and active sportsman who uniquely shared a Nobel Prize with his son Lawrence Bragg – the 1915 Nobel Prize in Physics: "for their services in the analysis of crystal str...