physics

Heinrich Hertz and the Transmission of Electromagnetic Waves

Heinrich Hertz and the Transmission of Electromagnetic Waves

On November 13, 1886, German physicist Heinrich Hertz succeeded to transmit electromagnetic waves from a sender to a receiver in Karlsruhe. Hertz conclusively proved the existence of the electromagnetic waves theorized by James Clerk Maxwell’s electromagnetic theory of light. The unit of frequency – cycle per second – was named the “hertz” in his honor. Heinrich Hertz studied science and engineering in Dresden, Munich, and Berlin under Gustav R. Kirchhoff and…
John William Strutt and the Rayleigh Scattering

John William Strutt and the Rayleigh Scattering

On November 12, 1842, English physicist John William Strutt, 3rd Baron Rayleigh was born. Rayleigh with William Ramsay, discovered argon, an achievement for which he earned the Nobel Prize for Physics in 1904. He also discovered the phenomenon now called Rayleigh scattering, which can be used to explain why the sky is blue, and predicted the existence of the surface waves now known as Rayleigh waves. Strutt was born at…
Joseph G. Hamilton and the health effects of radioactive isotopes

Joseph G. Hamilton and the health effects of radioactive isotopes

On November 11, 1907, American professor of Medical Physics, Experimental Medicine, General Medicine, and Experimental Radiology Joseph Gilbert Hamilton was born. Hamilton studied the medical effects of exposure to radioactive isotopes, which also included the use of unsuspecting human subjects. Joseph Hamilton joined the University of California and earned his Bachelors degree in Chemistry in 1929. He continued his education and studied medicine in Berkeley and also worked at the University…
Sir Hermann Bondi and the Steady State Theory

Sir Hermann Bondi and the Steady State Theory

On November 1, 1919, Anglo-Austrian mathematician and cosmologist Sir Herman Bondi was born. Bondi is best known for developing the Steady State theory of the universe with Fred Hoyle and Thomas Gold as an alternative to the Big Bang theory. Their model was rendered obsolete, when in 1965, Arno Penzias and Robert Wilson detected a background microwave radiation from all directions in space, as predicted by the “Big Bang” theory…
Laura Bassi – the first Woman with a University Chair

Laura Bassi – the first Woman with a University Chair

Between October 20 and October 29, 1711, Italian physicist and academic Laura Maria Caterina Bassi was born. Bassi is referred to as being the first woman to earn a professorship in physics at a university in Europe and is recognized as the first woman in the world to earn a university chair in a scientific field of studies. She contributed immensely to the field of science while also helping to…
Charles Proteus Steinmetz and the Alternating Current

Charles Proteus Steinmetz and the Alternating Current

On October 26, 1923, German-born American mathematician and electrical engineer Charles Proteus Steinmetz passed away. Steinmetz fostered the development of alternating current that made possible the expansion of the electric power industry in the United States, formulating mathematical theories for engineers. He made ground-breaking discoveries in the understanding of hysteresis that enabled engineers to design better electromagnetic apparatus equipment including especially electric motors for use in industry. Charles Proteus Steinmetz…
Ilya Frank and the Cherenkov Radiation

Ilya Frank and the Cherenkov Radiation

On October 23, 1908, Soviet physicist Ilya Mikhailovich Frank was born. Frank received the Nobel Prize for Physics in 1958 jointly with Pavel Alekseyevich Cherenkov and Igor Y. Tamm for his work in explaining the phenomenon of Cherenkov radiation, an electromagnetic radiation emitted when a charged particle (such as an electron) passes through a dielectric medium at a speed greater than the phase velocity of light in that medium. Ilya…
Friedrich Kohlrausch and the Conductive Properties of Electrolytes

Friedrich Kohlrausch and the Conductive Properties of Electrolytes

On October 14, 1840, German physicist Friedrich Wilhelm Georg Kohlrausch was born. Kohlrausch investigated the conductive properties of electrolytes and contributed to knowledge of their behaviour. He also investigated elasticity, thermoelasticity, and thermal conduction as well as magnetic and electrical precision measurements. Friedrich Kohlrausch studied physics at Erlangen and Göttingen, Germany. He was appointed professor of physics at the University of Göttingen in 1866 and became professor at ETH Zurich in…
Pieter Zeeman and the Zeeman Effect

Pieter Zeeman and the Zeeman Effect

On October 9, 1943, Dutch physicist Pieter Zeeman passed away. Zeeman shared the 1902 Nobel Prize in Physics with Hendrik Lorentz for his discovery of the Zeeman effect, the effect of splitting a spectral line into several components in the presence of a static magnetic field. Pieter Zeeman witnessed the Aurora borealis in the Netherlands during 1883 and created a drawing of the phenomenon which was published in Nature. During the same…
Paul Villard and the Gamma Radiation

Paul Villard and the Gamma Radiation

On September 28, 1860, French chemist and physicist Paul Ulrich Villard was born. Villard is best known for having discovered gamma rays in 1900 while studying the radiation emanating from radium. Paul Villard was born in Saint-Germain-au-Mont-d’Or, Rhône, France. Villard entered the École Normal Supérieure in 1881 and received the agrégé in 1884, which gave him the license to teach at any secondary school financed by the government.[2] After teaching…
Relation Browser
Timeline
0 Recommended Articles:
0 Recommended Articles: