physics

John Dollond – Improving the Telescope with Achromatic Lenses

John Dollond – Improving the Telescope with Achromatic Lenses

On June 10, 1706 (10 June O.S. / 21 June N.S.), English optician John Dollond was born. He is known for his successful optics business and his patenting and commercialization of achromatic lenses. John Dollond – Biographical Background John Dollond came from a Huguenot emigrant family and initially worked as a silk weaver like everyone else in his family, but was also involved in astronomy and optics. He studied Latin, Greek, mathematics, physics,…
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Karl Ferdinand Braun – inventor of the famous Braun Tube

Karl Ferdinand Braun – inventor of the famous Braun Tube

On June 6, 1850, inventor, engineer, and Nobel laureate Karl Ferdinand Braun was born. Braun was particularly instrumental in making electromagnetic radiation, which had been experimentally proven by Heinrich Hertz [1] in 1888, usable for communications technology. Karl Ferdinand Braun – Family Background and Education Karl Ferdinand Braun was born in Fulda, Germany as the sixth of seven children of the Electoral Hessian court official Konrad Braun, he attended the Fulda Cathedral Grammar School.…
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The Bose-Einstein Condensate brings Quantum Theory to the Macroscopic Scale

The Bose-Einstein Condensate brings Quantum Theory to the Macroscopic Scale

On June 5, 1995, the very first Bose-Einstein condensate was experimentally produced by Eric Cornell and Carl Wieman at the University of Colorado. A Bose–Einstein condensate (BEC) is a state of matter of a dilute gas of bosons cooled to temperatures very close to absolute zero. Under such conditions, a large fraction of the bosons occupy the lowest quantum state, at which point quantum effects become apparent on a macroscopic scale. For…
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James Pollard Espy – the Storm King

James Pollard Espy – the Storm King

On May 9, 1785, U.S. Meteorologist James Pollard Espy was born. Espy developed a convection theory of storms and developed the use of the telegraph in assembling weather observation data by which he studied the progress of storms and laid the basis for scientific weather forecasting. James Pollard Espy – Early Years The youngest of ten children, James Espy was born in Westmoreland County, Pennsylvania, USA. He had an ardent desire for…
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Jan Hendrik Oort and the Secrets of the Oort Cloud

Jan Hendrik Oort and the Secrets of the Oort Cloud

On April 28, 1900, Dutch physicist and astronomer Jan Hendrik Oort was born. One of the greatest astronomers of the 20th century, Oort made significant contributions to the understanding of the Milky Way and who was a pioneer in the field of radio astronomy. Oort determined that the Milky Way rotates and overturned the idea that the sun is at its center; he discovered mysterious invisible ‘dark matter‘ in 1932, as well…
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Pierre Curie – A Pioneer in Radioactivity

Pierre Curie – A Pioneer in Radioactivity

On 19 April 1906, French physicist and Nobel laureate Pierre Curie died in an accident. A pioneer in crystallography, magnetism, piezoelectricity and radioactivity, he co-jointly received the Nobel Prize in Physics in 1903 with his wife, Marie Skłodowska-Curie, and Henri Becquerel, “in recognition of the extraordinary services they have rendered by their joint researches on the radiation phenomena discovered by Professor Henri Becquerel“.[9] “If one leaves a wooden or cardboard box containing a…
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Sin-Itiro Tomonaga and Quantum Electrodynamics

Sin-Itiro Tomonaga and Quantum Electrodynamics

On March 31, 1906, Japanese physicist and Nobel laureate Sin-Itiro Tomonaga was born. He was influential in the development of quantum electrodynamics, work for which he was jointly awarded the Nobel Prize in Physics in 1965 along with Richard Feynman and Julian Schwinger. Tomonaga was one of the first to apply quantum theory to subatomic particles with very high energies. “Nature was not satisfied by a simple point charge but required a…
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Joseph Sauveur and the Science of Acoustics

Joseph Sauveur and the Science of Acoustics

On March 24, 1653, French mathematician and physicist Joseph Sauveur was born. Sauveur is known principally for his detailed studies on acoustics, a term he also has coined for the first time. Joseph Sauveur – Early Years Joseph Sauveur was the son of a provincial notary in La Fléche, France. Despite a hearing and speech impairment that kept him totally mute until he was seven, Joseph benefited from a fine education at…
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John Randall and the Cavity Magnetron

John Randall and the Cavity Magnetron

On March 23, 1905, British physicist and biophysicist Sir John Randall was born. Randall is credited with radical improvement of the cavity magnetron, an essential component of centimetric wavelength radar, which was one of the keys to the Allied victory in the Second World War. It is also the key component of microwave ovens. He also led the King’s College, London team which worked on the structure of DNA. John Randall –…
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Alexander Popov and his Radio Receiver

Alexander Popov and his Radio Receiver

On March 4, 1859, Russian physicist Alexander Stepanovich Popov was born. Alexander Popov is acclaimed in his homeland and eastern European countries as the inventor of radio. In 1895 he presented a paper on a wireless lightning detector he had built that worked via using a coherer to detect radio noise from lightning strikes. “I can express my hope that my apparatus will be applied for signaling at great distances by electric vibrations…
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