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Heinrich Hertz

physics
Sir William Crookes and the Fundamentals of Luminescence

Sir William Crookes and the Fundamentals of Luminescence

Harald Sack
On June 17, 1832, British physicist, chemist, science journalist, and parapsychologist Sir William Crookes was born. Crookes visualized cathode rays, discovered the fundamentals of luminescence and isotopes, and developed methods for detecting ionizing radiation. He discovered the chemical element thallium and the thorium isotope 234Th. William Crookes – Biographical Background William Crookes was born in London, the eldest son of the second wife of Joseph Crookes, a very wealthy tailor. He attended…
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communication
Oliver Lodge and the Development of Radio Technology

Oliver Lodge and the Development of Radio Technology

Tabea Tietz
On June 12, 1851, British physicist Sir Oliver Joseph Lodge was born. Lodge was involved in the development of, and holder of key patents for radio. He identified electromagnetic radiation independent of Hertz‘ proof and at his 1894 Royal Institution lectures, Lodge demonstrated an early radio wave detector he named the “coherer“.[4] “Men of Science would do well to talk plain English. The most abstruse questions can very well be discussed in our…
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physics
Karl Ferdinand Braun – inventor of the famous Braun Tube

Karl Ferdinand Braun – inventor of the famous Braun Tube

Tabea Tietz
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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physics
Pierre Curie – A Pioneer in Radioactivity

Pierre Curie – A Pioneer in Radioactivity

Harald Sack
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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communication
Alexander Popov and his Radio Receiver

Alexander Popov and his Radio Receiver

Tabea Tietz
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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communication
Guglielmo Marconi and his Magic Machine

Guglielmo Marconi and his Magic Machine

Harald Sack
On December 12, 1901, Italian born engineer Guglielmo Marconi succeeded with the very first radio transmission across the Atlantic, by receiving the first transatlantic radio signal at Signal Hill in St John’s, Newfoundland transmitted by the Marconi company’s new high-power station at Poldhu ,Cornwall. The distance between sender and receiver was about 3,500 kilometres (2,200 mi) and with this groundbreaking long distance record the era of wireless telecommunication started. “Have I done…
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engineering
Robert Alexander Watson-Watt and the Radar Technology

Robert Alexander Watson-Watt and the Radar Technology

Harald Sack
On February 26, 1935, British engineer and Fellow of the Royal Society Robert Alexander Watson-Watt started with first experiments on detecting and locating aircrafts with radio technique, later called ‘RADAR‘. Radar was initially nameless and researched elsewhere but it was greatly expanded on 1 September 1936 when Watson-Watt became Superintendent of Bawdsey Research Station located in Bawdsey Manor, near Felixstowe, Suffolk. Work there resulted in the design and installation of aircraft detection and tracking stations…
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communication
Germany’s First Radio Program Goes Public

Germany’s First Radio Program Goes Public

Tabea Tietz
On October 29, 1923 the very first radio program in Germany was broadcast from the Vox-Haus in Berlin, Tiergarten. Funk-Stunde AG Berlin was the first radio station in Germany. The station was operated by the broadcasting company of the same name and broadcast its program from Berlin in the then northern German broadcasting district. Technical Background and Key Figures The history of the radio is long and for many years it was not…
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physics
Heinrich Hertz and the Successful Transmission of Electromagnetic Waves

Heinrich Hertz and the Successful Transmission of Electromagnetic Waves

Tabea Tietz
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.[4] The unit of frequency – cycle per second – was named the “hertz” in his honor. “The rigour of science requires that we distinguish well the undraped figure of Nature itself from the gay-coloured…
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physics
Oliver Heaviside changed the Face of Telecommunications

Oliver Heaviside changed the Face of Telecommunications

Tabea Tietz
On May 18, 1850, English self-taught electrical engineer, mathematician, and physicist Oliver Heaviside was born. Heaviside adapted complex numbers to the study of electrical circuits, invented mathematical techniques for the solution of differential equations, reformulated Maxwell’s field equations in terms of electric and magnetic forces and energy flux, and independently co-formulated vector analysis. “However absurd it may seem, I do in all seriousness hereby declare that I am animated mainly by philanthropic motives.…
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