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By January 1839, when the daguerreotype was first made public, John Herschel had long been familiar with the basic chemical and optical components necessary to begin his own photographic experiments.
- The Son of A Famous Astronomer
- The Analytical Society of Cambridge
- The Royal Astronomical Society
- Legal Profession Or Parallaxes
- Travel to South Africa
- Further Astronomical Achievements
- A Pioneer of The Photographic Process
- Later Years
John Frederick William Herschel was born in Slough, Buckinghamshire, the son of Mary Baldwin and famous astronomer William Herschel, who discovered Uranus . In addition to his parents, his aunt Caroline Herschel was another important figure in John Herschel’s upbringing. John was brought up in Observatory House, with its 40 foot telescope, where mu...
Herschel studied shortly at Eton College and St John’s College, Cambridge, graduating as Senior Wrangler in 1813. Also in 1813 he was elected as a fellow of the Royal Society of London, having published a mathematics paper On a remarkable application of Cotes’s theorem in the Transactions of the Royal Society. It was during his time as an undergrad...
John Herschel left Cambridge in 1816 and started working together with his father. He took up astronomy in 1816, building a reflecting telescope with a mirror 18 inches (460 mm) in diameter and with a 20-foot (6.1 m) focal length. Between 1821 and 1823 he re-examined, with James South, the double stars catalogued by his father. He was one of the fo...
Perhaps most surprising of all was the decision that Herschel made after graduating, when he decided to enter the legal profession, much against the advice of his father who wanted him to join the Church, and he went to London in February 1814 to begin training. It was not long before he found that it was not right for him and after 18 months, he g...
John Herschel’s sense of obligation to complete his father’s work in astronomy led him to consider a journey to the Southern Hemisphere to survey the skies not visible in England. Herschel arrived in Cape Town on 15 January 1834 and set up a private 21 ft (6.4 m) telescope at Feldhausen at Claremont, a suburb of Cape Town. Amongst his other observa...
John Herschel collaborated with Thomas Maclear, the Astronomer Royal at the Cape of Good Hope and the members of the two families became close friends. During this time, he also witnessed the Great Eruption of Eta Carinae (December, 1837). When HMS Beagle called at Cape Town, Captain Robert FitzRoy and the young naturalist Charles Darwin visited He...
Herschel was also a highly accomplished chemist. His discovery in 1819 of the solvent power of hyposulfite of soda on the otherwise insoluble salts of silver was the prelude to its use as a fixing agent in photography. On 22 January 1839 Herschel heard of Daguerre’s work on photography from a casual remark in a letter. Without knowing any details, ...
In 1850 Herschel made a rather strange decision as to the future direction of his career. He had turned down entering parliament as a Cambridge University member and accepted the post of Master of the Mint at a very difficult time, with a major reform already agreed but its implementation not begun. Furthermore, Herschel proposed a correction to th...
He named seven moons of Saturn and four moons of Uranus – the seventh planet, discovered by his father Sir William Herschel. He made many contributions to the science of photography, and investigated colour blindness and the chemical power of ultraviolet rays.
Jan 13, 2021 · Herschel at the Cape; diaries and correspondence of Sir John Herschel, 1834-1838 : Herschel, John F. W. (John Frederick William), 1792-1871 : Free Download, Borrow, and Streaming : Internet Archive.
Feb 28, 2023 · Sir John Herschel: The inventor of cyanotypes. Sir John Herschel began by experimenting with sun prints (or photograms). These were one of the earliest forms of photography and involved laying an object on chemically-treated paper before exposing it to a light source.
Oct 4, 2022 · Herschel is an important figure in photography, as he made significant contributions by inventing various photographic processes, including the chrysotype and cyanotype, the latter of which was the origin of the term blueprint that is so known in engineering (but also in everyday life).
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It was around 1839 when the polymath Sir John Frederick William Herschel coined the term photography from the Greek + , meaning to inscribe, to write or to draw with light (Herschel, 1843a; φως Schaaf, γράφω 1979). Herschel is an important figure in.
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