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John Herschel - Wikipedia
- https://en.wikipedia.org/wiki/John_Herschel#:~:text=Herschel%20made%20numerous%20important%20contributions%20to%20photography.%20He,as%20blueprints%2C%20and%20variations%2C%20such%20as%20the%20chrysotype.
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Sir John Herschel: Biography & Photography | Study.com
- https://study.com/academy/lesson/sir-john-herschel-biography-photography.html
- In 1839, Herschel coined the term photography, which means light-drawing, or sun-writing from the Greek roots for 'photo' (light) and 'graph' (to draw). …
John Herschel - a Pioneer in Celestial Photography - SciHi …
- http://scihi.org/john-herschel-celestial-photography/
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Sir John Herschel, 1st Baronet | English astronomer
- https://www.britannica.com/biography/John-Herschel
- 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; and he invented in 1839, independently of Fox Talbot, the process of photography on sensitized paper. He was the first person to apply the now well-known terms “positive” and “negative” to …
Sir John Frederick William Herschel | International …
- https://iphf.org/inductees/sir-john-frederick-william-herschel/
- As quickly as February 1, William Henry Fox Talbot visited Herschel. Based on his research in 1819, Herschel solved the problem of fixing that plagued early photographic experimenters. That same year and the following years of 1840 and 1842, Herschel published papers on photography.
John Herschel - Biography, Facts and Pictures
- https://www.famousscientists.org/john-herschel/
- Herschel coined the word photography and was the first to describe photographs as either negatives or positives. In 1842, Herschel invented the cyanotype – the low cost photographic printing process that allowed engineers and architects to produce blueprints of their designs. Herschel found that iron salts were light sensitive.
Sir John Herschel - ERHS Photography Class - Google
- https://sites.google.com/a/pgcps.org/erhs-photography/science-of-a-permanent-photograph/Science-of-Photography/sir-john-herschel
- The cyanotype or blue-print was invented by Sir John Herschel in 1840, using a mixture of ferric ammonium citrate and potassium ferricyanide to produce a light sensitive paper. As a relatively...
Cyanotype history – John Herschel’s invention
- https://www.alternativephotography.com/cyanotype-history-john-herschels-invention/
- The cyanotype process, also known as the blueprint process, was first introduced by John Herschel (1792 – 1871) in 1842. Sir John was an astronomer, trying to find a way of copying his notes. Herschel managed to fix pictures using hyposulphite of soda as early as 1839.
Sir John Herschel (1792-1871) | Cleveland Museum of Art
- https://www.clevelandart.org/art/1996.345
- Herschel, a renowned British mathematician, scientist, and innovator in photographic chemistry, was not just Cameron’s friend; she regarded him as “a Teacher and High Priest.” She wrote that when such great men posed for her, her “whole soul has endeavored to do its duty towards them in recording faithfully the greatness of the inner [being] as well as the features of the outer …
John Herschel and his contributions to astronomy
- https://www.britannica.com/summary/John-Herschel
- John Herschel, in full Sir John Frederick William Herschel, 1st Baronet, (born March 7, 1792, Slough, Buckinghamshire, Eng.—died May 11, 1871, Collingwood, Kent), English astronomer.He was the son of astronomer William Herschel. He studied at the University of Cambridge, where he met mathematicians Charles Babbage and George Peacock.
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