Table of Contents
What did John Herschel invent?
Cyanotype
ActinometerPhotographic fixer
John Herschel/Inventions
Where is John Herschel?
Slough, United Kingdom
John Herschel/Place of birth
What did John Herschel invent in 1842?
the cyanotype
In 1842, Herschel invented the cyanotype. The cyanotype process uses light-sensitive iron salts produced by brushing solutions of ferric ammonium citrate and potassium ferricyanide, also known as Prussian blue, onto paper, which is then dried in the dark.
What name did Herschel call his photographic process that we still use today?
Herschel made numerous important contributions to photography. He made improvements in photographic processes, particularly in inventing the cyanotype process, which became known as blueprints, and variations, such as the chrysotype.
What was William Herschel famous for?
William Herschel was one of the first ‘professional’ astronomers, and discovered infrared radiation. His sister Caroline helped him to develop the modern mathematical approach to astronomy. William, son of a musician, was born in Hanover, Germany, in 1738.
Who did the first cyanotype?
John Frederick William Herschel
John Frederick William Herschel (see above) discovered and experimented with the cyanotype process in the 1840s.
How was the cyanotype discovered?
The English scientist, astronomer and botanist, Sir John Herschel discovered the Cyanotype in 1842 as a means of ‘copying’ his notes. In the early days the paper was coated with iron salts and then used in contact printing. The paper was then washed in water and resulted in a white image on a deep blue background.
What was Anna Atkins known for?
Anna Atkins, original name Anna Children, (born March 16, 1799, Tonbridge, Kent, England—died June 9, 1871, Halstead Place, Kent), English photographer and botanist noted for her early use of photography for scientific purposes.
Who invented Hyposulphite of soda?
An accomplished chemist, Herschel discovered the action of hyposulfite of soda on otherwise insoluble silver salts in 1819, which led to the use of “hypo” as a fixing agent in photography. In 1839, independently of William Henry Fox Talbot, Herschel also invented a photographic process using sensitized paper.