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  1. John Frederick William Herschel è stato un astronomo, matematico e chimico britannico. John Herschel fu il primo a utilizzare il giorno giuliano nell'astronomia, portò importanti contributi al miglioramento dei procedimenti fotografici del periodo, scoprendo la proprietà del tiosolfato di sodio, al tempo iposolfito di sodio, nel ...

  2. Sir John Frederick William Herschel, 1st Baronet KH FRS (/ ˈ h ɜːr ʃ əl, ˈ h ɛər-/; 7 March 1792 – 11 May 1871) was an English polymath active as a mathematician, astronomer, chemist, inventor, and experimental photographer who invented the blueprint and did botanical work.

  3. 9 mag 2024 · Sir John Herschel, 1st Baronet (born March 7, 1792, Slough, Buckinghamshire, England—died May 11, 1871, Collingwood, Kent) was an English astronomer and successor to his father, Sir William Herschel, in the field of stellar and nebular observation and discovery.

    • The Editors of Encyclopaedia Britannica
  4. Astronomo inglese (Slough 1792 - Collingwood 1871), figlio di Frederick William. Lavorò nel campo delle stelle doppie, degli ammassi stellari e delle nebulose. Interessanti le sue osservazioni del cielo australe dal Capo di Buona Speranza (1834-38). Il suo nome è pure legato allo sviluppo della logica induttiva.

  5. 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.

  6. 31 mar 2018 · John Herschel was a polymath – a brilliant mathematician, astronomer, chemist, and inventor. He produced the first global survey of the night skies, discovered hundreds of nebulae and thousands of double stars, invented the actinometer to measure the heating power of radiation, invented hypo fixing of photographs, and invented the ...

  7. 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.

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