Sir john herschel photography biography examples
Sir John Frederick William Herschel, 1st Baronet KH FRS (/ ˈ h ɜːr ʃ əl, ˈ h ɛər-/; [2] 7 March – 11 May ) [1] was an English polymath active as a mathematician, astronomer, chemist, inventor and experimental photographer who invented the blueprint [3] [4] [5] and did botanical work.