John Henry Pepper
British scientist and inventor (1821-1900) · Scientists · Died at 78
John Henry "Professor" Pepper was a British scientist and inventor who toured the English-speaking world with his scientific demonstrations. He entertained the public, royalty, and fellow scientists with a wide range of technological innovations.
John Henry Pepper is read about 14 times a day, in 8 languages.
A typical day, 30 days to 29 June 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.
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About this person
He is primarily remembered for developing the projection technique known as Pepper's ghost, building a large-scale version of the concept by Henry Dircks, which Pepper first publicly demonstrated during an 1862 Christmas Eve theatrical production of the Charles Dickens novella, The Haunted Man and the Ghost's Bargain, causing a sensation among those in attendance at the Regent Street theatre in London.
