Trevor Baylis
English inventor (1937-2018) · United Kingdom · On the map · Scientists · Died at 80
Trevor Graham Baylis was an English inventor best known for the wind-up radio. The radio, instead of relying on batteries or an external electrical source, is powered by the user winding a crank. This stores energy in a spring which then drives an electrical generator.
Trevor Baylis is read about 44 times a day, in 14 languages.
A typical day, 30 days to 23 September 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
Baylis invented it in response to the need to communicate information about AIDS to the "people of Africa". He ran a company in his name dedicated to helping inventors to develop and protect their ideas and to find a route to market.
