Who? Hedy Lamarr
What? In the Forties, Lamarr hit upon an idea for synchronised variable radio frequencies, a technology that is now used in cellphones.
Where? The Casbah in Algiers. Hedy Lamarr starred in John Cromwell's film Algiers, in 1938.
Congratulations to the winners: A Canton, London W10; J Packer, Nailsea, Avon; M Moretti, Slough, BerkshireReuse content