Hedy Lamarr was one of the Thirties’ most glamorous movie stars. She was marketed by her studio as the “world’s most beautiful woman” and had six husbands. So far, so Hollywood.

The famously beautiful actress Hedy Lamarr set movie screens ablaze in the 1940s and '50s, but what few knew was that her true calling was as an inventor: Credit Lamarr with the Wi-Fi technology ...