The 100th anniversary of the mobile phone

On 9th May 1908 an American inventor called Nathan Stubblefield was awarded a patent for the world's first ever mobile telephone in Murray, Kentucky USA. Nathan was a true pioneer, he had been experimenting with wireless telephones for a few years, managing to send his and his son's voice between early telephones through the ground and even through water! No one apart from Nathan really understood at the time how his invention worked; he was a real showman but would never give away his secret.