Summary: In a desperate gamble to encourage the USA to come to Britain's aid during their most desperate of days of WW2, Churchill dispatched Sir Henry Tizard to America bearing a small metal box... Tizard's Trunk. Inside were some of the most closely guarded technological secrets that Britain had to offer.<br> <br> John Cockroft (right) wearing his Medal of Freedom awarded for his services to the Manhattan Project.<br> <br> <br> <br> An original cavity magnetron, 1940, developed by John Randall and Harry Boot at Birmingham University.<br> <br> <br> <br> Images displayed under Creative Commons licence with thanks to Los Alamos National Laboratory, the Science Museum London and the MIT Museum.
