Though the British made major scientific advances during World War II, by September 1940, they were mired in the Battle of Britain and unable to produce the new military technology that could help them win. Taking a gamble, prominent British scientist Henry Tizard led a mission to give Britain’s secret military research to the US in the hope that it would be developed faster there—and that the US would share the results with Britain. It worked. What critical object did Tizard bring with him? Discuss