sherman-the-first-americans_page_21

sherman-the-first-americans | page 21 | https://thedailydialectics.com/pdfs/sherman-the-first-americans/sherman-the-first-americans.pdf

University of Birmingham successfully tested a pro- totype of a device known as the cavity magnetron, which was both small and powerful enough to meet the requirements of an effective mobile air-based radar system. The Tizard mission brought one of the early versions of the magnetron to the United…