Scientists Against Time

West Hunter

Back in WWII, air defense was difficult. You were shooting at high altitude, fast-moving targets. Missing was the most natural thing in the world. One out of thousands of anti-aircraft shells hit. So, there was a need for better methods.

The solution was the proximity shell – a shell with a tiny radar inside that would make the shell explode when it got _close_ to a target. This was technically challenging: it’s not easy to cram a radar into an artillery shell, not easy to build one that still works after experiencing accelerations of thousands of gravities. Moreover, people needed an answer _soon_.

The British had made some progress, but lacked sufficient resources. The US picked up the project, starting a lab that eventually became APL (Applied Physics Lab, associated with Johns Hopkins, which still exists today) . Its leader was Merle Tuve, who understood what the wartime priorities were:

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