The History of Nuclear Tests

The UK and US used to share test sites in the Pacific. Each would bring their own instruments to measure power of nuclear tests on the ground. U.S had very sensitive state-of-the-art pressure transducers, but they kept getting broken or having their readings wiped by shockwaves and radiation. The UK with a much smaller budget realized that you could measure the pressure of a nuclear blast just by getting a squeezy tube of toothpaste.