The medieval mystery of the booted man in the mud

A mysterious male skeleton, lying face-down deep in the Thames mud, with a pair of in-situ thigh-high leather boots has been discovered by our archaeologists working on one of the sites being used to build London's super ...

Bats versus dolphins – the ultimate battle of sonar systems

Active sensors are incorporated into a number of technologies, such as meteorology devices and self-driving cars, and use the echo from sound, radio or light waves to locate objects. But despite nearly a century of development, ...

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