Ultrasound, 1963 (University of Cambridge)

The first obstetric ultrasound was developed in 1956 in Scotland by Ian Donald and Tom Brown, using a prototype based off detecting flaws in industrial ships. It began to be used regularly within the country, and later spread to the U.K. and America in the 1970s.

Ultrasounds use ultrasonic waves to determine features of the fetus. Early on, this couldn’t be done, as the technology wasn’t nearly as advanced. It’s fascinating to see how it’s caught up.