Slightly related, the soviets operated mechanical computers which used water instead of gears and levers to compute things. Apparently they were used well into the 80's
https://www.amusingplanet.com/2019/12/vladimir-lukyanovs-wat...
https://www.amusingplanet.com/2019/12/vladimir-lukyanovs-wat...
Legend has it that there was once a water-cooled Soviet mainframe model. At some point one of the machines was overheating and it was tracked down to the algae growth in coolant tubes. So the joke was that this made Soviets the pioneers of bionic computing.