Calculator Culture YouTube Video on the HP-48GX

[Chumango]

Magnets used to focus and steer beams at particle accelerators are water cooled. The deionized water goes through cooling passages in the copper windings and bus bars. These magnets use multi-thousand amps current. So water and electricity can play together.

The copper stator coils in generators at electric power stations are also cooled by DI water. They are directly cooled by water flowing through the coils. Lots of electrical power there.