Pumps Without Moving Parts
madprof writes "A researcher at Cambridge University has developed a usefully efficient thermofluidic pump to benefit some of the world's poorest people by performing irrigation and other tasks. Tom Smith has been awarded Science Graduate of the Year by the Royal Institution of Great Britain for this breakthrough and is giving a public lecture on 6th October in London. A great example of scientific innovation directly benefiting people."
The terminology sounds ok to me -- moving parts implies that there are parts that wear out and have to be replaced because of friction or whatever. Like a metal piston and so forth.
Saying this engine has no moving parts makes senes and seems fair.
Do they count gasoline or coolant or oil as a moving part in car engines? I think THAT would be overly pedantic.