These elements when sparked can cool, or heat things like WIFI, DLAY, you know elemts that the temp means something. it could be usefull for reactors, engines, because when a reactor reaches a certain temp the dlay to let the fuel in could be shortened or lengthened. that could produce multi-speed engines, and more intelligent, computers for controling things. So instead of just manually cooling or heating the DLAY, you could make an automated system that cools and heats it by its self
Although I agree with you and would like to have these elements, they have been rejected countless times. But this is MORE useful than the ones suggested before, because it could heat/cool non-conductive materials that otherwise could only be heated/cooled manually.
well i was thinking like if sparked by metal then cool or heat DLAY by 4 but it sparked by ncsn or pcsn then cool/heat DLAY by 12 or something, incase of someone needing speedy changes :)