Are you kidding me?????
How did they go through all that and not ask how much energy they were pumping into the sea water
via the radio
waves vs how much energy they were getting from that little candle flame?
You can split sea water
into hydrogen and oxygen easily using electricity if you want to. Why would you convert the electricity into radio waves, then into hydrogen and oxygen, then into heat, and then into rotary motion? Each step has losses. Convert the electricity directly into rotary motion using an electric motor
and you'll be way ahead.
Now if he had shown that the radio wave conversion was more efficient than electrolytic conversion, then we might have some interest for those who are pushing hydrogen fuel
cells as a good idea, but they didn't even address that simple question.