Scientists uses radio waves to burn salt water.

I think this is just as intriguing as it sounds.

There are investigations afoot to see how viable it is to use salt-water as fuel.

Links available here and here, the second one being longer.

Of course, the main issue is how unlikely it is that the energy released by the water is more than that taken to power the radio transmitter, but... burning water! What's not to like.

- Kevin.