[saltydog (OP)]

 The world, according to the first law of thermodynamics, is flat.
Take what you see in this video, create an enclosed system and use the opposing/oscillating/alternating high frequency radio waves (13.56 megahertz range) to get more than 100 times the hydrogen you see being created in this clip - all for the electricity it takes to run three 75Watt light bulbs.
Note the "3000" degree flame coming off the paper toweling that the inventor put in the test tube. The toweling barely singes when the inventor turns off the device. This means that there is a concentration gradient of gas to the extent that it's carrying the heat along with it. Acting on 100 times the amount of saltwater in that same space can only create 100 times what you see in the video. More than enough to run a combustion engine or fuel cell. But here's the thing, "3000" degree flame. Water separates into its component parts at "2000" degrees. So if you channeled the gas created to a number of "wicks" inside a rocket thruster and then injected water into the flames being created then the only possible reaction would be thrust capable of creating enough lift to leave the planet (with a large enough unit). All for the price of the kind of electricity you can generate from a car battery.
More energy out than in? You be the judge...