cross-posted from: https://feddit.org/post/1097575
this post was submitted on 28 Jul 2026
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I hope the water thing is /s
The whole post is ridiculous. Putting cars on the water and inventing boats is pretty funny though.
Why do you want that to be sarcasm?
Wouldn't you prefer that to be true??
You hope differently to me.
Water powered car's been invented more than just that once with the famous Stanley Meyer story. Y'know those blow torch thingies, that use water? Yeah, same basic principle. And remember in that special episode of Top Gear (I think it was maybe the Myanmar episode), where Hammond put a little water in his engine (in with the fuel) to give it more go at altitude? Same principle as many of the "water powered car"s use, where instead of (afaiu) electromagnetic alignment catalyst, they use chemical catalysts (and other starters and combustants etc), to which some eager naysayers throw the baby out with the bathwater and proclaim it all bunk because those designs were not using pure water. ... I'm not sure any use entirely pure water, do they? Didn't even Stanley Meyers design involve some kind of other chemical in the mix too? I'm not looking into it any further than is popularly known. I don't want to be mistaken for an inventor, attracting the attention of the ruthless unscrupulous sorts with a lot invested in their rentier ride. ;)
Amusing aside... can haz steam powered car too. ;) Too contrived to call that water powered? Hehe. Even a Stirling engine?
I'm assuming they were hoping you don't actually believe it to be possible, not hoping that it's impossible.
As far as I know, there's no viable way to get water out of energy. All the different hydrocarbons we burn tend to produce water as a result of the burning process (CO2 and H2O being the results of a clean burning hydrocarbon).
The trouble is, you need energy to break bonds between atoms, and energy gets released as bonds are created. H2O has some pretty strong bonds and there's nothing you can easily make it react with to get more or stronger bonds in there.
Water can be used in internal combustion engines to cool down the combustion chambers if you're running super high performance, but that doesn't meant water injection is adding energy from water, you'd still be burning more fuel to get more power.
They make cars which run on hydrogen which you can get from water but that process is so inefficient they opt to get the hydrogen from natural gas instead thus defeating the entire purpose. Overall we have better tech now than "running a car on water" and doing that doesn't help the bigger problem of unsustainable use of energy
The only practical way to get power from water is to break it apart and then burn the hydrogen, and it takes more energy to break it apart than you'll get back.