Scientist: Tata dreams of cars running on water

Genius! because if their cars do get fire* there's always some water to douse the flames<p>*<a href="http://indianautosblog.com/2010/11/tata-nano-recall" rel="nofollow">http://indianautosblog.com/2010/11/tata-nano-recall</a>

At the risk of stating the obvious for most readers here -- the energy put into cracking water will always be more than any reaction you would receive from combining the results (hydrogen and oxygen) back.

attention, yet another hho-gas scam!!!<p>but tata isn't the first one who believed that crap. hho-gas scam has a long history, try googling for hho-gas, rhodes gas, browns gas, free energy, overunity ...<p>every once and a while somebody with lots of money believe's that crap. (i got interested in this free energy/overunity crap after my father got scamed, i was blown away how many believe that)<p>this just can't work, see laws of thermodynamics: <a href="http://en.wikipedia.org/wiki/Thermodynamics#Laws_of_thermodynamics" rel="nofollow">http://en.wikipedia.org/wiki/Thermodynamics#Laws_of_thermody...</a> german speakers may be interested in that: <a href="http://www.esowatch.com/ge/index.php?title=HHO" rel="nofollow">http://www.esowatch.com/ge/index.php?title=HHO</a>

I'm confused. Splitting water takes energy. The hydrogen can be supplied to the car and a hydrogen fuel cell recombines it to produce energy.<p>So surely the cars would be running on hydrogen?<p>Or else, how does one get energy from water (without fusion)?

But what we'd really like is to be driving their cars that run on air.