veggie oil?? -->> Try Water ?

[mike]

Hmmm....a plane that flies by having aluminium
vaporised by lasers

I think i'll pass on that one, although Al Qaeda might
be interested

Mike

--- "Cat     ^. .^   ~" <iceisit at earthlink.net> wrote:

> 
> 
> "WATER: THE ULTIMATE  PROPELLANT
> 
> "Will water be the fuel of the future to power
> aircraft and spacecraft?
> 
> "If so, mankind will be employing a technology of 
> the god's and, as in other fields, modern science 
> will be only catching up with ancient knowledge.
> 
> "The news of the possible use of water as an 
> abundant and clean resource as the "fuel" for jet 
> propulsion comes from the Tokyo Institute of 
> Technology that has been developing technologies 
> for powering small un-piloted planes by 
> subjecting their "engines" to laser beams fired 
> from the ground or from satellites.  In what has 
> been hailed as a great success, the Tokyo team 
> reported in the June 10 issue of Applied Physics 
> that they made a tiny paper "plane" fly by 
> subjecting its "motor" of aluminum plates to 
> laser beams.  Causing minute amounts of the metal 
> to vaporize, a jet stream was achieved that cause 
> the plane to soar.
> 
> "The experiment thus attained the trick of 
> creating an ejected jet of some mass that pushed 
> the plane forward.  In regular jet planes, the 
> jet is created by burning petroleum fuel and 
> ejecting the hot gas.  In the Tokyo experiment, 
> the heat was provided by the laser beam, the jet 
> by the evaporated aluminum.  To scale the 
> propulsion system up to full size, Takashi Yabe, 
> head of the Tokyo team, proposed using water as 
> the propellant.    Water can be harvested from 
> the atmosphere as the plane files,î he said. 
> Reporting the experiment and the water-use idea, 
> the journal New Scientist (15 June 2002) 
> illustrated the futuristic "water engineî " 
> ........  "
> 
>
http://www.20kweb.com/weird_stuff/water_the_ultimate_propellant.html
> 
> -- 
> Cheers,  Fay
> 
> ^. .^   ~
> 
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> 


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