Heh, where I am petrol (gas to you guys) costs about $1.15 Aussie, so that's about 90 cents to you guys... I think...
Actually, rocket engines work completely backwards from fuel cells. In a rocket, hydrogen and oxygen combine, producing water and energy, which pushes the rocket upwards. In a car, the water is split into hydrogen and oxygen, which are burned to power the car.
(At least, as far as I know. HFCs might just break it up and then combine it again, except that would take more energy than it created, in theory...)
NASA also uses tons of oxygen for their rockets. There is no oxygen in space so they need a ton for when the rocket hits thin atmosphere or the rocket will go out.
Tricky, that's the price a litre in Australia. There are 4 litres in a gallon, which means we pay $4.60 a gallon.
Using corn to produce ethanol has a downside, as it reduces the amount of arable land available for food production, driving up food prices. It's not just the corn price, but all the other crops that might have been grown and all the animals (meat) that are fed corn.
I have personally been adjusting my fuel usage patterns over the last couple of years as I live in a country area and we pay around $5.00 a gallon Aus. for petrol.
So I drive less and walk more. I don't drive unless I really have to, either to get to work some miles away or to visit family, some hundreds of miles away.
We are at peak oil, so get used to fuel prices continuing to rise.
Last edited by Rodri; 10-18-2009 at 03:48 AM. Reason: Because I made a stupid blunder
PEACE
Who me?
Sorry it's old age I think.
PEACE
Ouchers. When prices climbed up to nearly $4 a gallon here a while back, people nearly rioted.
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