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Airbus electric aircraft takes to the skies
Imagine taking a peaceful flight, gliding along without much noise or any fuel, effortlessly descending into the airport without a trace of emissions. (www.cnn.com) 更多...Sort type: [Top] [Newest]
I agree with "zero emissions": it's simply emissions shifting to somewhere- and sometime- else. And with every energy transformation, there is some energy loss. The piece did mention that the cost is 2¢ per hour. It also mentioned that the batteries, good for 0.5 hour, have 60kw. That puts its use at 120 kw per hour. At our local average of about 11¢ per kwh, that puts the cost at around $13.20 an hour, not 2¢. It IS a lot less than av-gas, etc, but I hope whoever did these calculations didn't also engineer the plane!
"zero carbon dioxide emissions in flight" Does that mean the occupant(s) hold their breath the whole time?! Or maybe they only exhale into big plastic, non-biodegradable bags that are then sent to carbonated drink factories running on non fuel-burning power... LOL!
They can't fart either!
But THAT would supply some 'fuel' for running a... wait, you're right, there'd be some of those 'carbon emissions' then. Dang! This problem is harder than I thought!! ;-)
all good fun ...
as I understand it, farts are mostly the same gases as normal atmosphere (nitrogen & oxygen) plus some CO2 similar to normal breathing out, plus a small amount of flammable gases hydrogen and/or methane (apparently only about half of the population produces methane depending on the gut bacteria), plus traces of the smelly stuff punching above its weight. Now, if there was a market for cows travelling ....
as I understand it, farts are mostly the same gases as normal atmosphere (nitrogen & oxygen) plus some CO2 similar to normal breathing out, plus a small amount of flammable gases hydrogen and/or methane (apparently only about half of the population produces methane depending on the gut bacteria), plus traces of the smelly stuff punching above its weight. Now, if there was a market for cows travelling ....
We are not talking about free energy... We are talking carbon free emissions.. :) Of course, we could invent a plane that ran on farts, and have everyone's seat fitted with special vacuum devices in the seats and all passengers fed pinto beans and or chili 30 minutes prior to flight. You get credit on your ticket when you land based on how much energy you produce!
Regardless of what the radical environmentalists, liberal politicians, misleading scientists, and other of similar ilk, carbon is not only a very small portion of the atmosphere (there's more water than carbon in air) but it is also a vital component to life. Were it not for carbon we would not have any plants and without plants we wouldn't have any animal life.