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- From: 18084TM@msu.edu (Tom)
- Newsgroups: sci.space
- Subject: Terra-forming, The E-car
- Message-ID: <BuL8on.9s1.1@cs.cmu.edu>
- Date: 14 Sep 92 20:24:37 GMT
- Sender: news+@cs.cmu.edu
- Distribution: sci
- Organization: [via International Space University]
- Lines: 51
- Approved: bboard-news_gateway
- X-Added: Forwarded by Space Digest
- Original-Sender: isu@VACATION.VENARI.CS.CMU.EDU
-
- >>Perhaps Mars has life already. So what? ...
-
- >At the cost of possibly destroying a life form of which we know nothing,
- >thus costing science a golden possibility of examining, firsthand, an
- >extra-terrestrial life form.
-
- Sure, I believe in knowledge for it's own sake. But in the above discussion,
- I was assuming that understanding potential Mars-life would be a pre-requisite
- to terraforming, and possibly destroying any life there. Once that life is
- understood, maybe sampled, kept in a 'zoo', why not kill it, if we have to,
- to terra-form Mars? What has it done for us lately? :-)
-
- >Unfortunately, electric cars depend on energy even more than fossil-fuel cars,
- >>as they are less efficient (from the orignal source) than oil-powered
- cars now.
- >>To really get pollution-advantages from electric cars requires a new energy
- >>source, not a new way of using more coal and oil.
-
- >EXCUSE ME? Please support this. Every TECHNICAL article I've read on the
- >subject says the opposte - that seperating the power generation into a more
- >effecient (because car engines aren't) means of generating electricity, then
- >using an effecient electric motor would save energy.
-
- Perhaps the GM Impact, which doesn't use gears or brakes, but rather puts
- braking energy back into the motor, may have increased the efficiency of
- electric cars to near-fossil levels.
-
- But everything I've ever read says that converting crude oil into burnable
- fossil fuels, then converting that into electricity, then converting that
- into motion, is less efficient than skipping the electric step. With ceramic
- car engines (higher engine temperatures) I'm not sure how burning-in-the-
- plant will be more efficient than buring-in-the car. Perhaps you could
- post some excerpts from your TECHNICAL articles?
-
- As long as were at it, please include the energy-use and polluting
- potential for millions of pounds of lead batteries that must be replaced
- every year...
-
- And, I mis-spoke (wrote?) I should have said 'efficiency advantage', above,
- rather than pollution-advantage. The burn-in-a-plant scheme MAY have
- pollution advantages over burn-in-a-car, just because of the ease of
- putting the exhaust system in one place.
-
- -Tommy Mac . " +
- .------------------------ + * +
- | Tom McWilliams; scrub , . " +
- | astronomy undergrad, at * +;. . ' There is
- | Michigan State University ' . " no Gosh!
- | 18084tm@ibm.cl.msu.edu ' , *
- | (517) 355-2178 ; + ' *
- '-----------------------
-