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Comment: Re:What about a bus? (Score 1) 278

by praxis (#49587723) Attached to: New Study Suggests Flying Is Greener Than Driving

Basically, I was attempting to show that a claim that bus efficiency [much less than] (not sure how Slashdot wants me to typographically represent less-than less-than) car efficiency needs some data because a quick dig showed that it was far, far closer. You exemplified this closeness by showing that on fixed-length trips they are even closer than I claimed.

Comment: Re:What about a bus? (Score 1) 278

by praxis (#49587675) Attached to: New Study Suggests Flying Is Greener Than Driving

I agree that mpg is a poor metric for efficiency in passenger-miles. I used those, because that's what I found quickly and I did not want to put in the effort of conversion.

My post was not meant to be a rigorous study. I was merely asking the poster to who I was replying for their data, because my cursory look for their data did not show anything even resembling what they were claiming.

Comment: Re:What about a bus? (Score 5, Insightful) 278

by praxis (#49586795) Attached to: New Study Suggests Flying Is Greener Than Driving

On average, buses are far worse than cars for energy efficiency because of the low average load factor.

On what data is this assertion based? I spent a few minutes seeing if such data exist. I could not find data to support your claim that buses are far worse.

I found the following. A bus fuel efficiency is about 5 mpg [1]. That is with fifty-five passengers, which is the maximum capacity and therefore our lower bound. In my county, the average load-factor over all of 2012 was 479 million passenger miles divided by 44 million vehicle miles, or 10 passengers per mile.

Our average fuel consumption over number of passengers then is 50 mpg, which is not far worse than cars for energy efficiency. In 2006, the average mpg of a private vehicle on the road was about 20 mpg. Even with two people in such a vehicle, the average-loaded bus is better.

I did not dig very deeply; I was more trying to find your data and stumbled into data that seems to paint a different picture. It's quite possible that my data paints the wrong picture and you were using much more sound data, but because you did not provide it, I must ask for a citation now.

Which data had you used?

[1] http://www.nrel.gov/docs/fy00o...
[2] http://metro.kingcounty.gov/am...
[3] http://www.project.org/info.ph...

Comment: Re:Why even have a class ? (Score 1) 353

by praxis (#49577895) Attached to: University Overrules Professor Who Failed Entire Management Class

I was curious about how you came to believe and apply your generalization, because societal generations are interesting to me, and likely others in society. I don't care about your opinion of my personal education because that does not seem relevant to your opinion, your generalization, or your and my interaction.

Interestingly, you never did answer my actual question about candidates who went to schools that accept legacies but are not themselves legacies, which was the whole reason I posted in the first place. Instead, for an unknown reason, you gave me advice on how I might, if I wanted, get you to respect my education.

Comment: Re:Why even have a class ? (Score 1) 353

by praxis (#49572771) Attached to: University Overrules Professor Who Failed Entire Management Class

I phrased my question incorrectly; I'm sorry. How do you know which schools belong on your list of those that take legacies and those that do not? I could find no reliable published sources.

As to your second point: I don't care if you respect my education or not. I got my education to educate myself, not for your respect.

Comment: Re:There ought to be a law (Score 1) 114

and the law will not actually stop anyone from anything.

Laws aren't meant to stop things from happening.

When the people writing the law state that one of the purposes they are introducing the law is, wait for it, "deterrence", they, by definition, are meant to stop things from happening. You cannot really claim that what a people did was not meant to do exactly what the people doing it stated they wanted to accomplish.

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