Subject:
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Re: Geography (was: We'll take in your poor....)
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Newsgroups:
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lugnet.off-topic.geek
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Date:
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Wed, 14 Jul 2004 16:27:35 GMT
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Viewed:
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2369 times
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In lugnet.off-topic.geek, Don Heyse wrote:
> In lugnet.off-topic.debate, Dave Schuler wrote:
> > In lugnet.off-topic.debate, David Laswell wrote:
> > > In lugnet.off-topic.debate, Christopher L. Weeks wrote:
> > > > Yeah, but LA to Boston is only 5 hours...he was flying east.
> > >
> > > Last I checked, it's faster to fly west than east, since you'd be
> > > flying into the planetary rotation instead of overtaking it.
> >
> > Does this apply to driving, as well? If so, I may have found a new
> > excuse for being late to work.
> >
> > But a more serious question: How big a factor *is* planetary rotation
> > vis a vis commercial jet travel? I would have thought that, because
> > flights heading east or west both start at velocity=zero relative to
> > the Earth's rotation, the rotation wouldn't be that big a deal. Is it
> > correspondingly harder to decelerate for landing when traveling west?
> >
> > Still, I've never really thought about this before, so I'm easily
> > able to accept that I don't know what I'm talking about.
>
> I think the issue is the jet stream. It moves eastward somewhat faster
> than the ground, so going east you have a tailwind, and going west you
> have a headwind.
I'll buy that, except that the original claim seemed to be that the rotation
itself was the factor, not the jetstream. Admittedly, I may have misunderstood
the framing of the problem: perhaps the question of east/west travel already
assumed the impact of the jetstream, but I didn't realize it.
> Better blame the dog.
I'll just claim that the Pentagon destroyed the only existing copy of my
work-schedule, which was on microfiche.
Dave!
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Message is in Reply To:
 | | Re: Geography (was: We'll take in your poor....)
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| (...) I think the issue is the jet stream. It moves eastward somewhat faster than the ground, so going east you have a tailwind, and going west you have a headwind. Unfortunately for you, the mountains in PA aren't high enough for this to make you (...) (20 years ago, 13-Jul-04, to lugnet.off-topic.geek)
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