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- Path: sparky!uunet!ulowell!news.bbn.com!noc.near.net!transfer.stratus.com!bigbootay.sw.stratus.com!det
- From: det@bigbootay.sw.stratus.com (David Toland)
- Newsgroups: sci.astro
- Subject: Re: Averting doom
- Date: 27 Dec 1992 16:20:14 GMT
- Organization: Stratus Computer, Software Engineering
- Lines: 22
- Message-ID: <1hkl3uINNrq8@transfer.stratus.com>
- References: <1992Dec26.153304.8294@stortek.com> <1992Dec27.070033.18932@hpcvaac.cv.hp.com>
- NNTP-Posting-Host: bigbootay.sw.stratus.com
-
- In article <1992Dec27.070033.18932@hpcvaac.cv.hp.com> billn@hpcvaac.cv.hp.com (bill nelson) writes:
- >Also, to move the Earth into a higher orbit, you would not speed the
- >Earth up - you would slow it down. The Earth orbits the sun about
- >3 miles/second faster than Mars does.
-
- A little knowledge.....
-
- Although the velocity of Mars along its orbital path *is* lower, its
- angular momentum is higher. You would indeed need to *increase* the
- Earth's velocity in its present orbit, which would paradoxically result
- in it attaining a greater distance from the Sun with a *lower*
- orbital speed. The increase in speed would need to be applied over
- a multiple of 1 revolution if you want the final orbit to also remain
- nearly circular.
-
- By the way, Niven's enginering, although not perfect, stands up better
- than that of *most* SF writers...
- --
- --------------------------------------------------------------------------
- All opinions are MINE MINE MINE, and not necessarily anyone else's.
- det@phlan.sw.stratus.com | "Laddie, you'll be needin' something to wash
- | that doon with."
-