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- Newsgroups: sci.astro
- Path: sparky!uunet!boulder!ucsu!spot.Colorado.EDU!knapp
- From: knapp@spot.Colorado.EDU (David Knapp)
- Subject: Re: PUTTING VENUS IN AN ORBIT SIMILAR TO THE ORBIT OF THE EARTH
- Message-ID: <1992Sep15.135430.1139@ucsu.Colorado.EDU>
- Keywords: Altering, VENUS, Orbit
- Sender: news@ucsu.Colorado.EDU (USENET News System)
- Nntp-Posting-Host: spot.colorado.edu
- Organization: University of Colorado, Boulder
- References: <abian.716517308@pv343f.vincent.iastate.edu>
- Date: Tue, 15 Sep 1992 13:54:30 GMT
- Lines: 74
-
- In article <abian.716517308@pv343f.vincent.iastate.edu> abian@iastate.edu (Alexander Abian) writes:
- > In our Solar System, the planet VENUS is the only planet which sizewise,
- >masswise and substancewise closely resembles our planet Earth.
- > The main difference between Venus and Earth lies in their orbits around
- >the Sun.
-
- I wouldn't call it the 'main' difference, and it is only ~.3 au closer. Not
- that much. That is not the reason it is so hot there.
-
-
- > For one thing, Venus stays around 67 million miles away from the
- >Sun, whereas Earth stays around 93 million miles away from the Sun. As a
- >consequence of the corresponding greenhouse effects, Venus' average surface
- >temperature is around 900 degrees F, whereas Earth's is around 60 degrees F.
- >Venus, being an extraordinarily hot planet is unsuitable for sustaining life
- >(as we know it).
-
- I *knew* you were going to say that. That is *not* the reason it is hotter.
-
- > However, if we alter Venus' orbit and make it similar to the Earth's
- >orbit, then the gradual process of generating life sustaining ecology on
- >Venus will evolve automatically. As a result, a second Earth-like planet
- >will be created which, in due course, will be readily and easily populated
- >by the human species.
-
- This is incorrect.
-
- > The present-day tendencies of Space Scientists and Space Technology
- >consist in keeping Venus or Mars in their existing orbits and trying to install
- >on them machinery which will produce life-sustaining conditions. This approach
- >most likely will not yield the desired results. Indeed, creating life-
- >sustaining ecology on the planets (like Venus or Mars) whose present cosmic
- >parameters, to begin with do not allow the existence of life on them, seems
- >improbable and impractical.
- > As mentioned above, a practical way for creating a life-sustaining ecology
- >say, on Venus, is to put Venus in an orbit similar to the Earth's orbit, to
- >begin with. This is the way, the only way. Philosophically:
- >
- > THE ORIGIN OF SPECIES BY MEANS OF NATURAL SELECTION, OR THE PRESERVATION
- >OF FAVOURED RACES IN THE STRUGGLE FOR LIFE.
- > C. DARWIN (1859)
- >
- > THE FUTURE OF SPECIES BY MEANS OF RATIONAL ALTERATION OF COSMOS, OR
- >THE PRESERVATION OF INTELLIGENT RACES IN THE STRUGGLE FOR LIFE.
- >
- > A. ABIAN (1992)
- >
- >Alexander Abian
- >Professor of Mathematics
- >Iowa State University
- >Ames, Iowa 50011
- >USA
- >
- >phone: (515) 294-8135
- ><abian@iastate.edu>
- >
-
-
-
- Professor Abian, you will find that pretty much *any* text on planetary
- science will detail why the proximity of Venus is not the main reason for
- it's surface temperature. Even if you moved it out to Mars' orbit, it
- would still be too hot. The problem lies in the extreme greenhouse
- effect which itself is a result of the lack of CO2 fixation to stable
- compounds. CO2 fixation is also a problem with Mars, although that is
- only on of the 'problems' there.
-
- Moons and Planes by William K. Hartmann, Wadsworth Publishing, would
- be a great place to start reading about this.
-
-
- --
- David Knapp University of Colorado, Boulder
- Perpetual Student knapp@spot.colorado.edu
-