Invoking The Voyagers Against Id |
Invoking The Voyagers Against Id |
Oct 24 2005, 03:04 PM
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
Cornell President Rawlings Condemns Intelligent Design
Drawing from sources ranging from Cornell's founders to Voyager space missions, Interim President Hunter R. Rawlings III condemned the push to teach intelligent design in public schools Friday. The attack came during the president's State of... http://www.cornellsun.com/vnews/display.v/...4/435c7762cf891 "The desire to understand the world and the desire to reform it are the two great engines of progress." - Bertrand Russell -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
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Nov 18 2005, 08:30 PM
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Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
Well, yeah, a black hole would be the only thing that would have the raw power to strip material off of a neutron star. But I have serious questions as to what the process of such mass-stripping would look like -- it would seem to me that it would be so difficult to get fragments of a neutron star to break off of their parent body that it would tend to retain its cohesion until after it was safely within the Schwartzchild radius of the black hole...
-the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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Guest_Richard Trigaux_* |
Nov 18 2005, 08:47 PM
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Guests |
QUOTE (dvandorn @ Nov 18 2005, 08:30 PM) Well, yeah, a black hole would be the only thing that would have the raw power to strip material off of a neutron star. But I have serious questions as to what the process of such mass-stripping would look like -- it would seem to me that it would be so difficult to get fragments of a neutron star to break off of their parent body that it would tend to retain its cohesion until after it was safely within the Schwartzchild radius of the black hole... -the other Doug Not sure. remember that a neutron star is about the same radius than the Schwartzchild sphere of a small black hole. So we can imagine that part of it is in, while most of it is still out. But at this stage, anyway, the complete coalescence is within some minutes or seconds of time, and the orbit is even no more circular, it is chaotic (and still more chaotic if the black hole rotates). So we can imagine that the neutron star is eaten by bits, each times it gets close enough. Anyway a neutron star is something extremely solid, but even this solidity is very weak in front of its gravitation. I am sure, there are some known example of "neutron star quakes" which occur when the rotation speed changes, and the shapes changes from more to less elliptic. So the gravitation of a neutron star is much stronger that its material solidity. Anyway a hand into the Schwartzchild sphere and the remainder of the body out, nothing can resist to this. We can imagine this tremendous catastrophe: each stripping is an enormous burst of energy, a series of cracks for some seconds before the remainder of the neutron star is swallowed, or it explodes from having no more enough gravitation left to resist the tremendous pressure of the neutronic matter. |
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Nov 18 2005, 10:07 PM
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
This fellow co-authored papers with Ward and Brownlee on Galactic Habitable Zones (GHZ). According to him, it would seem that Earth is the only planet in the entire galaxy in a life happy place. And guess how we all got here?
http://www.spacedaily.com/news/life-01o.html Gonzalez, Iowa State’s "Wizard of ID," on defensive Iowa State astronomy assistant and Intelligent Design supporter Guillermo Gonzalez says his critics have got him wrong. By Kevin Ferguson (November 10, 2005) http://www.stnews.org/articles.php?categor...article_id=2170 -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
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Guest_Richard Trigaux_* |
Nov 19 2005, 12:24 PM
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QUOTE (ljk4-1 @ Nov 18 2005, 10:07 PM) This fellow co-authored papers with Ward and Brownlee on Galactic Habitable Zones (GHZ). According to him, it would seem that Earth is the only planet in the entire galaxy in a life happy place. And guess how we all got here? http://www.spacedaily.com/news/life-01o.html Gonzalez, Iowa State’s "Wizard of ID," on defensive Iowa State astronomy assistant and Intelligent Design supporter Guillermo Gonzalez says his critics have got him wrong. By Kevin Ferguson (November 10, 2005) http://www.stnews.org/articles.php?categor...article_id=2170 I am afraid that, for the moment and for still a long time ahead, the hypothesis of intelligent life on other planets is intestable, so that we cannot make any statement about it, either positive (many civilizations) or negative (we are alone). We can only extrapolate from known astrophysical conditions, which say that life possibilities are many in the universe, while observing that we never reveived any visit from another civilization. This condradiction by itself is a puzzle. As to the arguments of the studies themselves, they say our galaxy and the Sun are priviledged. This is not true. Our galaxy is very ordinary. The Sun, they say, has a special orbit, avoiding the dangerous regions of the nucleus. But the large majority of stars are such. They say the Sun has a special amount of "metals". Again many stars are metal-rich. We can suspect that metal-poor stars still form planets, and even that the spiraling of the primordial accretion ring left a given amount of planets in orbit, so that the size of planets does not depends on the metallicity of the star (unless of course they are metal-zero). QUOTE (first link) "The intense radiation and gravitation of a spiral arm would cause disruptions in our Solar System just as surely as if we were closer to the center of the Galaxy. this and the following discution is bogus: the galactic gravitationnal field in arms is still very weak compared to the one in the solar system. And anyway there are billion of stars in the outer skirts of the galaxy which never cross the arms, so it is sheer exageration to say that our Sun would be alone to do so. This looks rather as an one-way argumentation to convince unacknowledged public than a fair scientific estimate of possibilities.If I understand well, ID proponents are trying to persuade us that we are alone. This is a strange contradiction for people who say they are spiritual (spirituality loves life, so it can only hope to find many inhabited planets and foster research and welcome any discovery in this domain). This may indicate that ID proponents are not spiritual people, but religious nuts or fundamentalists (Earth only adobe for life is a re-hash of obscure Middle Age dogmas). All this ID affair is really a mess, because finding evidences of a purpose for the universe (even tenuous, like anthropism) is an enthraling discution. But for long this topic will be associated with religious nuts who want to come back to the Middle Age. |
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