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Future Space War
In article ,
Russell Wallace wrote: On Wed, 31 Mar 2004 13:40:13 +1200, Rupert Boleyn wrote: That's just plain wrong. Sperm cells have a _lot_ of mitochondria - they're what provide a cell with energy, and sperm use a lot of energy wriggling around. However, for some reason (possibly that they're 'worn out', last I heard no-one really really knows) the sperm's mitochondria are flagged with a marker that says to a cell's clean-up machinery 'for disposal'. The reason is that otherwise the two sets of mitochondria would fight to the death, weakening the cell. (There's a plant species that fails to do this with their chloroplasts, with this result.) While they are so flagged, there is a positive probability that some mitochondrial DNA will be interchanged with the egg mitochondria before the disposal. There are know cases of people having diseases due to mitochondrial DNA which could only have come from the father. -- This address is for information only. I do not claim that these views are those of the Statistics Department or of Purdue University. Herman Rubin, Department of Statistics, Purdue University Phone: (765)494-6054 FAX: (765)494-0558 |
#53
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Robert Heinlien, author of the book "Star Ship Troopers" who was I
believe a WW2 Naval Officer, but I expect had alot of experiances with USMC beach assaults? Mike Jukka Koivusaari wrote: "Henry Spencer" kirjoitti ... In article , Master and Owner, Beryl J. Turner III wrote: One to consider that a common tactical axiom is that whomever has the high ground, has the advantage... Yes and no and kind of. Consider that there has been little interest in military occupation of Mount Everest. It is not overlooking anything , is it? You put a mass-driver on the moon, calculate the ballistics and wham! Calculate the energetics instead of the ballistics. Lunar catapults (they are generally not mass drivers -- that's a specific type of catapult) are massively overrated as weapons. I'm sorry to shatter illusions, but Heinlein blew this one badly. What is a Henlein ? Their power supplies have to be too big and the waste heat would be too hard to hide. Assuming you control the whole Moon, you can have 3000km of rock between you and the observer . Besides if somebody on Earth spots it , so what. You have 3 days to scorch their interceptor with dircet energy weapons . And under lunar conditions even old fashioned AA-guns would provide extremely effective point defence -- -JK http://www.kolumbus.fi/jik/ "Paska on hyvää." - miljoona kärpästä |
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Very true. It helps to have people to teach the skills necessary to
survive.. You can only do so much with books and knowing how to read. Mike |
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Also it helps to have a voice that is different than the norm, also
explains a number of actors who are love gods.. Mike |
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Read it again - the book specifically noted that they built (and
later used) a backup catapult, with its own fusion plant, concealed to avoid bombing by the UN forces. And that the secret weapon remained a secret long after the war ended. Which book was this? I've read Starship Troopers and I'm trying to figure out which of his other ones would be good/similar to that one. |
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"Ian Stirling" wrote in message ... In sci.space.tech Roger Moore wrote: "Ami Silberman" writes: There are no moon sized asteroids. Only because anything that big in orbit around the sun is called a planet rather than an asteroid. I'll agree, though, that it would be very difficult for something the size of the moon to hide well enough that we wouldn't see it until it was just 25 years away. FWIW, NASA has just announced the discovery of a new object in the Kupier belt that is estimated to be significantly smaller than the moon and several times further away than Pluto. I'd expect that we would have caught anything bigger and closer than that already. Things can have been further away than pluto for the entire history of photographic astronamy, and still have periapsis closer in. It's not inconcievable that something large could have a very long period and interact with Pluto/Uranus to turn it into a large impactor with only a few years warning. Vanishingly unlikely, yes. Have there been any proposals to stare at Uranus/Pluto/Jupiter/Saturn looking for gravitational interactions? It's not even necessary. Go look at the images of Shoemaker-Levy's impact(s) on Jupiter. A long period comet can easily put paid for us. After all, the dinosaurs remember... |
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"Bob Martin" wrote in message om... Read it again - the book specifically noted that they built (and later used) a backup catapult, with its own fusion plant, concealed to avoid bombing by the UN forces. And that the secret weapon remained a secret long after the war ended. Which book was this? I've read Starship Troopers and I'm trying to figure out which of his other ones would be good/similar to that one. "The Moon Is A Harsh Mistress" |
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