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|    rec.arts.sf.science    |    Real and speculative aspects of SF scien    |    45,986 messages    |
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|    Message 44,229 of 45,986    |
|    Alien8752@gmail.com to MrAnderson    |
|    Re: Waterskiing spacecraft manevuering    |
|    31 Jul 16 19:35:13    |
      From: nuny@bid.nes              On Sunday, July 31, 2016 at 2:12:07 PM UTC-7, MrAnderson wrote:       > Hi, sorry for abandoning the topic for some time, I was on holiday trip :)               You allowed your Real World life to interfere with your Internet presence?               How DARE you? ;>)              > About quotes, I just don't know how to make them, must I type some kind of       > command?               I use the Google Groups HTML interface in Firefox. Clicking the "Reply"       arrow opens a box in which to type the reply with the post I'm replying to       already included, and it comes equipped with indenting carets and the name of       who I'm replying to.               I just put my cursor where I want to type something and hit "enter" three       times to make space.               Are you using a regular newsreader? How you get quoted material to display       in a reply will depend on which one you use and how you have it set up. The       only newsreader I ever used was Thunderbird and it also displayed the post I       wanted to reply to- no        special effort required. I *think* no effort was required...               If it's really a problem you can just copy-and-paste the bits you need into       your reply, I'd guess. Remember to set them off so it's clear that somebody       else wrote it; that's what those stacks of carets at the left margin are for.               > I will soon try to make drawings based on our thoughts, and scan them and       > post on Deviantart website.               Cool!              > Your description for warship is really awesome, I hope I can transfer it to       > paper ;D               I did a quick ugly scribble in MSPaint, completely out of scale, just to       check for design conflicts. One thing; if there's a railgun in the spine it       either shoots out the end where the drive section attaches (after it detaches       and the spine turns        around of course) or there has to be a hole in the middle of the reeled-in       crew module for it to shoot through.               If it will help at all I'll upload it to Google Photos.               > Thanks for explaining how this Valkyrie radiator works, it's kinda like this       > magnetic dust - something, described on Atomic Rockets. But without magnets.               Yes. Cool idea, too bad it isn't mine.               > When ship decelerates tail - first, engines work, so wouldn't exhausted       > plasma burn all particles and dust? Like active shielding system.               Hmmm. Maybe not "burn" exactly, but the exhaust plume will indeed form a       huge, fast-moving, expanding cloud in front of the decelerating ship, which       should shove all but the biggest rocks and whatnot out of the way. Anything       too large the point defense        lasers can melt/vaporize. But, the ship will still be vulnerable when it turns       around before the deceleration burn begins, so the space it does that in       should be fairly clean.               Also the ship will be continuously moving *into* that exhaust plume but I'd       guess (hope) that it would have cooled to the not-dangerous point by then.               One more thing- remember the engines are great big X-ray floodlights.       They'll probably be detectable for many millions of miles. Also, the exhaust       plume and whatever aleady-present gases you're running through will be       fluorescing their asses off in the        visible part of the spectrum. It will be a fearsome thing to see, getting       bigger and brighter every day.               On final thing- do you know the Kzinti Lesson? I'm wondering exactly how far       away those engines will be able to deliver a lethal radiation dose. If you're       not flying into an already-in-progress shooting war you might not want to have       your deceleration        vector point directly at an inhabited planet or colony, or they might all be       fried dead by the time you get there.                      Mark L. Fergerson              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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