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AJHunter
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 Posted: Tue Feb 09, 2010 9:44 pm Post subject: |
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| ShakeyAir wrote: | feasible:
1. sex in space-- has to be 0 gravity. apparently theres a lot of problems with that..
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It doesn't have to work. It would open up so many fun "ways"!
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AJHunter
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| Posted: Tue Feb 09, 2010 9:46 pm Post subject: |
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| Ronin Catholic wrote: | I read a story called "All you zombies" in which a single person, as a result of time travel, was his own mother, father, and daughter. It took place during a time travel war.
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did you read it or was it on Escape Pod? It's a great story!
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AJHunter
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| Posted: Sat Feb 13, 2010 12:22 am Post subject: |
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| James Paige wrote: | | And somebody was telling me about a time travel story where somebody becomes his own father and his own mother (after a sex change in the technologically advanced future) but I can't remember the name of it. |
All You Zombies
I heard it on Escape Pod. Really awesome story, has a reference to the song "I'm My Own Grandpa". 
SPOILER:
Oh, and it wasn't a total sex change. He was a hermaphrodite. Then the sex change and he was a bar tender. Then his own recruiter.
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Bagne
ALL YOUR NUDIBRANCH ARE BELONG TO GASTROPODA
Joined: 19 Feb 2003
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| Posted: Fri Feb 19, 2010 5:37 am Post subject: |
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Oops!
I didn't mean QED - I was probably saying that because that's what Feynmann talks about in all of his videos. No ... I mean QFT. Quantum Field Theory! The theory used by the Standard Model of physics.
I just found an introductory book :-D
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msw188
Joined: 02 Jul 2003
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| Posted: Fri Feb 19, 2010 8:04 am Post subject: |
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Hm, how far have you gotten with Physics and Mathematics? I did a quick bit of reading, and it sounds like you will need a solid grasp of single particle quantum dynamics, as well as a powerful knowledge of operator theory, and maybe differential geometry and abstract algebra leading to gauge theory.
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Bagne
ALL YOUR NUDIBRANCH ARE BELONG TO GASTROPODA
Joined: 19 Feb 2003
Posts: 518
Location: Halifax
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| Posted: Fri Feb 19, 2010 9:52 am Post subject: |
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Often text books teach you the background you need to know.
My quantum's OK, I think. I was taking a 4th year QM class and by the end, the professor was drawing Feynmann diagrams - however, this was extra material, and by this time I was rather lost. I'll probably have to go over a lot of my notes, review second quantization etc.
I don't recognize the term "operator theory", although we did a lot of work with bizarre operators in one of my quantum classes: creation/annihilation operators...
(Is this "a-dagger" I see before me? Come, let me clutch thee!
Lolololol! Get it? Maybe not ... the joke is notation-specific. )
I also remember throwing the hamiltonian operator into exponentials. That was weird.
I did some differential geometry in a GR class - but my understanding of it is pretty lousy. Anyways, that doesn't matter, I can't imagine QFT being taught in anything but a flat space-time. You'd only need to use the minkowski metric, and I can do that.
I've done lots of gauge stuff in classical E&M, and a little teeny bit of relativistic gauge stuff in QM :-S
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