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Time Travel
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nightbat wrote
Lloyd Jones wrote: nightbat Subject answer: Yes Jones, it takes time to travel in whichever direction or deduce ETA, next question. the nightbat |
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Just wondering what people think about it.
LJ |
#4
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"Lloyd Jones" wrote in message
... Just wondering what people think about it. LJ impossible. At least in the standard H.G. Wells type backward and forward time machine. Periodically when I see people try to argue that time travel is possible, they seem to really be talking about time dilation. They're still going along the flow of time, just slower than everyone else. That's probably possible, if you can approach lightspeed, or slingshot around a blackhole, or some such thing. But unless you can put it in reverse and end up at last Tuesday, it's not really time travel. And that's not possible. |
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nightbat wrote
Lloyd Jones wrote: Just wondering what people think about it. LJ nightbat It is a violation of cause and effect, of causality non real world premise in reference theoretically to reversing the arrow of time to prevent or effect past cause. As applied forward, it is a relative frame dependent one and possible to save task or event taking time by increasing ones momentum by natural or artificial means, better task handling, use of time saving devices, tapping other entity labor (mental-physical) versus ones own, relative to normal time dependent, observed or known particular taking motion. The successful freezing and thawing of a specimen body, within limits back to normal active vivo, natural or man made unsuccessful cryogenics, would still not permit reverse time travel but permits extreme seasonal temperature stress abeyance, or overriding, and allowing normal time percentage cellular activity hibernation, or slow down of negative in normal time degenerative effect. The clock applied frame would observe physical or cellular slow down for the subject specimen and march on normally for everything else not low temperature preserved. the nightbat |
#6
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"Lloyd Jones" wrote in message ...
Just wondering what people think about it. LJ There used to be speculation that one could move backward and forward in time by moving in the vicinity of a naked singularity, the singularity being exposed to the universe its extreme spin. Don't hear too much about that anymore. Double-A |
#7
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"Lloyd Jones" wrote in message ... Just wondering what people think about it. LJ We don't know time as a physical medium that we can move freely within like our three dimensional world. The only source of times existence we know, is we mark it's passage by a set of parameters determined by the rotation of the earth. So we can mark times passage and record events that happened, but until we discover the actual medium that it exists in, we can only watch time slip by. --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.730 / Virus Database: 485 - Release Date: 7/28/2004 |
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In message k.net,
Algomeysa2 writes "Lloyd Jones" wrote in message ... Just wondering what people think about it. LJ impossible. At least in the standard H.G. Wells type backward and forward time machine. Periodically when I see people try to argue that time travel is possible, they seem to really be talking about time dilation. They're still going along the flow of time, just slower than everyone else. That's probably possible, if you can approach lightspeed, or slingshot around a blackhole, or some such thing. But unless you can put it in reverse and end up at last Tuesday, it's not really time travel. And that's not possible. Actually, one of the embarrassing things about relativity is that it does allow time travel. There's a huge literature on things like closed time-like curves. Granted, some of the equations require things like a rotating universe, which doesn't apply to ours, but there are others. -- What have they got to hide? Release the Beagle 2 report. Remove spam and invalid from address to reply. |
#9
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"Lloyd Jones" wrote in message
... Just wondering what people think about it. Into the future, yes. Into the past, no. |
#10
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In message .net, Paul
Lawler writes "Lloyd Jones" wrote in message ... Just wondering what people think about it. Into the future, yes. Into the past, no. There's an article at http://www.daviddarling.info/encyclopedia/C/closed_timelike_path.html with some very interesting internal links. I'd never heard of a Gott Loop or a van Stokum Cylinder, though it's actually the device in Larry Niven's "Rotating Cylinders and the Possibility of Global Causality Violation" and Poul Anderson's "The Avatar". "Rotating Cylinders..." is a paper by Frank Tipler, so the question might be "does he cite van Stokum ?" (who published in 1937) The point of all this is that people found very early that relativity does allow travel into the past. |
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