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Strange Question: Time Difference between stars
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KLiK Send message Joined: 31 Mar 14 Posts: 1304 Credit: 22,994,597 RAC: 60 |
Perhaps we should try Stardates .... Not entirely true! If you travel above speed of light, then the time dilatation form Lorenz euasions don't inflience you or your mother on Earth. Time passes equaly, only distance converge & move around. To this date, Star trek is the only true & realistic movie...except for the Gravity & 2001/2010... non-profit org. Play4Life in Zagreb, Croatia, EU |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
Too big "if" to reside in modern SETI@home science section. For now it belongs to "wishes and dreams" section mostly. |
Bob DeWoody Send message Joined: 9 May 10 Posts: 3387 Credit: 4,182,900 RAC: 10 |
[quote][quote] Where is your proof? No scientist I know of has ever proposed that ftl will behave that way. Star Trek is pure fantasy in these matters. Bob DeWoody My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events. |
Julie Send message Joined: 28 Oct 09 Posts: 34041 Credit: 18,883,157 RAC: 18 |
The Universe has 11 dimensions, go figure.. http://en.wikipedia.org/wiki/Introduction_to_M-theory rOZZ Music Pictures |
William Rothamel Send message Joined: 25 Oct 06 Posts: 3756 Credit: 1,999,735 RAC: 4 |
Doesn't Quantum Theory/Mechanics, allow the possibly that particles can be in two different places, at the same time? Actually they say that an electron's position is actually given by a probability distribution and in determining it's location actually "collapses the probability distribution function". So: the electron could be anywhere and the cat could be dead or alive--you won't know until you look. I have trouble accepting that the cat is in both states and the electron is everywhere however. It's sort of like this: if you have two piles of cards--one has all four aces only and the other is a normal deck containing all 52cards. If someone hands you an ace you won't know which deck it came from until you look. I claim that it could have come from either deck but in fact it came from only one and when you look you can determine which one it was. |
KLiK Send message Joined: 31 Mar 14 Posts: 1304 Credit: 22,994,597 RAC: 60 |
[quote][quote] Yes it did...Einstein in his teory of relativity...when he said that space-time can be wraped in a way to travel thorugh space, bending the fabric of space! Like some wormholes (which teoretically exists), you can travel wast distances in definite portion of time...so time is fixed, space moves... Similar thing was proposed on Alcubierre drive... So NO, I don't think Lorentz transformations work on speeds >= c! They only work till speed of light... But it can give you "fanthom appearance", if you travel towards obeserver...somthing like this has been proposed in Picard manuever... ;) non-profit org. Play4Life in Zagreb, Croatia, EU |
Bob DeWoody Send message Joined: 9 May 10 Posts: 3387 Credit: 4,182,900 RAC: 10 |
Maybe time stays fixed to the person in the warp bubble, but not for everyone else. I have never read that time even stays fixed to those in transit. Bob DeWoody My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events. |
Julie Send message Joined: 28 Oct 09 Posts: 34041 Credit: 18,883,157 RAC: 18 |
Sigh ................... Yes. If only to have a decent conversation with my son in law:)) rOZZ Music Pictures |
anniet Send message Joined: 2 Feb 14 Posts: 7105 Credit: 1,577,368 RAC: 75 |
Would you let your daughter marry a theoretical physicist? Yes probably :) And I don't think I'd worry about it at all :) *pause to weigh up accuracy of expressed claim* ...the cat is either dead or alive... erm... unless they had a cat... or if they asked to borrow a box, and then told me they were getting a cat... I think under those circumstances I might pop in on them a bit more than usual :) ...as for trying to go down the route of "letting" her or not... yeah right :) Me and whose army precisely are we talking here? :) edit: and what Julie just said makes a lot of sense too! :) |
Julie Send message Joined: 28 Oct 09 Posts: 34041 Credit: 18,883,157 RAC: 18 |
Would you let your daughter marry a theoretical physicist? :)))))))))))) [edit]otoh... :))))))))))))))))))) + eternity (too tired to look up the sign and copy it, the eternity sign:) rOZZ Music Pictures |
Julie Send message Joined: 28 Oct 09 Posts: 34041 Credit: 18,883,157 RAC: 18 |
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Odysseus Send message Joined: 26 Jul 99 Posts: 1808 Credit: 6,701,347 RAC: 6 |
On a Mac it’s a single (modified) keystroke, option-5, like this: ∞. |
Julie Send message Joined: 28 Oct 09 Posts: 34041 Credit: 18,883,157 RAC: 18 |
∞ ∞ ∞ ∞ ∞ ∞ ∞ ý Nope, get this.. ý Strange... rOZZ Music Pictures |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
Seems this thread gone too far offtopic. But just to defend quantum theory from some vulgarizations expressed in this thread: no, it's not just "one or another until they look", it's real superposition of both states. To continue education on topic look description of experiments with electrons difraction for example. Interference picture exist if and only if the path of electron unknown. But that interference exists objectively, it's part of our reality that electron should "pass" both ways, not just our lack of knowledge about what way it passed. The issues with non-local character of quantum theory are still unresolved. So it's the place where real physics and science fiction could intersect. |
Julie Send message Joined: 28 Oct 09 Posts: 34041 Credit: 18,883,157 RAC: 18 |
Seems this thread gone too far offtopic. :D It is Shabbat.. rOZZ Music Pictures |
William Rothamel Send message Joined: 25 Oct 06 Posts: 3756 Credit: 1,999,735 RAC: 4 |
Subsequent work on the two-slit experiment has offered alternative information on why we see what we see. Can you explain the idea of a "Superposition of two states" and why only two if you believe Feynman. So: is it A and B ? or is it A or B ? I suggest it is the exclusive OR Perhaps I can shed some light on the interaction between queries (information) what we call reality and probability: Since we have Schrodinger's cat, maybe we can also have: DADDIO's KITTENS My brother calls and says" My cat has just had two kittens would you like to have them?" I ask :"is one of them a Male ?" He says "yes". In this case the odds of the other being a male are 1/3. (yes that's correct). But: If I had asked "is the first one a male?" and got the same "Yes" answer; now the odds of the second being a male are 1/2. So you see there is a strange subtlety in how we gather information and how it affects the likely-hood of what we find to be true in a given instance. |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
Subsequent work on the two-slit experiment has offered alternative information on why we see what we see. Any state can be represented as summation on full orto-normal basis states with corresponding weight coefficients. It can be sum of some finite number of elements (if basis finite), it can be sum of infinite number of elements. There are books that can help, for example this one: https://archive.org/details/QuantumMechanics_104 |
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