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No Time Travel, Sorry
MOBE2001 writes "The bad news is that time does not change. Spatial velocity is given as dx/dt. Velocity in time(dt/dt) is nonsensical. As simple as that. In other words, no time travel to the past or the future, no motion in space-time, no wormholes and no hanky-panky with your great, great grandmother. There is only the changing present, aka the NOW. The good news is that distance is an illusion and we'll be able to travel instantly from anywhere to anywhere."
A link to "www.rebelscience.org/crackpots" is considered science news on Slashdot these days? Is this story supposed to be a joke? What's up with this?
Socialism: a lie told by totalitarians and believed by fools.
The people who wrote this article also wrote this... " I will argue that the messages to the seven churches of Asia are a metaphorical description of the organization and operation of the brain. I will further argue that the golden lampstand (Jewish menorah) symbolizes a seven-node sequence in brain memory." Hmm, it certainly is curious that the author of the article is not revealed. Probably some first year calculus student who was like "Holy guacamole! dt/dt = 1, Einstein and Hawking are crackpots! I must tell the world!"
This guy is good, but he's not nearly as entertaining or mind-warping as the TimeCube guy. Four days in one!!!
- Give a man a fire and he's warm for a day, but set him on fire and he's warm for the rest of his life.
OK, let's say that you and I race to 1:00pm tomorrow. You decide to stay right where you are and wait for 1pm to arrive. I, however, jump in my ship for a trip around the solar system at relativistic speeds and meet you there. When 1pm comes around we are both there, but you've aged like 24 hours while I've only aged a couple of minutes. I would say I have won because it took me less time to get there.
-- Thou hast strayed far from the path of the Avatar.
"...they are all based on a specific "definition" of time,..."
.5 = illusion still
Very true yet hard to convince folks that our perception of "time" is just and only that, our perception, filtered through sensory organs, language and symbols, thought and then socially acceptable explanations.
I suspect that time will show (heh) that our perception of our Universe and it's actions and what's really going on are very different -- we are severely limited by our perceptions and so see the Universe in a very specific way which isn't necessarily helpful in determining truth. Hopefully the quantum science folks will get us further down the path to the truth of space and matter, which will likely prove to be two different ways of seeing the very same thing. In other words, it's our perception which creates differences in "things" which otherwise may not be so very different after all.
The ancient Hindus deduced that the Universe is an illusion. The quantum science folks may reach the same conclusion impirically.
The math: illusion *
Layman's terms: What you sense _is_ your Universe, there is nothing more.
Everything in the Universe sucks: It's the law!
You have to use Christoffel symbols. Whip out your favorite copy of differential equations in curved coordinate systems, or read up on it here: http://en.wikipedia.org/wiki/Curved_spacetime
You're wrong. For the guy who travelled at the speed close to C time did slow down. Let's say that at the onset of the journey both planted a bonsai tree that grows at 1 inch per month. Upon the reunion, the earthbound astronaut's plant would be 12 inches tall while the traveller's plant would be only 1 inch high.
Your pizza just the way you ought to have it.
From http://www.rebelscience.org/Seven/bible.html:
;-)
(S)He writes:
"I started working on Animal (around 1995; see history) years before I formulated my biblical hypothesis. As I get more and more confident about the accuracy of my interpretation of the biblical metaphors, I will incorporate my findings into it. I hope to have it learn the game of chess on its own, including the rules of play. If my hypothesis is correct, there is no limit to how competent the program can be at playing chess. "
Do I really need to give a context?
(I hope I don't somehow offend any Christians out there- I've never heard of a denomination that believe's Jesus' real message was how to win at chess...)
And what if these events occur, but aren't time travel at all? For the sake of the argument, assume you have the powers of a god, and sit outside the universe. As it plays out, you take a snapshot of the universe as it is in 1955. You save this. You let it play forward til 1985... then, you pause the VCR.
You do your little god thing, rearranging everything in the universe as it should be according to your snapshot, with a few exceptions... Marty and the Delorean. He didn't travel back in time, though, to him it can look like nothing else. But by the metatime clock that you the god uses, time has rolled on as it always has, only the universe was partially reset once or twice. I like this interpretation better, because you don't have to play mindfuck games with it.
I think the parent (AC) is correct, except for one exception.
In an environment where there was no motion there would be no passage of time. In an environment where there was no memory there would be no concept of time.
Time is an illusion.
The only way to time travel would be to force every particle of matter and every bit of energy back to where it was at some point we remember from the past. Then we would have the perfect illusion of time travel.
Nobody could ever prove it wasn't time travel because everything we could ever use to disprove it would have been affected.
If 'the people' in Amendment 2 are 'the state' then Amendments 1, 2, 4, 9, and 10 benefit the state, not you.
However, as a quantum mechanic, I happen to think the "many worlds" interpretation is nonsense. So I gotta part ways with you on this. Sorry.
Fair enough, but I prefer to believe that energy et cetera is conserved, and your interpretation wildly violates conservation laws. I'd rather preserve conservation of energy than forbid closed loops in world-lines.
As much as the recursive time traveler is fun, isn't that a good argument that the timeline doesn't contain time travel? I mean, I'm certain that someone, somwhere in the infinity of time would go back and screw up the invention of time travel. Thus, the only stable solution is one where time travel is never invented.
Live today, because you never know what tomorrow brings
Actually everything we do is in the future, because by the time you have thought it and acted the result is the future. Also past and future are definitely concrete, present AKA now never exist becuase it is infinitely small in time. Thus we only have the past and future to cling to and live for, present is a pure abstract construct that acts as a go between from past to present. You might just need that acid now..
But the whole point is that time did move slower for the guy in the spacecraft. The two reference systems are not symmetrical (you seem to be confused by this fallacy). The time flowed 12x slower for the guy in the spacecraft. Read up on the "twin paradox" and why it's not a paradox at all.
Your pizza just the way you ought to have it.
From: http://physicsmathforums.com/
http://physicsmathforums.com/showthread.php?t=60
Book on Moving Dimensions Theory Due Out in Fall 05
Moving Dimensions Theory
By Dr. E
http://physicsmathforums.com/
Questions Addressed by MDT:
Why is the speed of light constant in all frames?
Why are light and energy quantized?
How can matter display both wave and particle properties?
Why are there non-local effects in quantum mechanics?
Why does time stop at the speed of light?
How come a photon does not age?
Why are inertial mass and gravitational mass the same thing?
Why do moving bodies exhibit length contraction?
Why are mass and energy equivalent?
Why does time's arrow point in the direction it points in? Why entropy?
Why do photons appear as spherically-symmetric wavefronts traveling with the velocity c?
Why is there a minus sign in the following metric? x^2+y^2+z^2-c^2t^2=s^2
What deeper reality underlies Einstein's postulates of relativity?
What deeper reality underlies Newton's laws?
What underlies the laws of Inertia?
Why does general relativity fail at short distances? Why does quantum mechanics dominate at short distances?
Why have so many great minds, Einestin, Godel, Wheeler, Hawking, and Penrose called for a new conception of time?
If at first the idea is not absurd, then there is no hope for it.
--Albert Einstein
If I have seen further it is by standing on the shoulders of giants.
--Isaac Newton
Max Planck, the father of quantum theory, felt that the pioneer scientist must have "a vivid intuitive imagination, for new ideas are not generated by deduction, but by artistically creative imagination."
An important scientific innovation rarely makes its way by gradually winning over and converting its opponents: What does happen is that the opponents gradually die out.
--Max Planck
Moving Dimensions Theory (MDT)
Today I am writing regarding Moving Dimensions Theory--a deeper model for explaining diverse phenomena in both quantum mechanics and relativity.
The General Postulate of Moving Dimensions Theory:
The fourth dimension is expanding relative to the three spatial dimensions.
The Specific Postulate of Moving Dimensions Theory:
The fourth dimension is expanding relative to the three spatial dimensions at the rate of c in quantized units of the Planck length.
Relativistic, classical, and quantum mechanical phenomena, as well as time itself, are emergent properties of this fundamental principle. Newton's laws, the principle of Inertia, Einstein's postulates, and the inherent wave-particle duality of QM may be explained with this model.
A few years back, while surfing a towering wave on the Outer Banks of North Carolina, a beautiful thought occurred to me. Suppose the wave I was riding represented a coordinate in a dimension. Then although I was approaching shore, I was not moving in this dimension.
The dimension itself was moving with me--I was surfing the dimension. In a flash I saw that that is why photons never age--they are moving along with the fourth dimension, and thus stationary relative to it. In another flash I saw that that is why a photon's space-time interval is represented by a null vector, or a 0, no matter how far it travels. Indeed Einstein stated that an object's velocity through space-time was always c--even stationary objects are traveling at the velocity c through time! How could this be, were it not for a fourth expanding dimension, which matter could surf as photons, giving rise to our notion of time? And so it is that Moving Dimensions Theory was born as the wave crested and crashed about me, thundering on down, as I fought to remain surfing amidst the foam, facing the setting sun silhouetting the
Whoever posted this is an idiot. If I remembered correctly, NASA has proven time is not constant. Minute dialation effects (in the millionths or greater of a second were recorded) when astronaughts travel into space. While this is not a remarkable change in time, it does illistrate that time is not a constant. Yes, there are arguments if backward time travel is possible or feasable as it would take an impossibly large amount of energy to accomplish it as it would require to reach faster than light velocities. Now... I wonder if slashdot is being infiltrated by the Intelligent Design idiots, flying a new flag of scientific de-evolution. Yes, we don't know everything about the universe but we sure do know more than this idiot.
- Dragonlord Warlock (aka Dion) "So many computers.... so little time...."