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The Measurement of Time and Distance was created by Man, not the actual ideas/things.cool_baller
But time is in no way physical at all. It is just a measurement of the earth going around the sun. And, on that same note, if you were able to make the earth go the other way, you still wouldn't be going back in time, you would just be moving the other way. Time travel is physicaly impossible.
Time travel probably exists, as I believe ANYTHING can be done (look at nature and some products of evolution). Therefore I think people in the futrue are A LOT smarter than us, both tech wise, and common sense wise. Therefore, when they travel bac ki ntime to watch this "ancient" society, they are keeping themselves hidden from us. I mean who knows? They could easily be standing in your room wearing a cloaked suit. The ycould be hovering 100 ft in the air in a cloaked ship. Or they could eb smart enough not to mess around in the past.
As for a race being 1 billion years advanced than us.... I've thought about this before and believe it's entirely plausible. So my conclusion is, with 1 billion years worth of technology, they probably just massively cloak their planet and society just so they don't have to bother with us "ancient, under evolved creatures." I wouldn't be surprised if there are hundreds of planets out there entirely cloaked from others JUST so the people don't have to be bothered by under-developed, curious species.
[QUOTE="cool_baller"]The Measurement of Time and Distance was created by Man, not the actual ideas/things.M1Hunter66
But time is in no way physical at all. It is just a measurement of the earth going around the sun. And, on that same note, if you were able to make the earth go the other way, you still wouldn't be going back in time, you would just be moving the other way. Time travel is physicaly impossible.
OK that makes sense. Time is a measurement.[QUOTE="xaos"]Then why have they not shown up in the several thousand years of recorded human history? And what ever happened to causality and the laws of thermodynamics?ab1205
I think you can go in the future but not the past, Carl Sagan said that time travel is possible but we obviously don't have near the technology for it.
We've already DEMONSTRATED that time travel into the future is possible. More to the point, people have actually jumped ahead in time to the future.
As you increase your speed, your passage through time slows down.
Or in other words, suppose you have twol identical clocks. Supose you stand on the runway holding one clock, and you gve the other clock to your brother, who is a supersonic jet pilot. When he lands and you compare your clocks, his will have run slower. Meaning that yours ran faster. Meaning that time passed slower in his suupersonic jet than it did for you. Meaning that he travelled to the future.
Graned, he only travelled a few microseconds into the future, but it';s still PROVEN time travel to the future. It's a proven demonstration of principle. Time travel has been empirically proven to be possible, it has been proven to have ACTUALLY HAPPENED, and that's all thewre is to say about that.
Yes, time travel to the future is possible. It has already been done.
[QUOTE="ab1205"][QUOTE="xaos"]Then why have they not shown up in the several thousand years of recorded human history? And what ever happened to causality and the laws of thermodynamics?MrGeezer
I think you can go in the future but not the past, Carl Sagan said that time travel is possible but we obviously don't have near the technology for it.
We've already DEMONSTRATED that time travel into the future is possible. More to the point, people have actually jumped ahead in time to the future.
As you increase your speed, your passage through time slows down.
Or in other words, suppose you have twol identical clocks. Supose you stand on the runway holding one clock, and you gve the other clock to your brother, who is a supersonic jet pilot. When he lands and you compare your clocks, his will have run slower. Meaning that yours ran faster. Meaning that time passed slower in his suupersonic jet than it did for you. Meaning that he travelled to the future.
Graned, he only travelled a few microseconds into the future, but it';s still PROVEN time travel to the future. It's a proven demonstration of principle. Time travel has been empirically proven to be possible, it has been proven to have ACTUALLY HAPPENED, and that's all thewre is to say about that.
Yes, time travel to the future is possible. It has already been done.
Isn't it possible that the clock may of just lost or gained a few microseconds on its own? You ever noticed that your clock doesn't stay the exact time you set it at? As time goes, it may lose or gain a few seconds. My computer clock does that all the time. That's why it has to be synched all the time.
[QUOTE="cool_baller"]The Measurement of Time and Distance was created by Man, not the actual ideas/things.M1Hunter66
But time is in no way physical at all. It is just a measurement of the earth going around the sun. And, on that same note, if you were able to make the earth go the other way, you still wouldn't be going back in time, you would just be moving the other way. Time travel is physicaly impossible.
Time certainly does have a physical characteristic: Duration. As soon as something loses the property of duration, it can no longer exist. Of course, the Conversation of Mass means that matter can neither be created nor destroyed (though it can change form), so nothing ever loses the property of duration. Matter has momentum through time in the same way an object in motion has momentum through distance. Like an object in motion, the speed at which is travels is relevant to the speed that the point of reference is traveling. This is referred to as 'relativity'.If you're on a train beside another train, and your train is traveling at half the speed of the other train, then relative to the other train you're only traveling at half the speed as you are traveling relative to the ground. So, time passes normally for both an astronaut in a fast spaceship and a person on Earth. However, because of relativity, the person in the spacecraft will experience less time than a person on Earth in the same amount of time. For both observers, their experience of time is relative to the speed at which they are moving. (The person on Earth is propelled through space upon the Earth, the sun itself is in motion around the Galaxy, the Galaxy itself is heading toward another Galaxy, and so on).
Time only exists because everything is in motion. Again, time has momentum. It can only be measured because it exists as a property of all things. If time in fact did not exist, it would be impossible to measure it, among other things. And motion includes molecular motion. Every molecule vibrates according to ambient temperature. In theory, molecular motion stops at absolute zero. But since matter cannot exist without time (duration), and time cannot exist without movement, then absolute zero is unachievable. We've reached one-degree above absolute zero, and we may get closer to absolute zero, but absolute zero will never be achieved. Think if it like this: Walk half-way to the wall. The half-way again. Then half-way again, and so on. You'll never reach the wall, because each step is half the distance to it. If you ever did reach the wall, you screwed up, because meeting the wall would mean you went 100% of the distance, not 50%. Absolute zero works in the same manner: we can get closer and closer and closer, but will never achieve it. Whether or not you chose to measure the distance between you and the wall, that distance remains true. Whether or not you chose to measure time, the passage of time remains true. If time did not exist, everything would happen at once. And that's impossible.[QUOTE="M1Hunter66"]Time is created by man. Time is mearly a measurment of the earth orbiting the sun, and is not any kind of physical matter. It canno't be altered. In fact, the only way of going back in time is to declare the date to be whatever you want it to be and have it approved by the general public.dog64
I agree. Time is just a word. An hour, a minute, a year, they're all words used to measure how long ago something has happened, and to keep track of past, present, and future events. Time is not a physical object. You cannot touch, hear, see, or feel it through any means. Therefore, how can you travel through it?
Just because a clock slows down when you put it on a fast moving jet doesn't prove that time exists as a type of force or object. Granted, I don't know how else the clock could slow down unless it was caused by the simple fact that you were going so fast that air pressure altered the movement of the clock. Still, I see no evidence that time can really be altered or traveled through in any way.
Units of time are almost all completely arbitrary, except for the Planck time, which is the true fundamental unit of the passage of time (the time required for a photon to travel the Planck distance). Just because hours are an agreed upon unit of measure, it doesn't mean that time is invented, any more than using the Fahrenheit scale means heat is a human construct. As for the latter points, time dilation has been observed and is a consequence of the structure of the 4D manifold of spacetime, air pressure and so forth are not a factor. The effect has been observed in atomic clocks and fundamental particle, the latter of which have no accessible internal structure that could be subject to things like air pressure.[QUOTE="MrGeezer"][QUOTE="ab1205"][QUOTE="xaos"]Then why have they not shown up in the several thousand years of recorded human history? And what ever happened to causality and the laws of thermodynamics?dog64
I think you can go in the future but not the past, Carl Sagan said that time travel is possible but we obviously don't have near the technology for it.
We've already DEMONSTRATED that time travel into the future is possible. More to the point, people have actually jumped ahead in time to the future.
As you increase your speed, your passage through time slows down.
Or in other words, suppose you have twol identical clocks. Supose you stand on the runway holding one clock, and you gve the other clock to your brother, who is a supersonic jet pilot. When he lands and you compare your clocks, his will have run slower. Meaning that yours ran faster. Meaning that time passed slower in his suupersonic jet than it did for you. Meaning that he travelled to the future.
Graned, he only travelled a few microseconds into the future, but it';s still PROVEN time travel to the future. It's a proven demonstration of principle. Time travel has been empirically proven to be possible, it has been proven to have ACTUALLY HAPPENED, and that's all thewre is to say about that.
Yes, time travel to the future is possible. It has already been done.
Isn't it possible that the clock may of just lost or gained a few microseconds on its own? You ever noticed that your clock doesn't stay the exact time you set it at? As time goes, it may lose or gain a few seconds. My computer clock does that all the time. That's why it has to be synched all the time.
Cheap LCD clock or computer clock != atomic clock; this is an absolutely confirmed phenomenon and a fundamental consequence of the theory of relativity, as are the Lorentz-Fitzgerald contraction and relativistic mass gainWe've already DEMONSTRATED that time travel into the future is possible. More to the point, people have actually jumped ahead in time to the future.Clocks do not necesarilly equal real time, if a clock is running slower it doesnt mean all time is slowing down...I don't think time travel is possible.As you increase your speed, your passage through time slows down.
Or in other words, suppose you have twol identical clocks. Supose you stand on the runway holding one clock, and you gve the other clock to your brother, who is a supersonic jet pilot. When he lands and you compare your clocks, his will have run slower. Meaning that yours ran faster. Meaning that time passed slower in his suupersonic jet than it did for you. Meaning that he travelled to the future.
Graned, he only travelled a few microseconds into the future, but it';s still PROVEN time travel to the future. It's a proven demonstration of principle. Time travel has been empirically proven to be possible, it has been proven to have ACTUALLY HAPPENED, and that's all thewre is to say about that.
Yes, time travel to the future is possible. It has already been done.
MrGeezer
[QUOTE="MrGeezer"]We've already DEMONSTRATED that time travel into the future is possible. More to the point, people have actually jumped ahead in time to the future.Clocks do not necesarilly equal real time, if a clock is running slower it doesnt mean all time is slowing down...I don't think time travel is possible.As you increase your speed, your passage through time slows down.
Or in other words, suppose you have twol identical clocks. Supose you stand on the runway holding one clock, and you gve the other clock to your brother, who is a supersonic jet pilot. When he lands and you compare your clocks, his will have run slower. Meaning that yours ran faster. Meaning that time passed slower in his suupersonic jet than it did for you. Meaning that he travelled to the future.
Graned, he only travelled a few microseconds into the future, but it';s still PROVEN time travel to the future. It's a proven demonstration of principle. Time travel has been empirically proven to be possible, it has been proven to have ACTUALLY HAPPENED, and that's all thewre is to say about that.
Yes, time travel to the future is possible. It has already been done.
OfficialJab
Read up on it sometime. This is not a side-effect of malfunctioning clocks. This is absolutely and without a doubt an inherent quality of motion. The faster you go, the more time slows down for you, and that's just a fact.
It'd be hard for me to explain it on this forum, so let me just recommend that you read up on it. I recommend reading "The Elegant Universe" by Brian Greene. While the book is mostly about string theory, there is an EXCELLENT section on relativity that explains time dilation in very easy to understand terms, and it's actually a damn entertaining read as well.
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