Time Travel question

[Intruder04]

Einstein's theory of Special Relativity.

https://spaceplace.nasa.gov/review/dr-marc-space/time-travel.html


"Special Relativity also says that a surprising thing happens when you move through space-time, especially when your speed relative to other objects is close to the speed of light. Time goes slower for you than for the people you left behind. You won't notice this effect until you return to those stationary people.

Say you were 15 years old when you left Earth in a spacecraft traveling at about 99.5% of the speed of light (which is much faster than we can achieve now), and celebrated only five birthdays during your space voyage. When you get home at the age of 20, you would find that all your classmates were 65 years old, retired, and enjoying their grandchildren! Because time passed more slowly for you, you will have experienced only five years of life, while your classmates will have experienced a full 50 years.

Time traveler

So, if your journey began in 2003, it would have taken you only 5 years to travel to the year 2053, whereas it would have taken all of your friends 50 years. In a sense, this means you have been time traveling. This is a way of going to the future at a rate faster than 1 hour per hour. "

I get that but you said something about travelling faster than the speed of light. Whereas Special Relativity has a speed limit equal to that of the speed of light.

 

[a-dev]

Einstein's theory of Special Relativity.

https://spaceplace.nasa.gov/review/dr-marc-space/time-travel.html


"Special Relativity also says that a surprising thing happens when you move through space-time, especially when your speed relative to other objects is close to the speed of light. Time goes slower for you than for the people you left behind. You won't notice this effect until you return to those stationary people.

Say you were 15 years old when you left Earth in a spacecraft traveling at about 99.5% of the speed of light (which is much faster than we can achieve now), and celebrated only five birthdays during your space voyage. When you get home at the age of 20, you would find that all your classmates were 65 years old, retired, and enjoying their grandchildren! Because time passed more slowly for you, you will have experienced only five years of life, while your classmates will have experienced a full 50 years.

Time traveler

So, if your journey began in 2003, it would have taken you only 5 years to travel to the year 2053, whereas it would have taken all of your friends 50 years. In a sense, this means you have been time traveling. This is a way of going to the future at a rate faster than 1 hour per hour. "

How depressing would that be. Not something I would embark on unless my entire family and anyone else I cared about could come along.

 

[Intruder04]

How depressing would that be. Not something I would embark on unless my entire family and anyone I cared about could come along.

Time Travel Wholesale!

 

[Solidus]

What becomes of it after it exhausts all of its energy? And won't it be continually 'fed' with all the matter present in the universe?

The going theory, is that a black hole's mass is exhausted from dissipating radiation. It makes sense, because if there's no energy going in (from "feeding"), and just energy going out, then it's losing mass. A loss in mass means that its gravity is gradually becoming weaker.

The universe is littered with black holes. In fact, it's always possible that one could be just a few light years from Earth, that's headed towards our solar system . But, they are hard to spot. Like the name sounds, black holes are completely "black" like the surrounding space, and astronomers can only "see" them, when they notice stars rapidly orbiting and losing coronal matter to an object that isn't there.

You do bring up an interesting point. No one knows what will happen trillions of years from now. It's always the case that black holes will eventually drain the universe of all of its known matter.

 

[Mr. Green]

Einstein's theory of Special Relativity.

https://spaceplace.nasa.gov/review/dr-marc-space/time-travel.html


"Special Relativity also says that a surprising thing happens when you move through space-time, especially when your speed relative to other objects is close to the speed of light. Time goes slower for you than for the people you left behind. You won't notice this effect until you return to those stationary people.

Say you were 15 years old when you left Earth in a spacecraft traveling at about 99.5% of the speed of light (which is much faster than we can achieve now), and celebrated only five birthdays during your space voyage. When you get home at the age of 20, you would find that all your classmates were 65 years old, retired, and enjoying their grandchildren! Because time passed more slowly for you, you will have experienced only five years of life, while your classmates will have experienced a full 50 years.

Time traveler

So, if your journey began in 2003, it would have taken you only 5 years to travel to the year 2053, whereas it would have taken all of your friends 50 years. In a sense, this means you have been time traveling. This is a way of going to the future at a rate faster than 1 hour per hour. "

so you're saying, live like a bubble boy. nevermind the amount of energy spent traveling in near light speed, you're not really traveling back in time, just aging slower than the rest but still age at the same rate separately. what's the fun in that? LOL

the thing about traveling back in time with the speed of light is kina silly. like which direction you need to go, to travel back? the same for traveling forward. time goes by everywhere so the speed of light doesn't impress me as it still needs a direction.

I love to discuss these topic as it open up to creativity, ie pop culture, as opposed to being a simpleton, but lets face it, we're still working on a cure for cancer/other disease and better mileage on automotive batteries(energy issue).

 

[a-dev]

It's always the case that black holes will eventually drain the universe of all of its known matter.

[ame]https://www.youtube.com/watch?v=pTifdoKXoxM[/ame]

 

[Darthrazz]

Einstein's theory of Special Relativity.

https://spaceplace.nasa.gov/review/dr-marc-space/time-travel.html


"Special Relativity also says that a surprising thing happens when you move through space-time, especially when your speed relative to other objects is close to the speed of light. Time goes slower for you than for the people you left behind. You won't notice this effect until you return to those stationary people.

Say you were 15 years old when you left Earth in a spacecraft traveling at about 99.5% of the speed of light (which is much faster than we can achieve now), and celebrated only five birthdays during your space voyage. When you get home at the age of 20, you would find that all your classmates were 65 years old, retired, and enjoying their grandchildren! Because time passed more slowly for you, you will have experienced only five years of life, while your classmates will have experienced a full 50 years.

Time traveler

So, if your journey began in 2003, it would have taken you only 5 years to travel to the year 2053, whereas it would have taken all of your friends 50 years. In a sense, this means you have been time traveling. This is a way of going to the future at a rate faster than 1 hour per hour. "

Yup, it's called Time Dilation. Queen actually have a song about it!
[ame="https://www.youtube.com/watch?v=7Ti9EA_ks28"]https://www.youtube.com/watch?v=7Ti9EA_ks28[/ame]


Satellites high above the earth also have their internal clocks slowed down to compensate. Although obviously, they don't travel at the speed of light.
https://www.astronomy.ohio-state.edu/~pogge/Ast162/Unit5/gps.html

 

[Blackthornone]

so you're saying, live like a bubble boy. nevermind the amount of energy spent traveling in near light speed, you're not really traveling back in time, just aging slower than the rest but still age at the same rate separately. what's the fun in that? LOL

the thing about traveling back in time with the speed of light is kina silly. like which direction you need to go, to travel back? the same for traveling forward. time goes by everywhere so the speed of light doesn't impress me as it still needs a direction.

I love to discuss these topic as it open up to creativity, ie pop culture, as opposed to being a simpleton, but lets face it, we're still working on a cure for cancer/other disease and better mileage on automotive batteries(energy issue).

My point was that some sort of time travel seems possible.

The Tesla gets 240 miles plus per charge. How much more do you need?

 

[Devil_666]

Do you even know anything about the project?

All I need to know is that he's attempting to build a time machine. That's enough information.

 

[Darth Snoopy]

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[Centurion]

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Nice!!

 

[ShadowX81]

All I need to know is that he's attempting to build a time machine. That's enough information.

Well maybe you should become informed before you insult a well respected physics professor and his life's work.

https://en.wikipedia.org/wiki/Ron_Mallet

For quite some time[when?], Ronald Mallett has been working on plans for a time machine. This technology would be based upon a ring laser's properties within the context of Einstein's Theory of Relativity. Mallett first argued that the ring laser would produce a limited amount of frame-dragging which might be measured experimentally, saying:[2]


"In Einstein's General Theory of Relativity, both matter and energy can create a gravitational field. This means that the energy of a light beam can produce a gravitational field. My current research considers both the weak and strong gravitational fields produced by a single continuously circulating unidirectional beam of light. In the weak gravitational field of an unidirectional ring laser, it is predicted that a spinning neutral particle, when placed in the ring, is dragged around by the resulting gravitational field."

In a later paper, Mallett argued that at sufficient energies, the circulating laser might produce not just frame-dragging but also closed timelike curves (CTC), allowing time travel into the past:[3]


For the strong gravitational field of a circulating cylinder of light, I have found new exact solutions of the Einstein field equations for the exterior and interior gravitational fields of the light cylinder. The exterior gravitational field is shown to contain closed timelike lines.
The presence of closed timelike lines indicates the possibility of time travel into the past. This creates the foundation for a time machine based on a circulating cylinder of light.

Funding for his program, now known as the Space-time Twisting by Light (STL) project, is progressing. Full details on the project, Mallett's theories, a list of upcoming public lectures and links to popular articles on his work can be found at the Professor's UConn web page, and an illustration showing the concept on which Mallett has designed the time machine can be seen here.

 

[devilof76]

Dimensions are also measurements, and as such are absolutes, and not variables. However, the type of dimension I mentioned was a parallel universe, which physicists have discussed as possible. They are onlyunproven.

Oh, my mistake. Someone said it was possible, except that they can't prove it whatsoever. I guess I was completely wrong in thinking they were just making **** up and pretending it held some kind of validity because they happen to call themselves scientists.

Actually it isn't. That's a theory and like all theories it's unproven.

Nuh uh. The Reverend just explained to me that you don't need to prove things for them to be possible, hence real.

Just think of the possibilities...

 

[devilof76]

This post is from the future devilof76. I've come back to tell you guys that I was wrong.

Don't laugh. You have to believe me. ShadowX81's professor is building the machine that will destroy the world. He must be stopped.

This is my only chance to communicate with you guys. I trust you'll take care of it. K, thanks.

P.S. Beer in the future is terrible. PLEASE HURRY!!!!!!!

 

[Solidus]

This post is from the future Solidus. I am now the last person alive on Earth and the beer is, indeed, terrible. Please listen to devilof76.

 

[Mr. Green]

crap, these futures people provided no solid evidence. and the present is innocent until proven guilty. dammit, i'll just take their words for it; gotta stock pile these beer just to be safe!


Oh wait, beer goes bad in a few months anyway. Some futures you guys are.

 

[Blackthornone]

Oh, my mistake. Someone said it was possible, except that they can't prove it whatsoever. I guess I was completely wrong in thinking they were just making **** up and pretending it held some kind of validity because they happen to call themselves scientists.



Nuh uh. The Reverend just explained to me that you don't need to prove things for them to be possible, hence real.

Just think of the possibilities...

Possible means could. It does not mean is. For example, it would be possible for me to get in my car and go someplace right now, but the fact that I don't means that me getting in my car right now and driving is not real.
A lot of things are possible without actually being real.

You need to prove something for it to be accepted as real, however you don't always have to prove something for it to be a possibility.
The four minute mile was always possible, but everyone thought it was impossible. Then Roger Bannister did it, and then it was real. That proved that all that time before he did it, it was possible as well.
However, if you can prove something to be impossible, then it is an impossibility.

 

[Darthrazz]

This post is from the future Solidus. I am now the last person alive on Earth and the beer is, indeed, terrible. Please listen to devilof76.

Solidus, in the future, has Hot Toys made the Anakin figure yet?

 

[barryo]

This post is from the future devilof76. I've come back to tell you guys that I was wrong.

Don't laugh. You have to believe me. ShadowX81's professor is building the machine that will destroy the world. He must be stopped.

This is my only chance to communicate with you guys. I trust you'll take care of it. K, thanks.

P.S. Beer in the future is terrible. PLEASE HURRY!!!!!!!

what were the new star wars films like? any good?................did they bring back the emporer and in what form?...........these questions trump all others....

 

[Blackthornone]

Solidus, in the future, has Hot Toys made the Anakin figure yet?

They made it, then someone time traveled again to stop them. It was done three years ago, but no one ever knew about it. Someone went back and changed it. Now you never knew the difference.