If the existence of Tachyons where proved, what would be the impact on mankind?
What would be the effects of travelling faster than light, knowing that the faster you travel time passes more slowly.
Will Tachyons be the key for time travelling? Will time travelling be the new frontier for mankind?

If the existence of Tachyons where proved, what would be the impact on mankind?
What would be the effects of travelling faster than light, knowing that the faster you travel time passes more slowly.
Will Tachyons be the key for time travelling? Will time travelling be the new frontier for mankind?

Space-time...relative time is the same everywhere for all bodies moving at
the same speed. It's space time that you experience the effects of
when you reach the speed of light. The humans, that you leave behind when
you go off on your travels, age at the same rate as you do. But space-time
changes for you because it involves the distance in space-time traveled
compared to the space-time traveled by those that you left at home on
planet Earth. So what you have done is traveled, what Earth had to cover in
100 years, in 1 hour to "you" only. The reason all this tends to be difficult
for us humans to conceive is because an extra dimension, above our normal three,
is coming into play here. The human mind can only visualise or think with
reference to our three dimensional world, by adding extra dimensions to
it's thought process creates problems even eminent scientist struggle to
cope with. I as a pleb have to accept these space-time facts 'cos I don't
fully understand it all.

How do you explain the effects of extra dimensions say to someone living
on a two dimensional planet in a two dimensional universe. Tell him you
live in a three dimensional world and he will be unable to imagine what it
is like. How will you explain to him what a cube looks like?

Go on everyone reading this...how would you explain what a cube looks like
to someone living in a two dimensional word?

If you manage to achieve this feat then science needs you.
For you may then be able to explain to the waiting scientists what a
four dimensional world would look like. No one knows for sure at the moment.

I'll tie your heads up a bit further. M theory, or superstring theory suggests that there are 11 dimensions, one of which is time. Most of these dimensions are tiny, and wrapped in on themselves.

There were 5 separate string theories, each incompatible with the others. They used 10 dimensions. Once it was understood that 11 dimensions were required, Superstring theory made sense, and rose out of the clutter.

Steve

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Warning, addicted to SETI crunching!
Crunching as a member of GPU Users Group.
GPUUG Website

I'll tie your heads up a bit further. M theory, or superstring theory suggests that there are 11 dimensions, one of which is time. Most of these dimensions are tiny, and wrapped in on themselves.

There were 5 separate string theories, each incompatible with the others. They used 10 dimensions. Once it was understood that 11 dimensions were required, Superstring theory made sense, and rose out of the clutter.

Steve

Scimansteve, you try and tell the average man in the street that there are
11 dimensions and he thinks your "Loopy". Time is a dimension, computing
this using my tiny pea brain make me conclude that this dimension only becomes
active, as a dimension, once you hit the speed of light.

I have a hard enough job dealing with 4 dimensions. 1 of these is not my friend ;)

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Janice

I have a hard enough job dealing with 4 dimensions. 1 of these is not my friend ;)

And I bet it's TIME!!, soft^spirit

I'll tie your heads up a bit further. M theory, or superstring theory suggests that there are 11 dimensions, one of which is time. Most of these dimensions are tiny, and wrapped in on themselves.

There were 5 separate string theories, each incompatible with the others. They used 10 dimensions. Once it was understood that 11 dimensions were required, Superstring theory made sense, and rose out of the clutter.

Steve

One of my favorite videos explaining the 10 (11) dimensions is shown in two parts on Youtube:

http://youtu.be/JkxieS-6WuA
http://youtu.be/ySBaYMESb8o

It explains all known 10 dimensions, and he explains why he considers time the 4th out of 11 possible.

I'll tie your heads up a bit further. M theory, or superstring theory suggests that there are 11 dimensions, one of which is time. Most of these dimensions are tiny, and wrapped in on themselves.

There were 5 separate string theories, each incompatible with the others. They used 10 dimensions. Once it was understood that 11 dimensions were required, Superstring theory made sense, and rose out of the clutter.

Steve

One of my favorite videos explaining the 10 (11) dimensions is shown in two parts on Youtube:

http://youtu.be/JkxieS-6WuA
http://youtu.be/ySBaYMESb8o

It explains all known 10 dimensions, and he explains why he considers time the 4th out of 11 possible.

Shall have a look as these Ozz sometime tomorrow....

I'll tie your heads up a bit further. M theory, or superstring theory suggests that there are 11 dimensions, one of which is time. Most of these dimensions are tiny, and wrapped in on themselves.

There were 5 separate string theories, each incompatible with the others. They used 10 dimensions. Once it was understood that 11 dimensions were required, Superstring theory made sense, and rose out of the clutter.

Steve

Scimansteve, you try and tell the average man in the street that there are
11 dimensions and he thinks your "Loopy". Time is a dimension, computing
this using my tiny pea brain make me conclude that this dimension only becomes
active, as a dimension, once you hit the speed of light.

Time is active all the time. It changes its rate of passage depending on you point of reference. Gravity, makes it pass slower, just as very high speed does. Light speed is a constant, but time is not. I thought many years ago, that perhaps, time, light, and gravity were different forms of the same thing. Now I know that gravity is a property of mass. Even the Earth has an influence on time. Our GPS systems figure that into the calculations very precicely, or GPS systems would simply not work. The closer you get to a gravitational body, the slower time passes. The more intense the gravity, the more the effect.

Steve

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Warning, addicted to SETI crunching!
Crunching as a member of GPU Users Group.
GPUUG Website

Are there any more theories besides the string one?

And how do Tachyons can be related with them?

Are all this theories related with the creation of our universe?

I said our Universe as I don't believe that BIG BANG was moment Zero of all creation, in my opinion there was something before the BIG BANG, any ideas of what it was? GOD? Something else?

By the way some people belive that time only exists because we exist and we count it.

I doubt tachyons exist. As for strings theory, there is not a single experimental confirmation. All LHC results so far show no trace of supersymmetry particles. As for what existed before the Big Bang, God only knows.
Tullio

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That's why HAL9000 sabotaged the mission in "2001 A space odyssey". Dante summarized it many centuries ago: "Vuolsi cosi' cola' dove si puote cio' che si vuole e piu' non dimandare".
Tullio

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By the way some people belive that time only exists because we exist and we count it.

When you say some people, Dr Imaginario, in that group there are
scientists too who believe this. I have often wounder about time
being classed as a dimension. Yet strange that if it is a dimension
why are we unable to move around in it. To this end if time is a
dimension should we not simply be able to move forwards and backwards
in it. Take a cube containing the three dimensions, here you can move
freely around it in all dimensional directions. You can select one
of those dimensions and still move forwards and backwards along it,
or along another one upwards and downwards all within their set limits
of length.

By the way some people belive that time only exists because we exist and we count it.

When you say some people, Dr Imaginario, in that group there are
scientists too who believe this. I have often wounder about time
being classed as a dimension. Yet strange that if it is a dimension
why are we unable to move around in it. To this end if time is a
dimension should we not simply be able to move forwards and backwards
in it. Take a cube containing the three dimensions, here you can move
freely around it in all dimensional directions. You can select one
of those dimensions and still move forwards and backwards along it,
or along another one upwards and downwards all within their set limits
of length.

Actually, my videos I linked earlier explain some of your perplexing questions about why we can't move around in the 4th dimension, and why there's some disagreement on whether it is a real dimension or not among the scientific community, yet without considering it a dimension, all models of the known dimensions seem to fall apart with our current understanding.

Actually, my videos I linked earlier explain some of your perplexing questions about why we can't move around in the 4th dimension, and why there's some disagreement on whether it is a real dimension or not among the scientific community, yet without considering it a dimension, all models of the known dimensions seem to fall apart with our current understanding.

Ah, I knew I had something to do....watch those videos...back later.

Normally when we describe an objects location, we give it coordinates for the X, Y, and Z axis, as well as the time it was in that location. It you more the object from where it was, you can still define it by X, Y, Z, and time. It is still there at that particular time.

Steve

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Warning, addicted to SETI crunching!
Crunching as a member of GPU Users Group.
GPUUG Website

First I would to apologize if sometimes I do not use the right expression in my posts, as English is not my native language and I don’t want to create any misunderstandings.

When I said some people I used the wrong expression and I noticed that created some confusion.
About time being a dimension, well I must say that for me is a strange concept, as in this dimension you can only move forward and not also backwards as on the other 3 basic dimensions. I’m sure that will be here someone with enough knowledge of physics that could explain to me and to the other members why travel back in time is not possible.
Nevertheless I often wonder what if the current theories about time are wrong, and in fact someday it will be possible to travel back and forward in time.

Maybe this is already happening, and now someone from the future is among us watching. I guess I’m just reading too much Sci-fi, but I know that there is a theory somewhere that defies that the speed of light is the limit, as time and speed are connected and this was proved. The faster you travel, time passes slower.
Life with 4 dimensions is complicated, now I only imagine with 10 or 11. And what dimensions are those? Maybe our mind now is not enough powerful to fully grasp the mechanics of the universe or even the existence of a multiverse.
As usual lots of questions not enough answers, that is mankind we get bored to easily and start to think too much.

I'm not sure that I understand what a Tachyon is supposed to be or do, other than a ficticious particle dreamed up on Star Trek

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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.

I'm not sure that I understand what a Tachyon is supposed to be or do, other than a ficticious particle dreamed up on Star Trek

I just took Tachyon to represent the particle that scientist believe
may exist that can travel faster than the speed of light.

Yes, and they can move backwards in time. When a physics professor who had made some research on tachyons sent me a note announcing his marriage, which arrived to me after his marriage, I sent him a note saying best wishes and that, if I had some tachyons to carry it, he would have received it before his marriage.He never answered, however.
Tullio

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