Speed of light

[Mao]

What do you define as the 'universe'? What is beyond the universe?

The universe contains all the super clusters of galaxies, beyond the universe, I believe is going further back in time, before the universe began

going back in time? do you postulate that the universe is expanding at the speed of light?

[Over9000]

What do you define as the 'universe'? What is beyond the universe?

The universe contains all the super clusters of galaxies, beyond the universe, I believe is going further back in time, before the universe began

going back in time? do you postulate that the universe is expanding at the speed of light?

Umm, if you travel to the outer edges of the universe, that is the point where the universe first began. Think of it like this, universe begins and expands outwards, what was in the beginning would be at the outer edges of the expansion of the universe, so it doesn't matter how fast the universe expands, you are further back in time at the edge of the universe than on earth.

[kurrymuncher]

Im pretty sure it doesnt work that way.

[Over9000]

Im pretty sure it doesnt work that way.

Im pretty sure, trying to say something doesnt work just by saying it doesnt also doesnt work.
Maybe you should say how it actually works if you think im wrong

And anyway im just saying my opinion im not a scientist, and for physics nothing can be wrong and nothing can be right 100%, we never can know, so all we can do is theorise

[kurrymuncher]

dont hate me

[Over9000]

dont hate me

Lol, I love people who love this kind of physics, its fun

[Mao]

What do you define as the 'universe'? What is beyond the universe?

The universe contains all the super clusters of galaxies, beyond the universe, I believe is going further back in time, before the universe began

going back in time? do you postulate that the universe is expanding at the speed of light?

Umm, if you travel to the outer edges of the universe, that is the point where the universe first began. Think of it like this, universe begins and expands outwards, what was in the beginning would be at the outer edges of the expansion of the universe, so it doesn't matter how fast the universe expands, you are further back in time at the edge of the universe than on earth.

Not necessarily. the current 'perceived' edge of the universe is limited by the speed of light, i.e. we can only see a distance of , where T is the age of universe.

But assuming we are capable of travelling at close to speed of light (but not at or over), and the universe keeps expanding at its current rate. Will we ever reach an end?

[Over9000]

What do you define as the 'universe'? What is beyond the universe?

The universe contains all the super clusters of galaxies, beyond the universe, I believe is going further back in time, before the universe began

going back in time? do you postulate that the universe is expanding at the speed of light?

Umm, if you travel to the outer edges of the universe, that is the point where the universe first began. Think of it like this, universe begins and expands outwards, what was in the beginning would be at the outer edges of the expansion of the universe, so it doesn't matter how fast the universe expands, you are further back in time at the edge of the universe than on earth.

Not necessarily. the current 'perceived' edge of the universe is limited by the speed of light, i.e. we can only see a distance of , where T is the age of universe.

But assuming we are capable of traveling at close to speed of light (but not at or over), and the universe keeps expanding at its current rate. Will we ever reach an end?

Im pretty confident that we will never be able to reach the edge of the universe. I just keep thinking, if we did somehow travel faster than the speed of light, and somehow reach another galaxy or even the edge of the universe, we could view where our solar system should be but it wouldn't be there yet, as from another galaxy or the edge of the universe, it would seem as though our solar system hadn't even formed as light wouldn't have traveled to another galaxy yet. And would it be feasible for us to exist even if we go back to when our solar system hadn't even formed. I just think, traveling faster than the speed of light, would just cause to many weird things, maybe we're just not meant to.

[dejan91]

Damn you really need an open mind to this stuff...

[kurrymuncher]

ok,I got a pretty simple problem for you guys

person A is on top(not inside) of a train travelling at the speed of light. He holds up a mirror and looks into it. What will person A see?

(just forget that fact that person A cant theoretically travel at the speed of light)

[Mao]

ok,I got a pretty simple problem for you guys

person A is on top(not inside) of a train travelling at the speed of light. He holds up a mirror and looks into it. What will person A see?

Then, the mirror is also travelling at the speed of light. photons can't actually reflect off this mirror because it will have no relative velocity to the mirror, it'll just be black.

[spesh-gun]

Anyways over9000, you CANNOT travel FASTER then the speed of light.

However, you can travel a greater displacement then light can in a certain period of time if you build a wormhole. To do this use this analogy, draw 2 dots at the end of each paper, and then fold the paper so that the 2 dots touch each other.

You would need a vast, mammoth amount of energgy and power to 'bend' space to make 2 points on the universe r(maybe millions of miles) touch each other. Like in stargate...

[spesh-gun]

corrrect me if i am wrong  i saw this in some documentary once i havent actually studied this though.

[kurrymuncher]

ok,I got a pretty simple problem for you guys

person A is on top(not inside) of a train travelling at the speed of light. He holds up a mirror and looks into it. What will person A see?

Then, the mirror is also travelling at the speed of light. photons can't actually reflect off this mirror because it will have no relative velocity to the mirror, it'll just be black.

correct

corrrect me if i am wrong  i saw this in some documentary once i havent actually studied this though.

yeah, it was in on of those einstein docos