and here’s why.

http://www.bbc.com/earth/story/20170228-why-cant-we-go-faster-than-light

I think you all knew that but it’s good to encapsulate it in a little amateur cartoon.

Peak Warming Man said:

and here’s why.

http://www.bbc.com/earth/story/20170228-why-cant-we-go-faster-than-light

I think you all knew that but it’s good to encapsulate it in a little amateur cartoon.

I just couldn’t be bothered typing that all in.

Well not with that attitude

sibeen said:

Peak Warming Man said:

and here’s why.

http://www.bbc.com/earth/story/20170228-why-cant-we-go-faster-than-light

I think you all knew that but it’s good to encapsulate it in a little amateur cartoon.

I just couldn’t be bothered typing that all in.

Link for lazy sods

ChrispenEvan said:

sibeen said:

Peak Warming Man said:

and here’s why.

http://www.bbc.com/earth/story/20170228-why-cant-we-go-faster-than-light

I think you all knew that but it’s good to encapsulate it in a little amateur cartoon.

I just couldn’t be bothered typing that all in.

Link for lazy sods

Look, it’s OK, I did type it in and am currently about half way through.

It is shit.

Well, I can’t.

But quantum mechanics and general relativity allow strange things, like quantum tunnelling and visual horizons.

Well the universal expansion disagrees.

tauto said:

Well the universal expansion disagrees.

No.

sibeen said:

It is shit.

I only watched the first 30 seconds, but it looked OK I thought.

ChrispenEvan said:

tauto said:

Well the universal expansion disagrees.

No.

—-

So the universe is not expanding faster than light speed?

tauto said:

ChrispenEvan said:

tauto said:

Well the universal expansion disagrees.

No.

—-

So the universe is not expanding faster than light speed?

yes, it is.

ChrispenEvan said:

tauto said:

ChrispenEvan said:

No.

—-

So the universe is not expanding faster than light speed?

yes, it is.

I thought the correct answer to that was…we don’t know,

So the universe moves faster than light?

ChrispenEvan said:

tauto said:

ChrispenEvan said:

No.

—-

So the universe is not expanding faster than light speed?

yes, it is.

the difference is that space has no mass so can do this without going against relativity. relativity is concerned with things with mass travelling through space faster, or equal to, the speed of light. the objects in the universe are just going along for the ride.

sibeen said:

ChrispenEvan said:

tauto said:

—-

So the universe is not expanding faster than light speed?

yes, it is.

I thought the correct answer to that was…we don’t know,

no.

ChrispenEvan said:

tauto said:

ChrispenEvan said:

No.

—-

So the universe is not expanding faster than light speed?

yes, it is.

—-

So the universe can go faster than the speed of light.

ChrispenEvan said:

sibeen said:

ChrispenEvan said:

yes, it is.

I thought the correct answer to that was…we don’t know,

no.

Link for curious sods

tauto said:

ChrispenEvan said:

tauto said:

—-

So the universe is not expanding faster than light speed?

yes, it is.

—-

So the universe can go faster than the speed of light.

well, that isn’t a real good way of putting it. the distance between objects is getting larger on very large scales. over large enough scales two objects can be separating at a speed faster than light.

> So the universe can go faster than the speed of light.

Of course it can, I said that above before the issue was raised.

Electrons can go faster than the speed of light. The universe can go faster than the speed of light.

But you can’t go faster than the speed of light.

mollwollfumble said:

Electrons can go faster than the speed of light. T

ref

ChrispenEvan said:

mollwollfumble said:

Electrons can go faster than the speed of light. T

ref

IIUC (which quite possibly I don’t), electrons (and other particles) have no defined position, so there is a non-zero probability of an electron having an interaction at point A, then a moment later having another interaction at Point B on the other side of the Universe (if the Universe has sides).

So it travels from A to B way quicker than the speed of light.

How it does that, I don’t know (and I suspect no one else does either).

The Rev Dodgson said:

ChrispenEvan said:

mollwollfumble said:

Electrons can go faster than the speed of light. T

ref

IIUC (which quite possibly I don’t), electrons (and other particles) have no defined position, so there is a non-zero probability of an electron having an interaction at point A, then a moment later having another interaction at Point B on the other side of the Universe (if the Universe has sides).

So it travels from A to B way quicker than the speed of light.

How it does that, I don’t know (and I suspect no one else does either).

The Chinese say they have developed quantum radar to see stealth planes, something to do with a pair of photons, one interacts with the plane but they don’t monitor that one they monitor it’s entangled twin……something …………………something…………………….something………………………

Peak Warming Man said:

……something …………………something…………………….something………………………

I agree.

The Rev Dodgson said:

ChrispenEvan said:

mollwollfumble said:

Electrons can go faster than the speed of light. T

ref

IIUC (which quite possibly I don’t), electrons (and other particles) have no defined position, so there is a non-zero probability of an electron having an interaction at point A, then a moment later having another interaction at Point B on the other side of the Universe (if the Universe has sides).

So it travels from A to B way quicker than the speed of light.

How it does that, I don’t know (and I suspect no one else does either).

1)how can you tell it is the same electron? ;-)
2)don’t think quantum tunnelling/jumps are considered FTL travel.
3)quantum is weird and electrons are only point*like* particles, so wavefunction collapse and re-emerging in a different orbital isn’t FTL. dunno.

ChrispenEvan said:

1)how can you tell it is the same electron? ;-)
NFI
2)don’t think quantum tunnelling/jumps are considered FTL travel.
Don’t know.
3)quantum is weird and electrons are only point*like* particles, so wavefunction collapse and re-emerging in a different orbital isn’t FTL. dunno.
Don’t know either

Since photons are “point like” particles as well, presumably light can travel faster than light as well (or not, as the case may be).

ChrispenEvan said:

tauto said:

ChrispenEvan said:

yes, it is.

—-

So the universe can go faster than the speed of light.

well, that isn’t a real good way of putting it. the distance between objects is getting larger on very large scales. over large enough scales two objects can be separating at a speed faster than light.

distance is the key here… things very far away are receding faster than things that are closer to us.

Since photons are “point like” particles as well, presumably light can travel faster than light as well.

Interesting question. Light can, and usually does, travel slower than the speed of light. Light can be slowed to a walking pace, stopped, or even made to run backwards.

With various frame of reference changes in general relativity, you can make light travel faster than the speed of light. Consider light so far away that it’s over then visible horizon of the universe. Relative to an observer mounted on Earth, such light can be considered to be travelling faster than the speed of light.

Incidentally, through the process of negative entropy, you can have temperatures hotter than infinity and colder than absolute zero.

My little girly brain just exploded.

dumb he do anticipate lots
this’n that into’n of the future
yeah’n‘t be faster than light
that unhappened yes a view
scary window ol’ look into’t
I parallel’t stuff of that aether
it how’n the glue of thought