Space and stuff

[Chewbacca]

FTL is not impossible but the transition through the speed of light is as any physical particle would have infinite mass.

I think

 

[arch stanton]

FTL is not impossible but the transition through the speed of light is as any physical particle would have infinite mass.

I think

so impossible then. Unless a new theory is developed that replaces General Relativity which is of course possible.

 

[chrismpw]

FTL is not impossible but the transition through the speed of light is as any physical particle would have infinite mass.

I think

so impossible then. Unless a new theory is developed that replaces General Relativity which is of course possible.

Information can travel ftl as quantum entangled pairs as I understand. Change the state of one of the pair and the other reacts instantly whatever the separation. Of course, information is not a particle. Makes Star Trek's "sub space communications " a possibility.

 

[arch stanton]

Information can travel ftl as quantum entangled pairs as I understand. Change the state of one of the pair and the other reacts instantly whatever the separation. Of course, information is not a particle. Makes Star Trek's "sub space communications " a possibility.

I'm not going to pretend that I really get Quantum but am I right in thinking that the current thought is that entanglement suggests FTL transmission of stuff but that it isn't fully understood? Could it even be a measurement mistake like the neutrino experiment ten years or so ago that first reported FTL travel?

 

[chrismpw]

I'm not going to pretend that I really get Quantum but am I right in thinking that the current thought is that entanglement suggests FTL transmission of stuff but that it isn't fully understood? Could it even be a measurement mistake like the neutrino experiment ten years or so ago that first reported FTL travel?

Not pretending I'm an expert either - I suppose stuff could be transported as information to some kind of sequencer which could build the stuff at the other end - like a "beam me up scotty" transporter. But to do that to a living thing? Placing every atom and electron where it needs to be to connect the right neurons for memory and consciousness? That's a lot of data .... and then you also have the Heisenberg uncertainty principle to deal with too.

I live in hope that einstein was wrong, I live in hope that ftl is possible, otherwise the universe is an enormous lonely place for us simians.

 

[Gwladys St. Glory]

I live in hope that einstein was wrong, I live in hope that ftl is possible, otherwise the universe is an enormous lonely place for us simians.

Not in our lifetime, so best to think about other things...women in lingerie is a good start.

 

[chrismpw]

Not in our lifetime, so best to think about other things...women in lingerie is a good start.

On it.

 

[Gwladys St. Glory]

On it.

You can't beat some good Hubble images, though...

HubbleSite: Image - Eta Carinae: Observations in UV Light Uncover Magnesium Embedded in Warm Gas

hubblesite.org

 

[degsy]

Thing is to bother to come here (given the sorry state of us, why would you bother is another story)
They have to know we are here
Lets say for arguments sake Marconi...only started broadcasting radio waves a 120 or so years ago and TV 80yrs ago.
So if there is nobody within 80 to 120 ly of us...in galactic terms just over the horizon, without that visible electronic smoke signal poking over the horizon we are invisible.
Also, they have to be not only looking, but looking in the right direction, from a place where they could see us if they did bother to look.
A lot of ifs and some long odds.
Just sayin like.

"Then the loud sound did seem to fade
Came back like a slow voice on a wave of phase
That weren’t no DJ that was hazy cosmic jive

There’s a starman waiting in the sky
He’d like to come and meet us
But he thinks he’d blow our minds"

 

[arch stanton]

Not pretending I'm an expert either - I suppose stuff could be transported as information to some kind of sequencer which could build the stuff at the other end - like a "beam me up scotty" transporter. But to do that to a living thing? Placing every atom and electron where it needs to be to connect the right neurons for memory and consciousness? That's a lot of data .... and then you also have the Heisenberg uncertainty principle to deal with too.

I live in hope that einstein was wrong, I live in hope that ftl is possible, otherwise the universe is an enormous lonely place for us simians.

if the 'stuff' had no mass, then the constraints of relativity wont apply(?)

 

[chrismpw]

if the 'stuff' had no mass, then the constraints of relativity wont apply(?)

True - but light has no mass either (?) and it is limited to light speed (obviously!!)

 

[arch stanton]

True - but light has no mass either (?) and it is limited to light speed (obviously!!)

That's my career as a top level quantum researcher in tatters ffs

 

[degsy]

if the 'stuff' had no mass, then the constraints of relativity wont apply(?)

Light does'nt have mass as such, (depending what questions, tests you do and who you ask)
But it can exert a force - which is a good trick if you have no mass.
Getting above my pay grade now.

 

[arch stanton]

Light does'nt have mass as such, (depending what questions, tests you do and who you ask)
But it can exert a force - which is a good trick if you have no mass.
Getting above my pay grade now.

I though the current thinking was that light was a bodge of waves and photons, surely the photons have a mass?

 

[degsy]

I though the current thinking was that light was a bodge of waves and photons, surely the photons have a mass?

Shrugs*
I thought it was both wave and particle - a wavicle if you will
Who is the biggest know all an here? we'll ask da er bru sorry, him, whoever he is
And how that Higgs Bison fits in the equation in is anybodys guess, I mean it must weigh half a ton ffs, you can't tell me thats got no mass