80611 réponses à ce sujet

[GethPrimeMKII]

What's this I've been hearing about sentient oceans?

[paxxton]

ZerebusPrime wrote...

paxxton wrote...

I guess the upper limit for temperature increase would be when the particles move at the speed of light.

To the extent of the physics knowledge I possess, it would have to be.
T = average kinetic energy of a given space/volume.
Kinetic energy where all molecules are vibrating/moving at the speed of light = (1/2)mc^2
E = mc^2
So in such a case, T = (1/2)E, or the total energy in the system is twice the temperature (E = 2T).
And I don't know where I'm going with this.  It's amusing, though.
I've forgotten pertinent special relativity facts that could alter the above equations.

I'm not sure but I think that half the energy is dissipated in the form of heat. The other half maybe is used for movement or is trapped in matter itself?

Modifié par paxxton, 05 novembre 2012 - 02:46 .

[demersel]

byne wrote...

Demersel, your whole "Iron and water can actually be liquid, solid, or gas!" doesnt make you seem smart. It makes you seem like you just took a class and recently learned this and want to flaunt your knowledge.

We're all aware of the four states of matter.

No offense.

None taken.  So why then if you are all aware that there are very different contitions in the universe, most of then not suitable for as to live in, why do you deny the possibility that there could be life that finds those conditions pretty comfortable, and that life would not be like anything we can find on earth? That is the oldest idea behind science fiction! 

[Iconoclaste]

demersel wrote...

paxxton wrote...

I guess the upper limit for temperature increase would be when the particles move at the speed of light.

And faster - and some say that is exaclty what happens in a black hole.

That's highly speculative, isn't it? Since black holes are known to "bend" or "alter" the interstellar medium, light might very well have different "properties and behavior" in this kind of environment.

[401 Kill]

@ZerebusPrime- The parallel between the kid and the cut dialogue between Anderson and Shepard is interesting. Wasn't it stated in the comics that Anderson did have a kid? If so, this gives it even more credit to the conversation being in Shepards mind. It's how he "idolizes" Anderson to be.

[demersel]

Really? None of you read Solaris??? Or seen a movie? And none of you can see the similarities with the way indoctrination works in Mass Effect??

[paxxton]

The light-speed limit is valid within a flat (or more precisely, when an object doesn't leave a single topology of) spacetime continuum.

Modifié par paxxton, 05 novembre 2012 - 02:50 .

[demersel]

Iconoclaste wrote...

demersel wrote...

paxxton wrote...

I guess the upper limit for temperature increase would be when the particles move at the speed of light.

And faster - and some say that is exaclty what happens in a black hole.

That's highly speculative, isn't it? Since black holes are known to "bend" or "alter" the interstellar medium, light might very well have different "properties and behavior" in this kind of environment.

Exaclty my point. 

[Iconoclaste]

demersel wrote...

Really? None of you read Solaris??? Or seen a movie? And none of you can see the similarities with the way indoctrination works in Mass Effect??

I love this movie (didn't read the book). Frightening and... marvelous?

[demersel]

Iconoclaste wrote...

demersel wrote...

Really? None of you read Solaris??? Or seen a movie? And none of you can see the similarities with the way indoctrination works in Mass Effect??

I love this movie (didn't read the book). Frightening and... marvelous?

Which one? The Soderberg one or the Russian one? 

[ZerebusPrime]

paxxton wrote...

ZerebusPrime wrote...

paxxton wrote...

I guess the upper limit for temperature increase would be when the particles move at the speed of light.

To the extent of the physics knowledge I possess, it would have to be.
T = average kinetic energy of a given space/volume.
Kinetic energy where all molecules are vibrating/moving at the speed of light = (1/2)mc^2
E = mc^2
So in such a case, T = (1/2)E, or the total energy in the system is twice the temperature (E = 2T).
And I don't know where I'm going with this.  It's amusing, though.
I've forgotten pertinent special relativity facts that could alter the above equations.

I'm not sure but I think that half the energy is dissipated in the form of heat. The other half maybe is used up for movement?

Did I mention that I got a C in special relativity and electromagnetism?  No?  Ok.  I got a C in special relativity and electromagnetism.  I blame Joseph Fourier and my university's failure to schedule calculus courses around the needs of physics majors who find themselves needing to use multivariate calculus before actually covering said material in their calculus classes.

So don't ask me. 

[Iconoclaste]

paxxton wrote...

The light-speed limit is valid within a flat spacetime continuum.

Which doesn't mean it's invalidated in other circumstances. Lack of observation and meassurements.

But there is evidence that speeds much greater than the speed of light have been attained, at least at the beginning ouf our universe : it expanded to huge dimensions in a very short time, at a speed vastly superior to speed of light. That is an astounding paradox which needs to be explored.

[paxxton]

Iconoclaste wrote...

paxxton wrote...

The light-speed limit is valid within a flat spacetime continuum.

Which doesn't mean it's invalidated in other circumstances. Lack of observation and meassurements.

But there is evidence that speeds much greater than the speed of light have been attained, at least at the beginning ouf our universe : it expanded to huge dimensions in a very short time, at a speed vastly superior to speed of light. That is an astounding paradox which needs to be explored.

The speed of quantum entanglement greatly exceeds the speed of light. I read somewhere it was measured in a lab.

Modifié par paxxton, 05 novembre 2012 - 02:55 .

[demersel]

paxxton wrote...

The speed of quantum entanglement greatly exceeds the speed of light. I read somewhere it was measured in a lab.

Quantum entanglement has no speed. That is the whole point of it. 
 

Modifié par demersel, 05 novembre 2012 - 02:56 .

[paxxton]

demersel wrote...

paxxton wrote...

The speed of quantum entanglement greatly exceeds the speed of light. I read somewhere it was measured in a lab.

Quantum entanglement has no speed. 

It does but it's so great that people instead call it instantaneous.

Modifié par paxxton, 05 novembre 2012 - 02:57 .

[Iconoclaste]

paxxton wrote...

Iconoclaste wrote...

paxxton wrote...

The light-speed limit is valid within a flat spacetime continuum.

Which doesn't mean it's invalidated in other circumstances. Lack of observation and meassurements.

But there is evidence that speeds much greater than the speed of light have been attained, at least at the beginning ouf our universe : it expanded to huge dimensions in a very short time, at a speed vastly superior to speed of light. That is an astounding paradox which needs to be explored.

The speed of quantum entanglement greatly exceed the speed of light. I read somewhere it was measured in a lab.

This has yet to be proven. It is currently assumed that these "entangled states" are coincidental, and measuring precisely at the quantic level often results in happy scientists publishing papers in minutes after their discoveries only to get slapped back in rank by the community shortly after.

[demersel]

You guys should really rewatch Sphere.
The thing is very much like the Sphere in Firewalker, and it affects people very much like indoctrination - shared memories, illusions etc.

[paxxton]

demersel wrote...

You guys should really rewatch Sphere.
The thing is very much like the Sphere in Firewalker, and it affects people very much like indoctrination - shared memories, illusions etc.

I don't take my scientific knowledge from movies.

[spotlessvoid]

They did an experiment at the Hadron Collider where they sent two entangled particles in opposite directions. One had a shorter distance to travel and upon reaching it's destination it's counterpart reacted at a speed significantly faster than light travels. I can't remember how much faster. Of course that's information being transferred, so oit proves nothing about matter exceeding those speeds

Modifié par spotlessvoid, 05 novembre 2012 - 03:02 .

[Iconoclaste]

paxxton wrote...

demersel wrote...

Quantum entanglement has no speed.

It does but it's so great that people instead call it instantaneous.

I think this was derived from the search for the "gravity particle", wasn't it?

Since gravity is deemed to have "instantaneous effects" whatever the distance, it points towards a force carried over at speeds greater than that of light. But I wonder why Stephen Hawkings bet 100$ with fellow scientists that they will not find the Higgs boson...

[demersel]

paxxton wrote...

I don't take my scientific knowledge from movies.

Yes. For you it is Initially X-box Exclusive Games only. Right. 

[demersel]

Iconoclaste wrote...
But I wonder why Stephen Hawkings bet 100$ with fellow scientists that they will not find the Higgs boson...

Maybe because he can afford to lose that bet, and the gesture looks grand and makes a great publicity story? 

Modifié par demersel, 05 novembre 2012 - 03:03 .

[paxxton]

Iconoclaste wrote...

paxxton wrote...

demersel wrote...

Quantum entanglement has no speed.

It does but it's so great that people instead call it instantaneous.

I think this was derived from the search for the "gravity particle", wasn't it?

Since gravity is deemed to have "instantaneous effects" whatever the distance, it points towards a force carried over at speeds greater than that of light. But I wonder why Stephen Hawkings bet 100$ with fellow scientists that they will not find the Higgs boson...

He apparently lost it.