Physics Smart Guys Question (chingon)

[Chingon]

Take that New Coke!

[mcmwcat]

A step in the right direction is to realize that time IS just another dimension.  When dealing in relativistic dynamics, you use a 4-vector (ct,-x,-y,-z) instead of the regular 3-vector (x,y,z).  

Hmmm...We must look like a bunch of bumbling retards to advanced alien races then, what with our not being able to move around in time.

We do move in time!  In fact one of the neat things about relativity is that that 4-vector I used about "position" well, it turns about to be invariant which is means that if you take something akin to its magnitude( ct^2 -x^2-y^2-z^2) it always stays the same value.  As a consequence we are always moving through space-time at the speed of light, it just depends on in what direction (ct,x,y,z).  When you are sitting still you are moving at the speed of in the direction of time.  When you move through a space-coordinate you are moving through time slower since the magnitude of the 4 vector must stay the same.  Imagine a right triangle, once side is your speed through time, the other is your speed through space, and the hypotenuse is your speed through space-time which must always equal c^2 (c=the speed of light).  You make one side bigger, the other must get smaller to compensate.  So the faster you go, the more time slows down for you.  This has been experimentally shown with atomic clocks.

As for going backwards in time, well you would need to be able to go faster than the speed of light, which is unfortunately impossible.

   good stuff Chingy!

i like the idea of the universe as an expanding balloon.

[Rick Daris]

do you think the whole going faster than the speed of light is always going to be impossible? what if humans are still around in 500 years or so... don't you think we'll have figured it out by then?

[Chingon]

do you think the whole going faster than the speed of light is always going to be impossible? what if humans are still around in 500 years or so... don't you think we'll have figured it out by then?

Pretty much impossible to move locally through space-time faster than the speed of light. 

BUT

It might be theoretically possible to move an effective distance greater than the speed of light allows by using wormholes or something that bends space-time.  Very far fetched though and probably technologically impossible as well. :(

[steve dave]

Very far fetched though and probably technologically impossible as well. :(

God you are a sh1tty scientist.  Remind me not hire you to help with my wild experiments.

[Chingon]

Very far fetched though and probably technologically impossible as well. :(

God you are a sh1tty scientist.  Remind me not hire you to help with my wild experiments.

You'll be sorry when my race of atomic supermen are finished.

[ew2x4]

Im kinda curious about this....do scientists, physicists, and others of the sort go to church? or is that not something that goes well with their profession?

I always wondered why it's always science vs Christianity.

I mean, what is more divine that a thunderous explosion out of nothing and suddenly everything is created?

[LimestoneOutcropping]

Pretty sure it is all like the last episode of Lost.  2 dudes are just playing a game with all of us and every time we just jack it up fighting over religion, territory, etc.  Pretty soon we will blow this joint up and the 2 dudes will be all, "those stupid frackers did it again".  Then it will start all over. 

Hey, thanks for the spoiler &@#%face.  I was going to rent the last season to get caught up.

 

[LimestoneOutcropping]

do you think the whole going faster than the speed of light is always going to be impossible? what if humans are still around in 500 years or so... don't you think we'll have figured it out by then?

Excellent point.  What if some 1920's scientists had decided that you can't go faster than the speed of sound or microwave popcorn?  And just given up like that telling all the other scientists, trust me dudes it can't be done. 

[ew2x4]

do you think the whole going faster than the speed of light is always going to be impossible? what if humans are still around in 500 years or so... don't you think we'll have figured it out by then?

According to my bible, in the far future the humans will move to a new set of planets. After generations pass, the humans flee from the twelve colonies away from extinction in order to find earth. They have the ability to go faster than light with their FTL drives.

[frankencat]

do you think the whole going faster than the speed of light is always going to be impossible? what if humans are still around in 500 years or so... don't you think we'll have figured it out by then?

According to my bible, in the far future the humans will move to a new set of planets. After generations pass, the humans flee from the twelve colonies away from extinction in order to find earth. They have the ability to go faster than light with their FTL drives.

What's really gotten into your head, mushrooms or scientologists

[mcmwcat]

do you think the whole going faster than the speed of light is always going to be impossible? what if humans are still around in 500 years or so... don't you think we'll have figured it out by then?

Pretty much impossible to move locally through space-time faster than the speed of light. 

BUT

It might be theoretically possible to move an effective distance greater than the speed of light allows by using wormholes or something that bends space-time.  Very far fetched though and probably technologically impossible as well. :(

can nothing move FTL?  what about Tachyons?  (thanks Wiki)

[FelixRex]

Very far fetched though and probably technologically impossible as well. :(

God you are a sh1tty scientist.  Remind me not hire you to help with my wild experiments.

You'll be sorry when my race of atomic supermen are finished.

LOL. If you really want to rub it in, just remind him that he'll be dead when your supermen go back in time and find a hidden land of dinosaurs.

The Universe at this point in time (IMHO) is expanding so rapidly that for all intents and purposes there is no edge, the "edge" is always moving away faster than the speed of light.

Maybe my memories are just all contextualized by that apt Navigator reference, but this makes me think of The Nothing from The Neverending Story. Which is even scarier than my previous creepy infinity nightmare.

[Chingon]

do you think the whole going faster than the speed of light is always going to be impossible? what if humans are still around in 500 years or so... don't you think we'll have figured it out by then?

Pretty much impossible to move locally through space-time faster than the speed of light.  

BUT

It might be theoretically possible to move an effective distance greater than the speed of light allows by using wormholes or something that bends space-time.  Very far fetched though and probably technologically impossible as well. :(

can nothing move FTL?  what about Tachyons?  (thanks Wiki)

Interestingly enough tachyons can never go slower than the speed of light.

If they exist, they have imaginary mass.  The existence of a tachyon would cause many many problems with the standard model.  People have and are still looking for them I believe, but not very many of them.

[Thin Blue Line]

Chingon, technically c can't be surpassed. Technically. I've always like the Star Trek theory of warp drive, where a "warp" bubble is created, around the ship, in which it is a different universe where the speed of light is far greater that 186,282 mps, allowing the ship to travel (still in the bubble) at speeds greater the the speed of light.

There is also a train of thought that implies that space, time and thought are all intertwined into the same reality. It would then be possible to travel faster than c, just be thinking it into existence. Very fun to consider, also.

[steve dave]

Chingon, technically c can't be surpassed. Technically. I've always like the Star Trek theory of warp drive, where a "warp" bubble is created, around the ship, in which it is a different universe where the speed of light is far greater that 186,282 mps, allowing the ship to travel (still in the bubble) at speeds greater the the speed of light.

I like when they almost got thrown into the sand pit with tentacles coming out of it. 

[Rick Daris]

Chingon, technically c can't be surpassed. Technically. I've always like the Star Trek theory of warp drive, where a "warp" bubble is created, around the ship, in which it is a different universe where the speed of light is far greater that 186,282 mps, allowing the ship to travel (still in the bubble) at speeds greater the the speed of light.

I like when they almost got thrown into the sand pit with tentacles coming out of it. 

i liked the ewoks in that star trek show. some people didn't. but i did.

[steve dave]

Chingon, technically c can't be surpassed. Technically. I've always like the Star Trek theory of warp drive, where a "warp" bubble is created, around the ship, in which it is a different universe where the speed of light is far greater that 186,282 mps, allowing the ship to travel (still in the bubble) at speeds greater the the speed of light.

I like when they almost got thrown into the sand pit with tentacles coming out of it. 

i liked the ewoks in that star trek show. some people didn't. but i did.

Are you talking about thundercats?  Pretty sure you are fwiw. 

[Rick Daris]

Chingon, technically c can't be surpassed. Technically. I've always like the Star Trek theory of warp drive, where a "warp" bubble is created, around the ship, in which it is a different universe where the speed of light is far greater that 186,282 mps, allowing the ship to travel (still in the bubble) at speeds greater the the speed of light.

I like when they almost got thrown into the sand pit with tentacles coming out of it. 

i liked the ewoks in that star trek show. some people didn't. but i did.

Are you talking about thundercats?  Pretty sure you are fwiw. 

lmao. i don't even know what thundercats are.  i'm talking about star trek w/ ewoks and darth vader and that guy from the priceline commercials and the other guy w/ the big ears. s-t-a-r t-r-e-k.

[steve dave]

Chingon, technically c can't be surpassed. Technically. I've always like the Star Trek theory of warp drive, where a "warp" bubble is created, around the ship, in which it is a different universe where the speed of light is far greater that 186,282 mps, allowing the ship to travel (still in the bubble) at speeds greater the the speed of light.

I like when they almost got thrown into the sand pit with tentacles coming out of it.  

i liked the ewoks in that star trek show. some people didn't. but i did.

Are you talking about thundercats?  Pretty sure you are fwiw.  

lmao. i don't even know what thundercats are.  i'm talking about star trek w/ ewoks and darth vader and that guy from the priceline commercials and the other guy w/ the big ears. s-t-a-r t-r-e-k.

Oh, thought you were talking about thundercats where the robot cats are driven by people and form up to make a giant robot guy.

EDIT:  Nevermind, that's Snarf, not Ewok.  Sorry. 

[cyclist]

Chingon, technically c can't be surpassed. Technically. I've always like the Star Trek theory of warp drive, where a "warp" bubble is created, around the ship, in which it is a different universe where the speed of light is far greater that 186,282 mps, allowing the ship to travel (still in the bubble) at speeds greater the the speed of light.

I like when they almost got thrown into the sand pit with tentacles coming out of it. 

i liked the ewoks in that star trek show. some people didn't. but i did.

Tribbles:




[asking about the tribbles]
Capt. Kirk: Scott, you didn't transport them into space did you?
Scotty: Captain Kirk, that'd be inhuman.
Capt. Kirk: Well, where are they?
Scotty: I gave them a very good home, sir.
Capt. Kirk: WHERE?
Scotty: I gave 'em to the Klingons, sir.
Capt. Kirk: You gave them to the Klingons?
Scotty: Aye, sir. Before they went into warp, I transported the whole kit'n kaboodle into their engine room, where they'll be nay tribble at all.

[FelixRex]

Remember when the ewoks had their own movie with Wilford Brimley where they battled that huge green monster? Had that on a VHS tape from the ABC saturday night movie or whatever for years. Loved it. So terrible, but I loved it. Battle for Endor?

[Thin Blue Line]

Chingon, technically c can't be surpassed. Technically. I've always like the Star Trek theory of warp drive, where a "warp" bubble is created, around the ship, in which it is a different universe where the speed of light is far greater that 186,282 mps, allowing the ship to travel (still in the bubble) at speeds greater the the speed of light.

I like when they almost got thrown into the sand pit with tentacles coming out of it. 

i liked the ewoks in that star trek show. some people didn't. but i did.

Are you talking about thundercats?  Pretty sure you are fwiw. 

lmao. i don't even know what thundercats are.  i'm talking about star trek w/ ewoks and darth vader and that guy from the priceline commercials and the other guy w/ the big ears. s-t-a-r t-r-e-k.

You. Don't. Know. Thundercats...........?!?

The "Original Powercat"?

[Thin Blue Line]

[Oklahoma_Cat]

more evidence that cops are on the bottom of the food chain.

[Thin Blue Line]

more evidence that cops are on the bottom of the food chain.

 

[steve dave]

THUNDERCATS!

[hemmy]

http://news.cnet.com/8301-13860_3-10286732-56.html?tag=rtcol;inTheNewsNow

[FelixRex]

Economist Review of "Much Ado About Nothing (kind of related)

DOES anything remain when everything is taken away?...Not only was matter created at that point, so too were the forces that govern it and the fields that they generate. Further, time itself burst forth. Where did all this stuff come from?...Stripped of all matter, forces and fields, would space and time exist?...

See? It starts interesting. Then you get this  :

Mr Close surveys 3,000 years of thinking to arrive at the modern solution to the question of where everything came from. The answer is nothing. Why the universe is as it is remains an enigma to science.

[steve dave]

LINK

So, I understand the heat death concept.  Pretty clear there.  Really wish we could figure out where the heat came from in the first place.