Spaceship Could Fly Faster Than Light

[naveen_reloaded]

Travel by bubble might seem more appropriate for witches in Oz, but two physicists suggest that a future spaceship could fold a space-time bubble around itself to travel faster than the speed of light.
We're talking about the very distant future, of course.
The idea involves manipulating dark energy – the mysterious force behind the universe's ongoing expansion – to propel a spaceship forward without breaking the laws of physics.
"Think of it like a surfer riding a wave," said Gerald Cleaver, a physicist at Baylor University. "The ship would be pushed by the spatial bubble and the bubble would be traveling faster than the speed of light."
In theory, the universe grew faster than the speed of light for a very short time after the Big Bang, driven by the dark energy that represents about 74 percent of the total mass-energy budget in the universe. Dark matter constitutes 22 percent of the budget, and normal matter (stars, planets and everything you see) makes up the remaining 4 percent or so.
Strange as it sounds, current evidence supports the notion that the fabric of space-time can expand faster than the speed of light, because the reality in which light travels is itself expanding.
Cleaver and Richard Obousy, a Baylor graduate student, tapped the latest idea in string theory to devise how to manipulate dark energy and accelerate a spaceship. Their notion is based on the Alcubierre drive, which proposes expanding space-time behind the spaceship while also shrinking space-time in front.
String theorists had believed that a total of 10 dimensions exist, including height, width, length and time. The other six dimensions exist largely as unknowns, but everything is based on hypothetical one-dimensional strings. A newer theory, called M-theory, suggests that those strings all vibrate in yet another dimension.
Manipulating that additional dimension would alter dark energy in terms of height, width, and length, Cleaver and Obousy theorize. Such a capability would permit the altering of space-time for a spaceship, taking advantage of dark energy's effect on the universe.
"The dark energy is simultaneously decreased just in front of the ship to decrease (and bring to a stop) the expansion rate of the universe in front of the ship," Cleaver told SPACE.com. "If the dark energy can be made negative directly in front of the ship, then space in front of the ship would locally contract."
This loophole means that the spaceship would not conflict with Einstein's Theory of Relativity, which states that objects accelerating to the speed of light require an infinite amount of energy.
However, the Baylor physicists estimate that manipulating dark energy through the extra dimension requires energy equivalent to the converting the entire mass of Jupiter into pure energy — enough to move a ship measuring roughly 33 feet (10 meters) by 33 feet by 33 feet.
"That is an enormous amount of energy," Cleaver said. "We are still a very long ways off before we could create something to harness that type of energy."
The workaround solution may leave fans of Einstein pleased. But for now, faster-than-light travel remains, like Oz, a pleasant fantasy.


http://www.livescience.com/space/080...arp-speed.html

[Faun]

so the laws are changed now...lolz
Unknown is infinite

[Gigacore]

This is something similar to "Ion Drive" or the "Ion Thurst" theory. But it's way too complicated and difficult to achieve.

[Krazzy Warrior]

Originally Posted by T159

so the laws are changed now...lolz
Unknown is infinite

fully change of physics..

[IronManForever]

Of course; its evident that to have negetive energy to cause a space-time compression infront of the spaceship would require tremendous amount of energy, so much so that it would be enough for a trillion earths' energy needs till the time universe collapses.
Trust me; Buzz lightyear cartoons are less fiction than this.
And I'd bet that Stephen Hawking's book 'A Brief History of Time' gives you an experience of wilder fantasies than this.

[chesss]

^dimag ki dahi kardo

abt the topic, its just a theory.

[naveen_reloaded]

Todays theory are tom facts! And proofs...

[chesss]

^True , but there are prolly 1000 different theories contradicting each other.

[x3060]

hope these dreams come true ONCE.

[MetalheadGautham]

seems impossible. C = max possible velocity. period.

[IronManForever]

Originally Posted by MetalheadGautham

seems impossible. C = max possible velocity. period.

According to what we have studied till 12th class? Isnt it?

FYI It is assumed that the maximum velocity attainable is C.
Beyond that it's unchartered territory.

Analogy: Classical mechanics vs Quantum mechanics. Classical mechanics does not explain the motion, etc of very small particles. To explain that; quantum mechanics evolved.
Which means; there still needs to come a law which undertakes the fact that
velocity can be greater than C.

What that means; current laws are applicable only to objects have velocity less than or equal to C. The current laws do not enter the scenarios where velocity>C. Period.

[Faun]

Originally Posted by MetalheadGautham

seems impossible. C = max possible velocity. period.

metaaaaaaal anything is possible. You didn't know science's shortcomings. Its all about approximation most of the time

[ax3]

wow ..... physics is changing ......

[MetalheadGautham]

Originally Posted by IronManForever

According to what we have studied till 12th class? Isnt it?

FYI It is assumed that the maximum velocity attainable is C.
Beyond that it's unchartered territory.

Analogy: Classical mechanics vs Quantum mechanics. Classical mechanics does not explain the motion, etc of very small particles. To explain that; quantum mechanics evolved.
Which means; there still needs to come a law which undertakes the fact that
velocity can be greater than C.

What that means; current laws are applicable only to objects have velocity less than or equal to C. The current laws do not enter the scenarios where velocity>C. Period.

actually, classical mechanics was for velocities much below C. It was relativity if I remember right, which dealt with velocities close to C.

Anyway, I remembered that there DO exist particles (I forgot the name) which go faster than light. But its supposed to be for extremely short distances or something.

[eggman]

Originally Posted by MetalheadGautham

actually, classical mechanics was for velocities much below C. It was relativity if I remember right, which dealt with velocities close to C.

Yeah, classic mechanics start breaking up as soon as particle reaches 1% of light speed.
But its still pretty fast!!!!

Originally Posted by MetalheadGautham

Anyway, I remembered that there DO exist particles (I forgot the name) which go faster than light. But its supposed to be for extremely short distances or something.

The particles that can travel faster than light as called Tachyons. And yes they do exist , but only in theory!! It's an hypothetical particle.

Originally Posted by IronManForever

FYI It is assumed that the maximum velocity attainable is C.
Beyond that it's unchartered territory.

Wrong!! It is not assumed.It's a fact. In fact we can go back into the past if we can travel faster than light. But it is impossible since the mass of object , as we approach the infinity, will keep on increasing and so will the energy required. If a object has to reach c, it'll have to be supplied by infinity amount of energy since it's mass , at c will be infinity .

[chesss]

wow ..... physics is changing ......

physics has always been changing , that is the pure awesomeness of science.
Just wait for LHC now..

[IronManForever]

Originally Posted by MetalheadGautham

actually, classical mechanics was for velocities much below C. It was relativity if I remember right, which dealt with velocities close to C.

Yes; I know that. Im not telling that classical mechanics are for object with velocity upto C; infact much lesser than that.
I just gave an analogy to tell you that there are still laws to evolve which undertake velocity greater than C. Like; once very-small particles were found not-obeying the classical mechanics; quantum mechanics evolved. Similarly; todays laws are for velocity less than or equal to C; and we will definitely get a law for objects moving faster than light, once we come across any such object and study it in detail. Hope Im clear with my 'two-cents'.

[Faun]

Originally Posted by eggman

But it is impossible

yolks do use brain but its however again yolks

Who gave you the proof for impossible ?

[The_Devil_Himself]

bleh it is very much possible.

for all you naabs(),I,for a fact,know that wave velocity(and not the propagation velocity) exceeds the velocity of light under some conditions.I can dig out more details if you guys insist,or maybe not cus that would mean a lot of hard work.

[IronManForever]

Originally Posted by The_Devil_Himself

wave velocity(and not the propagation velocity) exceeds the velocity of light

Do you mean to say that; the wave which is infact energy moving in a curved path, is traversing more distance? than it's linear propagation? in the same time?

[amitava82]

Is it something new? I still remember an article I read in sometime around 1998 about some laser beam that travels faster than light. I don't remember how they did it (10 years old news wtf). I faintly remember something about diamond, laser beam, refractions and sh!T.. >.<

[iMav]

Have you guys never seen the ultra legendary show called - Star Trek?

[The_Devil_Himself]

Originally Posted by IronManForever

Do you mean to say that; the wave which is infact energy moving in a curved path, is traversing more distance? than it's linear propagation? in the same time?

not exactly,you see the wave of energy which is moving along the strings making up time and space is actually transversing more distance along a hyperbolic curved path at different time instances,these events mostly occur in two or more parallel universes connected by some loose strings.

[Faun]

^^yep Devil talks some serious sh!t, appreciable post of yours (duh why does every other post a troll)

[iMav]

What rubbish, some loose strings! C'mon man there is nothing called as loose strings. Guys watch Deja Vu, all your Time traveling concepts will be cleared. Denzel Washington movie.

[amitava82]

Originally Posted by The_Devil_Himself

not exactly,you see the wave of energy which is moving along the strings making up time and space is actually transversing more distance along a hyperbolic curved path at different time instances,these events mostly occur in two or more parallel universes connected by some loose strings.

He does not know anything what he just told. Anyone wanna bet? >.<

[Faun]

^^atleast near to what i read that hyperbolic thing is same when i was a physics geek

but me too dont know nothing about it now

[The_Devil_Himself]

Originally Posted by iMav

What rubbish, some loose strings!.

heh,another string theory naab.Lose strings or complete strings are the only way for time-travel and parallel universes to be possible in string theory,which is in fact the central theme of string theory.Gravitons are supposedly made up of these complete strings.A lot of scientists and theories spectulated their existence,never been seen as of now.Gravitons are the holy grail of GUT physicsts right atm.

Originally Posted by amitava82

He does not know anything what he just told. Anyone wanna bet? >.<

Of course I do.
YOU LOOSE,and since I don't like US currency much,you can send me your bloody PSP instead.

Originally Posted by IronManForever

Do you mean to say that; the wave which is infact energy moving in a curved path, is traversing more distance? than it's linear propagation? in the same time?

Of course this sh!t was meant not to mean anything.:X.

[Abhishek Dwivedi]

That called "Warp Drive" as in Star Trek and "Jump Drive" as in BattleStar Galactica

[The_Devil_Himself]

too much TV makes Johnny a dull boi.xD.