Scientist find possible inhabitable planet

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Re: Scientist find possible inhabitable planet

Postby nicomon » Thu Oct 07, 2010 3:12 am

Valhallen wrote:
Ace of Flames wrote:Considering it falls up, wouldn't fire be negative mass?
So to travel outside the solar system, we need to set ourselves on fire.
Relative to the air, yes. however, it seems that building a stable wormhole requires something with negative mass relative to empty space. You can get something sort of like that via the Casimir effect, but that's not nearly enough from what I've heard.


Theoretically/Speculatively speaking, wouldn't switching the locations(or charges, considering) of the electrons and protons in the atoms of the material work? It wouldn't be negative mass, but the inverted charge could have an effect of some kind.
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Re: Scientist find possible inhabitable planet

Postby Valhallen » Thu Oct 07, 2010 4:07 am

@zepherin
Well, not quite. Quantum teleportation works about thusly: Particles 1, 2, and 3 are at Point A. Particles 1 and 2 are entangled, and Particle 3 represents a qubit that is to be transported to Point B. Particle 2 is moved (not FTL) to Point B. An operation is performed on particles 1 and 3 such that their superposition is collapsed, classical information about Particles 1 and 3 is produced, and Particle 2 now has information about particle 3 in its quantum state. The classical information is sent (not FTL) to Point B and used to apply a transformation that converts the quantum state of Particle 2 into an exact replica of the original state of Particle 3, producing the qubit intact at Point B. Hence potentially useful for some applications, but not FTL travel or transmission of information.

Wormholes, on the other hand, would permit FTL travel according to certain solutions of the laws of physics as currently understood, even if they are completely impractical from an engineering point of view, and may not, in fact, exist.

nicomon wrote:Theoretically/Speculatively speaking, wouldn't switching the locations(or charges, considering) of the electrons and protons in the atoms of the material work? It wouldn't be negative mass, but the inverted charge could have an effect of some kind.
Switching the locations would get you plasma that would quickly return to normal atoms, and switching the charges would get you antimatter. Both still have positive mass, and would therefore be useless for propping open a wormhole unless used as a scaffolding for something with negative mass. Antimatter has some interesting properties, but I don't know of any that would be particularly relevant.
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Re: Scientist find possible inhabitable planet

Postby nicomon » Thu Oct 07, 2010 4:48 am

Valhallen wrote:@zepherin
Well, not quite. Quantum teleportation works about thusly: Particles 1, 2, and 3 are at Point A. Particles 1 and 2 are entangled, and Particle 3 represents a qubit that is to be transported to Point B. Particle 2 is moved (not FTL) to Point B. An operation is performed on particles 1 and 3 such that their superposition is collapsed, classical information about Particles 1 and 3 is produced, and Particle 2 now has information about particle 3 in its quantum state. The classical information is sent (not FTL) to Point B and used to apply a transformation that converts the quantum state of Particle 2 into an exact replica of the original state of Particle 3, producing the qubit intact at Point B. Hence potentially useful for some applications, but not FTL travel or transmission of information.

Wormholes, on the other hand, would permit FTL travel according to certain solutions of the laws of physics as currently understood, even if they are completely impractical from an engineering point of view, and may not, in fact, exist.

nicomon wrote:Theoretically/Speculatively speaking, wouldn't switching the locations(or charges, considering) of the electrons and protons in the atoms of the material work? It wouldn't be negative mass, but the inverted charge could have an effect of some kind.
Switching the locations would get you plasma that would quickly return to normal atoms, and switching the charges would get you antimatter. Both still have positive mass, and would therefore be useless for propping open a wormhole unless used as a scaffolding for something with negative mass. Antimatter has some interesting properties, but I don't know of any that would be particularly relevant.


What if Particle 2 of the entanglement is antimatter, and Particle 1 is still normal matter?
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Re: Scientist find possible inhabitable planet

Postby Vegedus » Thu Oct 07, 2010 6:08 am

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Re: Scientist find possible inhabitable planet

Postby Mathias » Thu Oct 07, 2010 10:19 am

Divide by zero and you open wormholes to parallel dimensions.
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Re: Scientist find possible inhabitable planet

Postby Morpheus » Thu Oct 07, 2010 10:41 am

I divided by 0 once.
But that's a story for another day.
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Re: Scientist find possible inhabitable planet

Postby Vegedus » Wed Oct 20, 2010 1:42 am

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