EPTScientists go below Absolute Zero - Page 8
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Note from micronesia: please read the thread before making comments about how we have just turned physics on its head. | ||
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lumencryster
35 Posts
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RaelSan
Belgium223 Posts
Ok thx ( especially because I could have googled it :D ) funny because you are pretty famous for differenciating yourselves from Europe :p But there must be some obvious reasons | ||
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Mortal
2943 Posts
THE PUN, IT BURNS | ||
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GGTeMpLaR
United States7226 Posts
On January 07 2013 04:24 Derrida wrote: so if I get this right, they have enhanced a gas so that its atoms can shift from low to high energy states, making it possible for these atoms to move at 0K, and therefore creating the possibility of the temperature to get colder than 0K? 0K still isn't possible. Basically, the modification of the atoms (not sure exactly sure what the nature of the modification is) reverses how their entropy will change in response to an increase or decrease in energy (essentially breaking the second law of thermodynamics - correct me anyone if this is wrong). Mathematically, this gives the function a negative value. Negative-temperature isn't colder than 0K though; if I understand it right, it's still theoretically hotter than any positive-temperature due to how it would behave in relation to a nearby positive-temperature body. All heat would flow from the negative to the positive in any circumstance. The theoretical implications of this seem odd if you placed a body at -1K next to a body at 999,999K. Heat would theoretically flow from the -1K into the 999,999K body? | ||
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remedium
United States939 Posts
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Desertfaux
Netherlands276 Posts
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Chargelot
2275 Posts
On January 07 2013 06:12 Desertfaux wrote: Where's my flying car, goddamnit, its 2013 already. It's called a plane. On January 07 2013 06:08 remedium wrote: It's only a matter of time before physicists pull a Mines of Moria and unleash a Balrog on us. Just sayin'. No. Just sayin'. On January 07 2013 04:56 lumencryster wrote: now i'm going to wait till we can get from point A to point B faster than the speed of light. i mean, people didn't think it was possible to fly, seems ridiculous enough since we don't have wings, right? You cannot move faster than the speed of light. You cannot move at the speed of light. Any passage that you take to arrive somewhere, light will travel through it faster. Light will always win. | ||
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Microsloth
Canada194 Posts
On January 07 2013 07:16 Chargelot wrote: It's called a plane. No. Just sayin'. You cannot move faster than the speed of light. You cannot move at the speed of light. Any passage that you take to arrive somewhere, light will travel through it faster. Light will always win. Unless you're that particle that was accelerated beyond the speed of light. Words like cannot and always means you're predicting the future. To that I say: You'll never accurately predict the entire future. Ever. Suck it. | ||
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Ghostcom
Denmark4782 Posts
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adwodon
United Kingdom592 Posts
On January 07 2013 07:22 Microsloth wrote: Unless you're that particle that was accelerated beyond the speed of light. Words like cannot and always means you're predicting the future. To that I say: You'll never accurately predict the entire future. Ever. Suck it. What particle? You mean the one detected by faulty equipment at CERN? Particles cannot travel faster than the speed of light, to suggest otherwise is to suggest that the fundamental underpinnings of physics are completely wrong, and considering most modern technology relies heavily on these concepts I'd say they are correct. However, quantum information can 'travel' faster than the speed of light via entanglement. This is not classical information though and I'm afraid I reach my limit when talking about these kinds of things, so I can only really say that it is impossible to communicate through quantum teleportation due to states being impossible to measure accurately. You are correct when you say we can't predict the future, but what you're saying is akin to someone suggesting that one day everyone in America might wake up and start speaking Chinese out of the blue, you can't say it won't happen because the future hasn't happened yet, but it violates everything we know about language, learning, behavior etc so its a pretty solid bet (aka solid fact) that it definitely won't happen. | ||
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Shival
Netherlands643 Posts
On January 07 2013 07:16 Chargelot wrote: It's called a plane. No. Just sayin'. You cannot move faster than the speed of light. You cannot move at the speed of light. Any passage that you take to arrive somewhere, light will travel through it faster. Light will always win. While the possibility of matter speeding faster than the speed of light seems rather impossible to us now, and may very well be always impossible, someone of science will never say never. It's one of the principles of science to not preclude something just because it seems impossible with our current understanding. There's countless times in history that we've said XYZ is impossible to have the idea broken a couple years later. On January 07 2013 07:47 adwodon wrote: What particle? You mean the one detected by faulty equipment at CERN? Particles cannot travel faster than the speed of light, to suggest otherwise is to suggest that the fundamental underpinnings of physics are completely wrong, and considering most modern technology relies heavily on these concepts I'd say they are correct. However, quantum information can 'travel' faster than the speed of light via entanglement. This is not classical information though and I'm afraid I reach my limit when talking about these kinds of things, so I can only really say that it is impossible to communicate through quantum teleportation due to states being impossible to measure accurately. You are correct when you say we can't predict the future, but what you're saying is akin to someone suggesting that one day everyone in America might wake up and start speaking Chinese out of the blue, you can't say it won't happen because the future hasn't happened yet, but it violates everything we know about language, learning, behavior etc so its a pretty solid bet (aka solid fact) that it definitely won't happen. He might've meant Tachyon particles (hypothesized of course). You're thinking of particles that are below the speed of light to be sped up to a speed that is higher than or the same as the speed of light. | ||
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Alex1Sun
494 Posts
On January 07 2013 04:56 lumencryster wrote: now i'm going to wait till we can get from point A to point B faster than the speed of light. i mean, people didn't think it was possible to fly, seems ridiculous enough since we don't have wings, right? I did it in the lab, and before me it was done in at least in a dozen other labs. Called quantum teleportation. Still requires a classical channel for read-out though... | ||
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Alex1Sun
494 Posts
On January 07 2013 07:47 adwodon wrote: What particle? You mean the one detected by faulty equipment at CERN? Particles cannot travel faster than the speed of light, to suggest otherwise is to suggest that the fundamental underpinnings of physics are completely wrong, and considering most modern technology relies heavily on these concepts I'd say they are correct. However, quantum information can 'travel' faster than the speed of light via entanglement. This is not classical information though and I'm afraid I reach my limit when talking about these kinds of things, so I can only really say that it is impossible to communicate through quantum teleportation due to states being impossible to measure accurately. You are correct when you say we can't predict the future, but what you're saying is akin to someone suggesting that one day everyone in America might wake up and start speaking Chinese out of the blue, you can't say it won't happen because the future hasn't happened yet, but it violates everything we know about language, learning, behavior etc so its a pretty solid bet (aka solid fact) that it definitely won't happen. This applies only to what we know. What about dark matter, dark energy and other unknown things? Maybe harnessing tachyons will someday allow faster than light communication... Well, likely not, but we don't know now for sure. As for quantum teleportation, faster than light travel of quantum states, although doesn't transmit classical information, makes quantum communication and quantum cryptography possible - they are not faster, but much more secure. | ||
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GGTeMpLaR
United States7226 Posts
On January 07 2013 07:47 adwodon wrote: You are correct when you say we can't predict the future, but what you're saying is akin to someone suggesting that one day everyone in America might wake up and start speaking Chinese out of the blue, you can't say it won't happen because the future hasn't happened yet, but it violates everything we know about language, learning, behavior etc so its a pretty solid bet (aka solid fact) that it definitely won't happen. I'd say your example is a lot less believable because it literally makes no sense that it could occur without a cause (which is what "out of the blue" implies). Having a higher velocity than the speed of light can at least make some sense if our current set of scientific paradigms is flawed, incomplete, or just wrong, which is definitely more possible than you're admitting. | ||
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Entirety
1423 Posts
So, place an object at -100K next to an object at 100K. Energy will flow from the object at -100K to the object at 100K. Since the object at 100K is receiving energy, let's say it increases to 150K. As for the object at -100K, which is currently transferring energy, will it change to -150K or to -50K? And why? | ||
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GGTeMpLaR
United States7226 Posts
On January 07 2013 09:33 Entirety wrote: I have a question. So, place an object at -100K next to an object at 100K. Energy will flow from the object at -100K to the object at 100K. Since the object at 100K is receiving energy, let's say it increases to 150K. As for the object at -100K, which is currently transferring energy, will it change to -150K or to -50K? And why? Would like an answer and explanation to this question too! | ||
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Aerisky
United States12129 Posts
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lumencryster
35 Posts
On January 07 2013 07:16 Chargelot wrote: You cannot move faster than the speed of light. You cannot move at the speed of light. Any passage that you take to arrive somewhere, light will travel through it faster. Light will always win. i never said move faster than the speed of light, i said get from point A to point B. | ||
imallinson
United Kingdom3482 Posts
On January 07 2013 02:17 Chargelot wrote: Allow me to restate To a 0.01K system, a -100K system and a 100K system have the same energy to offer it, and independent of each other, the energy flow from a -100K system to a 0.01K system and the energy flow from a 100K system to a 0.01K system would be about the same, within reason. Would a 100K system actually feel hot in your hand? No, it'd fucking turn your hand to ice and your hand would fall off of your arm. Of course. I think I must have been really tired when I wrote that because I kept reading it as 100k K. Obviously 100K would be really cold because its -173 C. | ||
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Mikau
Netherlands1446 Posts
On January 06 2013 13:40 micronesia wrote: I believe a large mass of particle, influenced by gravity (a star) is another example of this. Adding energy causes the particles to 'orbit' at a higher altitude, slowing them down (as per satellite motion). I think it's funny that all these complex and intricate laws and theories get change upon change upon change, whereas something as mathmatically simple as Keppler motions still hold true after all this time. | ||
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