Search found 29 matches
- Sat Jun 18, 2011 2:24 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Hawking radiation evidence
- Replies: 31
- Views: 2565
Re: Hawking radiation evidence
I'm pretty sure you're just a poorly written computer program. A real person wouldn't keep asking the same question over and over after it had already been answered (many times). I figure he's the one from the future who actually invents the time machine, but it's not working quite right and he kee...
- Sat Jun 18, 2011 12:24 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Hawking radiation evidence
- Replies: 31
- Views: 2565
Re: Hawking radiation evidence
I think this is the article that says virtual particles travel faster than light and even backwards in time. http://www.desy.de/user/projects/Physics/Quantum/virtual_particles.html I'm pretty sure you're just a poorly written computer program. A real person wouldn't keep asking the same question ov...
- Sat Jun 18, 2011 12:17 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Hawking radiation evidence
- Replies: 31
- Views: 2565
Re: Hawking radiation evidence
if im reading relativity correct,please correct me if im wrong,if something were to travel faster than light in one frame it will travel backwards in time? If pigs could fly. The "if" in this case is physically meaningless. Since nothing physical can travel faster than c with respect to a...
- Fri Jun 17, 2011 11:57 pm
- Forum: The Library: Information Desk and Educational Resources
- Topic: Hawking radiation evidence
- Replies: 31
- Views: 2565
Re: Hawking radiation evidence
On this article,maybe i reading it wrong if you scroll down to "faster than light?" it says they do travel backwards in time. http://en.wikipedia.org/wiki/Propagator You are reading it wrong. You are failing to distinguish between a mathematical (or even physical) equivalency to going fas...
- Fri Jun 17, 2011 11:26 pm
- Forum: The Library: Information Desk and Educational Resources
- Topic: Hawking radiation evidence
- Replies: 31
- Views: 2565
Re: Hawking radiation evidence
So virtual particles don't time travel backwards? In the way you seem to intuit the meaning of traveling backwards in time, no, they don't. No particles travel backwards in time, although it is sometimes convenient to treat them that way mathematically, within the framework of current theory. On th...
- Fri Jun 17, 2011 6:30 pm
- Forum: The Library: Information Desk and Educational Resources
- Topic: Hawking radiation evidence
- Replies: 31
- Views: 2565
Re: Hawking radiation evidence
What do you mean by time travel? The movie definition? Or relativistic and quantum effects? what would be the difference? The "movie definition" suggests something physically traveling backwards in time, carrying information. No particle does that, virtual or otherwise. But in quantum mec...
- Fri Jun 17, 2011 8:27 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Hawking radiation evidence
- Replies: 31
- Views: 2565
Re: Hawking radiation evidence
what would be the difference?Aescens wrote:What do you mean by time travel? The movie definition? Or relativistic and quantum effects?outlaw wrote:do virtual particles time travel?
- Fri Jun 17, 2011 4:37 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Hawking radiation evidence
- Replies: 31
- Views: 2565
Re: Hawking radiation evidence
so they do time travel backwards?neufer wrote:outlaw wrote:
do virtual particles time travel?
- You have no idea
- Fri Jun 17, 2011 12:04 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Hawking radiation evidence
- Replies: 31
- Views: 2565
Re: Hawking radiation evidence
do virtual particles time travel?
- Thu Jun 16, 2011 10:27 pm
- Forum: The Library: Information Desk and Educational Resources
- Topic: Hawking radiation evidence
- Replies: 31
- Views: 2565
Re: Hawking radiation evidence
how come all the information i get is connecting virtual particles with hawking radiation?neufer wrote:Of course.outlaw wrote:
can hawking radiation be explained without virtual particles?
The main advantage of virtual particles is in providing for simplified explanations.
- Thu Jun 16, 2011 9:04 pm
- Forum: The Library: Information Desk and Educational Resources
- Topic: Hawking radiation evidence
- Replies: 31
- Views: 2565
Re: Hawking radiation evidence
The article first gives a little background on Hawking radiation. Then says that a team of researchers claims to have found another way to separate particle/anti-particle pairs without using black holes (because we cannot create ones to experiment with this). However their experiment is only a clai...
- Wed Jun 15, 2011 9:35 pm
- Forum: The Library: Information Desk and Educational Resources
- Topic: Hawking radiation evidence
- Replies: 31
- Views: 2565
Re: Hawking radiation evidence
what does the article talk about?neufer wrote:1) probably notoutlaw wrote:
is this evidence of hawking radiation?
also is there any other evidence for it?
http://blogs.discovermagazine.com/80bea ... radiation/
2) no
- Wed Jun 15, 2011 8:42 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Hawking radiation evidence
- Replies: 31
- Views: 2565
Hawking radiation evidence
is this evidence of hawking radiation?also is there any other evidence for it? http://blogs.discovermagazine.com/80bea ... radiation/
- Wed Jun 15, 2011 12:36 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Virtual particles
- Replies: 17
- Views: 3198
Re: Virtual particles
you also said they travel from future to present? are there experts who think that virtual particles don't exist?and also hawking radiation deal with virtual particles but has never been observed.
- Tue Jun 14, 2011 11:29 pm
- Forum: The Library: Information Desk and Educational Resources
- Topic: Virtual particles
- Replies: 17
- Views: 3198
Re: Virtual particles
yes what?Chris Peterson wrote:Previously answered. Yes.outlaw wrote:is there evidence for virtual particles? i also read of a physics professor named arnold neumier who says that virtual paticles dont exist.
- Sun Jun 12, 2011 7:05 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Virtual particles
- Replies: 17
- Views: 3198
Re: Virtual particles
i also read that there are experts who think they are mathematical and are not real? There are people who think that about "ordinary" particles like electrons and photons, as well- and not unreasonably. In the end, we don't really know what the "real" nature of most things is li...
- Sun Jun 12, 2011 6:30 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Virtual particles
- Replies: 17
- Views: 3198
Re: Virtual particles
so they do some sort of sci fi stuff without information? I wouldn't put it that way. It's just the way the math that describes things works out. Nobody said that everything in the Universe needs to be obvious or intuitive. Indeed, very little is. i also read that there are experts who think they a...
- Sat Jun 11, 2011 6:17 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Virtual particles
- Replies: 17
- Views: 3198
Re: Virtual particles
so they do some sort of sci fi stuff without information?Chris Peterson wrote:They travel backwards in time in a manner that doesn't carry information from the future.outlaw wrote:so virtual particles are not traveling backwards in time? or are they traveling backwards in time without information?
- Sat Jun 11, 2011 6:16 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Virtual particles
- Replies: 17
- Views: 3198
Re: Virtual particles
i was also reading that some people dont think virtual particles dont exist.is this a view?
- Sat Jun 11, 2011 4:30 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Virtual particles
- Replies: 17
- Views: 3198
Re: Virtual particles
so virtual particles are not traveling backwards in time? or are they traveling backwards in time without information?
- Sat Jun 11, 2011 3:33 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Virtual particles
- Replies: 17
- Views: 3198
Re: Virtual particles
i thought nothing can travel backwards in time without violating causality?
- Sat Jun 11, 2011 1:06 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Virtual particles
- Replies: 17
- Views: 3198
Virtual particles
Do virtual particles time travel backwards in time the way tachyons do?
- Thu May 19, 2011 12:44 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Virtual particle question
- Replies: 12
- Views: 2751
Re: Virtual particle question
I know that when something travels faster than light it has to deal with time travel backwards in the past and causality,do these things such as shadows travel into the past?
- Wed May 18, 2011 9:56 pm
- Forum: The Library: Information Desk and Educational Resources
- Topic: Virtual particle question
- Replies: 12
- Views: 2751
Re: Virtual particle question
I also read that a non thing can travel faster than light such as a shadow?
- Wed May 18, 2011 4:19 am
- Forum: The Library: Information Desk and Educational Resources
- Topic: Virtual particle question
- Replies: 12
- Views: 2751
Re: Virtual particle question
Hello,Im doing research on virtual particles and was wondering if their are different views on virtual particles, Are they real or exist or are they not real? Quantum electrodynamics is our most accurate verified physical theory. Quantum electrodynamics is based upon the assumption of the temporary...