Quantum Theory

Can quantum waves be used as a means to el communicato

What interests me here is whether there really is a possibility that the Neutrino is really one of Einstein's blunders. (as opposed to say, Weinberg's or Dirac's).

just for a bit of fun, I tried to consider what a "Flux Capacitor" might entail, then I came up with a more basic question. I considered the "Flux" part to be of the Magnetic sort (as opposed to Solder, LOL). I don`t understand how magnets "Work" exactly, but I know that you can magnetise an object like an iron nail quite easily using another magnet. But... Does doing that take anything away from the original magnet at all? Or could you magnetise bags full of them "forever" so to speak? sort of a way to Store magnetisim (like a capacitor).

Between a wavelength of 450nm and 451nm, there are theoretically *infinite* number of wavelengths. But, those wavelengths need to be produced by something, and if that something can only produce quantized wavelengths, then there isn't *infinite* number of wavelengths between 450nm and 451nm. For example, In case of blackbody radiation, I think it will be impossible to have the ability to produce an infinite number of wavelengnths, because there isn't an infinite number of electronic excitation and de-excitation configutrations (even if you take into consideration all the atoms and molecules there are), right ?. But, what about other ways to produce electromag…

Would an object made of antimatter look exactly like its matter counterpart and just have a different electric charge, or would it appear different and have different properties?

I've always wondered how light can be a wave and a particle simultaneously. I asked my uncle, who knows a lot about physics, and he couldn't answer my question directly. He said it is sometimes useful to show light as a particle and other times it is more convenient to represent light as a wave, depending on the topic and what one is trying to prove. However, this does not answer my question.

The spectrum of electromagnetic radiation is devided into (in order of elevating frequency): Radio, Micro-wave, Infra-Red, Visible, Ultra-Violet, X rays, Gama rays. Now, if you take a remote control, which operates by emitting Infra-red radiation, and block with your palm the radiation's direction to the TV, then the radiation would not be able to pass through your palm, and reach the TV. Now, in the same way, visible light also can't penetrate much into anything (still doen't carry enough energy). But, if you jump to X rays, and then to gamma rays, the penetration factor jumps to a high level, because their photons carry a lot of energy. Until now everything …

I have a quick question. If I sent a photon through a fiber-optic cable from point A and measured the polarization of the photon at point B , and then measured it again at point C, would the results between B and C be the same? A -----------B-----------C Thanks.

All the other subatomic particles that aren't protons, neutrons, or electrons -- like hadrons or bosons -- do they have a purpose? As far as I know most are short lived and decay into other more stable particles.

National Geographic has just published an article about fusion reactors. and it states that at about 100 million degrees Centigrade a gaseous state of plama forms in and around the hydrogen. can some one explain the process and why that happens. and what is cold plasma, is it related to cold fusion?

I understand basic science. I have ask this science question twice to no avail. This is not a JOKE! Physicists state our universe and everything in it including our planet and ourselves are made out of matter/energy. Theredore we humans are solid biological matter/energy. if that is the case then, Question one, how does the energy that forms a tree, sky,or person know how to do that? Or Does matter=energy have a intelligence to do that? Maybe you do not understand the question? It is a secular science question right? pljames

Since Martin is advertising conferences on his favourite topics, I thought I would do the same. Next week is the international conference on supersymmetry, SUSY 2005. Unfortunately there are no public talks and no video conferencing (unlike the flash string theorists) but slides of talks should become available after they are given.

Does anyone know if neutrons are actually made up of a proton and an electron fused together?

consider an electrical oscilator at 30KHz, there will be a transmition (carrier wave) broadcast. Photons will leave the antenna or coil as this electrical charge oscilates, basicly a Radio transmition. now consider we lower the rate of this oscilation gradualy, at what point does it cease to transmit photons? DOES it cease to transmit them? we lower this frequency to just over 1KHz (middle C on a piano) it`s still an electrical signal being switched through a coil, does it still transmit but just on a REALLY REALLY long wavelength? now we lower this freq further to say 50Hz, our coil still has this electrical signal passing through it, does it still transmit?…

i once heard about a quantum coral, and something like, it was made up of 48 iron atoms,,,,,, i think....... well, im sure of what i just said, but other than that, i dont know anything about it,.. does anyone know anything? more info. would be nice? there was also a picture of it, it looked sooo cool, hard to describe though, like a mix between the surface of a liquid, when something is dropped into it and a coral! [so descriptive] and google search is useless, it comes up with loads of medical stuff, thats not what i saw! HELP..... what is this mystery thing....

Reading through something (I'm fairly certain it was New Scientist magazine) I saw a reference to something called the Higgs Boson, there was an implication that it was nicknemed the "God Particle"... What's that all about? What exactly is the Higgs Boson? I've never heard of it before.

Experts... feel free to be completly... free in expressing your disapointment in me for asking this question... But there's something I don't understand... The cat is potentially alive and dead at the same time until observed by an outside observer. What exactly does this prove? All it seems to prove to me is that Man is exerting his superiority over the universe, and that the cat is not dead until a Man observes it to be true. I mean, the cat is either dead or alive. Just because no one knows, only makes it unknown. Or is that the point.

http://arxiv.org/hep-th/0507171 Information Loss in Black Holes S. W. Hawking "The question of whether information is lost in black holes is investigated using Euclidean path integrals. The formation and evaporation of black holes is regarded as a scattering problem with all measurements being made at infinity. This seems to be well formulated only in asymptotically AdS spacetimes. The path integral over metrics with trivial topology is unitary and information preserving. On the other hand, the path integral over metrics with non-trivial topologies leads to correlation functions that decay to zero. Thus at late times only the unitary information preserving path inte…

This seems like a fun question to answer: You have a wave function (a function of time or position). This represents in a 'one step removed' fashion the probability of a particle's position being someplace or in some state. You get the actual probability by squaring the instantaneous amplitude of the wave at a given time or place. This (always positive) number which is less than or equal to 'one' represents the probability of the particle being found at a certain location and/or time. i.e., .5 means a 50% chance of the particle being found there. Notice that the Wave Function isn't directly describing the photons travelling through space: Instead the …

I found this on another board I am a member of. I was curious if what this guys is saying correct. ( He has been known to spout off from time to time)

I was thinking about how they say the quantum theory of the atom saved atomism from collapse by suggesting a way electrons can stay in orbit around their nucleus without falling into it. If energy can only come in discrete amounts, then electrons can only exist in discrete energy levels in their orbits around nuclei. But, in my understanding, this doesn't resolve the problem of electrons falling into the nucleus unless it means that the lowest energy level must still contain some energy. If you can have an energy level with 0 energy, that level would equate with the electron falling into the nucleus. Therefore, particles (or at least electrons) cannot have 0 energy. Is th…

String 05 conference July 11-16 at Toronto here are the scheduled speakers and the topics of their talks http://www.fields.utoronto.ca/programs/scientific/04-05/string-theory/strings2005/speakers.html Audio and slides for some of the talks are beginning to be available for download at this page: http://www.fields.utoronto.ca/audio/05-06/#strings

I need to find the equation describing ripple mechanics in three dimensions for a question along the lines of "If Jon throws a rock weighing 100 kilograms into a lake, what would the ripple effects be?" I have googled it several times with many different parameters but I couldn't find anything, so I came here...

I made an error in setting up the poll in this one. sorry to trouble you. this thread should be deleted

Earlier we had two chances to predict about string research, and stash the predictions away to check later and see who got closest. One worked out this way: the question was "By the gauge described here, where do you think string research will be in two years?" And the guesses we got were these: Guesser M/B index for July 2007 Severian 620 dave 550 DQW 540 me 500 J.C. MacSwell 400 The index we are guessing here is the keyword M-theory/brane papers published July 2006 through June 2007, a number which (if past years are any guide) will be easy to get from the Harvard data b…