Modern and Theoretical Physics

On all diagrams I have seen the highest frequency ( or shortest wave length ) seem to be in gamma rays. Are any frequencies higher than gamma or cosmic rays known or is there a theoretical limit ? Intuition would indicate a limit to wave LENGTH as energy content decreases as wave length increases , becoming zero at infinite wave length .

today in science, i was looking through my book and saw that there are six different types of quarks that make up protons and neutrons. so i cam home and have done a lot of googleing on this and i found some really awesome info. protons and neutrons can switch between being solid and being waves(as in like sound waves). does this mean that the quarks are also switching? and if so, what does that make the quarks? what type of matter is it?

Natural magnets exert a force which is capable of doing work . It takes energy to to do work . In magnets what is the source of this energy when it is not electromagnetically induced ? I know the theories of magnetism but nowhere can I find what the energy source is --- is it nuclear ( ie by conversion of mass ) at some level ?

a super-conductor is a wire [electronics] which has 0-ohm resistance. right here is what happened [includes background info] there is a problem somewhere, but i dont know what it is.... can someone please point it out!?! i thought superconductors were possible, they occured when a wire was at absolute zero or very high [dont know how high!]... according to my friends science teacher, with enough current and/or voltage, ALL wires will melt, due to the resistance... i said, "no" not in superconductors! whos wrong.?.?.?

Cartoon Laws: 1. Any body suspended in space will remain in space until made aware of its situation. Daffy Duck steps off a cliff, expecting further pastureland. He loiters in midair, soliloquizing flippantly, until he chances to look down. At this point, the familiar principle of 9.8 metres per second per second takes over. 2. Any body in motion will tend to remain in motion until solid matter intervenes suddenly. Whether shot from a cannon or in hot pursuit on foot, cartoon characters are so absolute in their momentum that only a telephone pole or an outsize boulder retards their forward motion absolutely. Sir Isaac Newton called this sudden termination of motion…

David Gross, David Politzer and Frank Wilczek win the Nobel Prize in Physics for "the discovery of asymptotic freedom in the theory of the strong interaction". Asymptotic Freedom can be found here: http://en.wikipedia.org/wiki/Asymptotic_freedom Strong Interaction can be found here: http://en.wikipedia.org/wiki/Strong_interaction Essentially these are part of the attempt to discover a grand unified field theory.

Frank Wilczek, David Gross, David Politzer were awarded the N. prize in physics today for the discovery of asymptotic freedom in Quantum ChromoDynamics (QCD). what's the main idea of asymptotic freedom. Cosmologist and science-blogger Sean Carroll gave a simple sketch of the essentials--- "...CD is the theory of the strong interactions, in which quarks possess a certain "color" (purely metaphorical, of course) and are bound together in protons and neutrons by massless particles called gluons. It's extremely similar to how protons and electrons possess a quantity called "charge" and are bound together in an atom by photons. But there is also a crucial difference -- yo…

The scientific method is the foundation of science, but yet now it seems to be placing limitations on the advancement of science. It used to be easy to apply the scientific method. You could easily observe and measure the neccesary interactions and matter you needed for your experment, but as time has progressed it has become harder and harder to do that. That coupled with hesenbergs uncertainty principle and the ever increasing need to observe smaller and smaller things has lead to a state where direct observation of matter and interactions has become in many cases impossible. We must therotically guess a prediction and then test itout and most of the time we must use…

My sense is that, at least temporarily, it is becoming less fashionable---particularly outside the US. There are younger rivals with better near term prospects for testing. I've noticed a tendency for people to get out of Stringy research and move into other fields. String papers have lost standing in the Spires citation index of what's currently hot in physics (astrophysics and condensed matter physics have pulled ahead.) The String/M theories-under-construction remain unfinished in the sense that they are incapable of making unequivocal predictions which would allow them to be tested---any theory which does not risk refutation by making testable predictions is vacuo…

Hallo to all i have a big problem, i am attempting to write a paper on chaotic vibrations in electromechanical systems, but i cant find a place to start. Its not suppose to be a research paper covering the basics and some examples...but i cant find any! I have been reading some of F.Moons books, but they only give an intro and very, very small outlines of some examples...most other texts dont even cover electromechanic systems at all!!! Does anyone have a good source, and idea...anything to get me started?!

The Nobel Prizes in physics are due to be announced Tuesday in about 5 days from now. there is stock trading at this address http://www.nobelpreisboerse.de/stocks.aspx?stc=1 it is a kind of betting where you can shift your bets up to the last day they have a stock market in the winners of the 6 different prizes, physics chemistry, medicine, literature, peace, economics. everybody who registers to play gets given $10,000 in play money you buy the stock of somebody you think might win the prize and if more people start thinking he might win, then his stock gets bid up and you can, if you want, sell at a higher prlce and buy some stock in an even smarter…

Picture a cube, now picture an explosion inside that cube, all six sides of that cube will represent each dimension of the initial explosion, up, down, left, right, foward, backward. I understand that up, down, foward, backward are the only relivant forces needed to form a 3rd dimension, however matter and energy explode in all six directions forming six dimensional lines through spacetime.

Year 2200. The grand unified theory is discovered all constants can be derived, all particles too everything is explained and verified experimentally. Would the scientists still study all the theoretical structures that have been devised anyways as pure math or to see how alternate universes could be devised ? This would have no consequence on physics, but are all those theories /string, symmetry etc) worth studying for themselves anyways (in their own right) ?

A singularity of infinate mass and density explodes creating spacetime and our known universe in what is widely known as the "big bang" theory. 15 billion years later scientists have deducted that the universe is expanding at an exponential rate and is showing no signs of slowing down (the expansion is actually speeding up). Many theorized that the universe would slow down in its expansion and eventually collapse into what is dubbed the "big crunch", but modern scientific data has proved the exact opposite, the universe is expanding faster every second and no real concrete answers as to why... Please express your ideas and share your opinions, anyone have a theory? Ex…

Has anyone ever thought of describing the universe as just a large set of numbers. For example a universe with 1 particle and 2 positions and 2 time intervals would be described as a table: Particle Time Position 0 1 0 0 2 1 This universe only lasts 2 time steps and has one particle. Extrapolating to a real universe with a about 1000 physical measurements and 200 decimal precision for each for 10 to the 500 particles etc. we could get (10 to the power of 1000) numbers; Or in rearranging the numbers a universe that is a number with (10 to the power …

Is it possible to CREATE a wormhole, even in theory in any way?

Is our perception of the world is limited by the types of tools we have available for measurement? For example, we have great tools for causing and measuring electromagnetic phenomena, and physics seems to describe an underlying world of electromagnetic phenomena. But is this worldview based on the fact that these tools are the ones available, or on the fact that the underlying nature of the universe is ONLY electromagnetic. I would be interested to know if there are any credible views in the scientific community which involve non-electromagnetic interpretations of natural phenomena. I realize that this question might be "not even wrong," but I think it is reasonable…

Hello! Just wondering...didn't think about that at all in the past... Why is actually a light cartridge case made from silver paper attracted both to a positively charged glass stick and to a negatively charged ebonite one?

http://www.scienceforums.net/forums/attachment.php?attachmentid=396&stc=1 This explains some of the ideas I've put forward before in more detail.

A recent article in new scienctist illuded to the fact that setting up irregular 'islands' of differing metallic materials was an efficient way of inhibiting the movement of phonons while not hindering the movement of electrons. Thus enabling a temperature gradient to be maintained in metals and produce substantial voltages from what was formerly labelled 'waste heat'. This is a major advancement in physics as it means many reactions from photovoltic to chemical reactions and even convential means of electricity generation will be able to yield higher net power outputs as a result of harnessing this effect to create electricity via heat output. Just thought I wou…

Everything I've found so far in my Internet search for the question "What does the universe look like from the perspective of a photon?" has led to the following answer: A photon experiences zero time and zero distance. Essentially, it exists for only an instant (from it's own perspective), no matter how far it travels (from an outside perspective). This seems to exactly coincide with what Special Relativity says about an object moving at such relativistic speeds. However, it has recently come to my attention in another thread (another thread ) that because a photon has no mass, the effects of Special Relativity do not apply: So it seems that it is not …

Can someone answer a few quetions for me? 1) What is the affect of alpha particles on a metal when they are stopped? Are they reflected? Where do they go? Do they steal some electrons and become helium? Thus ionising the metal? 2) what is the affect of beta particles on a metal? Are they incorporated into the electron cloud of a metal latice model? where to they go when they are stopped? Thanks

I came across a paper that was so strange I needed to share it with someone. this is a guy who is at MIT and who publishes in peerreviewed journals like Phys. Rev. series B. and Oxford U. Press is publishing his book this year, called Quantum Field Theory of many-body systems so you or I probably can not so easily dismiss him, if we wanted, but look at the title and abstract of this paper. http://arxiv.org/abs/hep-th/0109120 Origin of Light Xiao-Gang Wen 4 pages, Phys.Rev.Lett. 88 (2002) author's summary: "The existence of light (a massless U(1) gauge boson) is one of unresolved mysteries in nature. In this paper, we would like to propose that lig…

http://www.imperial.ac.uk/research/theory/about/isham60/schedule.htm Hawking, Rovelli, Ashtekar, Penrose, Loll, and others Monday 6th and Tuesday 7th September 11:30 K. Kuchar: Spacetime Covariance in Canonical Relativity. 2:30 J. Hartle: Arrows of Time and Generalized Quantum Theory 3:30 R. Penrose: What is Twistor-String Theory? 5:00 G. Gibbons: The First Law of Thermodynamics for Kerr-Anti-de-Sitter Black Holes in Arbitrary Dimensions 10:00 R. Loll: Emergence of a 4d World from Causal Path Integrals 11:30 S. Hawking: The Information Paradox for Black Holes 2:30 R. Sorkin: Is a Past Finite Order the Inner Basis of Spacetime? 3:30…

Hello, I have a simple question for you: What comes first, Energy or Force? Encrypted