Modern and Theoretical Physics

I read in the book Concepts of Particle Physics voL.1 Kurt Gottfried and Wictor Weisskopf http://www.amazon.com/Concepts-Particle-Physics-I/dp/0195043731/ref=si3_rdr_bb_product P.167 about some intersting approach for problem of Gravity.It was about Gravity as a collective effect of Bose and Fermi fields. June 16 1998 i send mail to Kurt Gootfried for asking about supporter this approach.Dr.Gotfried call Andrei Sakharov's name.Why i like Sakharov idea? Because it very close to Metasymmetry: Fermions---antysymmetric wave function Bosons--symmetric wave function Fermions 10 или 01 Bosons 11 Metasymmetry 1011 или 1101 Ratio of unities vs zero is 3:1 …

I came across this article about Burkhard Heim and his theories. He seems like quite the interesting old chap, why have I not heard anything about him before? Have I been under a rock, suffering from amnesia? Or is his theories looked at as being completely ridiculous, because as far as I can tell from this article someone should be paying more attention to this guy's theories and finding some practical uses for them. Anti-gravity can't be totally useless, can it? Thoughts from this forum's experts? Or anyone?

It was recently realized that Periodic Law follows rules of the tetrahedral sphere packing and points to double tetrahedron nucleus: Minor changes to the good old Periodic Table led to realization that spdf blocks of the Periodic table are slices of the tetrahedron. Madelung Rule (n+l), that is a big part of the periodic law, is explained on the basis of mathematical concept called sphere packing. Nuclear magic numbers 2, 8, 20, 28, 50, 82 and 126 are products of tetrahedral sphere packing also, suggesting much closer connection of nucleus with electronic shells. You can check it out at http://www.perfectperiodictable.com

According to contemporary ideas the spin of elementary particle is a certain mysterious inner moment of impulse for which it is impossible a somewhat real physical picture to create. The absence of spin visual picture, in opinion of a number of authors leaves the regrettable gap in quantum mechanics interpretation. On the other hand, there are highly developed geometrical disciplines which are difficult to apply to specific physical theories owing to the fact that it is not always possible to point out the objects to which the geometrical notions could be corresponded.We point out to one interesting analogy which, in our view testifies to the geometrical interpretation o…

I have finally solved the exact result of the Fourier transform of the wave packet I study in my paper on photon localization (cache listed below). I represent a Gaussian form in three dimensions of falloff over "many frequency cycles" by starting with vector potential in<y,z>: [math]A_y= A_0 cos (k_0 X) e^{-a^2(X^2+y^2+z^2)} [/math] where X=x-ct, with the assumption that [math]k_0>>a[/math]. This means the falloff of envelope is of many cycles. The dimensionless constant a/k is presumed to be the fine structure constant. The difficult part of the Fourier transform is the integration over x, since it contained in both terms (X is the co-moving center…

This is one of a few scenario's I was contemplating today while on a trip. Suppose you have a square sheet of rubber. This rubber has zero internal friction and perfect elasticity. Now, take two sides and join them, forming a cylinder. Take one end and start rolling it up so that you are turning it inside-out. When you have done a bit, give it a final yank and let go. This is done in a perfect vacuum with no external interference. What will happen? As I see it, it should keep on rolling until it is completely inside-out. But then I think it should continue (as a result of momentum) and keep turning itself inside-out perpetually. The initial energy applied can…

who can help me with my homework in calculation of the mean potencial of non harmonic oscillations with hybrid monte carlo? I am looking for ideas or guided chat. what about integral and exponential autocorrelated time? $$P(x_1,x_2,...,x_N) \sim e^{-\beta V(x_1,x_2,...,x_N)}$$ $$V(x_1,x_2,...,x_N)=\sum^N_{i=1}{1 \over 2}\lbrace(x_{i+1}-x_i)^2+v(x_i)+v(x_{i+1})\rbrace$$ $$v(x)={x^2 \over 2}+{\lambda \over 4}(x^2-\delta)^2 , x \in {\bf R}$$

Can atom annihilate by 58 nuclear megatons to nothing?

i m doing a presentation on "SIMPLE HARMONIC MOTION and APPLICATION". BAsically , i have done some research on website and books, but the application are to difficult to understand and its not common in daily life. My audience would be a level students. I will include the spring and pendulum, but any other suggestion for me on the topic? and i would like to insert some interesting facts. I will appreciate much on your ideas and suggestions.

this is more philosophy then physics but its roots are in phisics and would not be understood by philosophers (if there are any true philosophers left) all organisms are fundamentally blind we can only see a certain spectrum of light we can only hear a certain spectrum of sound we can only feel objects that are large enough to be precevived in this way we can no longer say that everything is fine(awesome) because even if we are only talking about a 2 foot perimeter, we don't actually know whats going on in that perimeter thus i suggest that if the scientific community wishes to remane accurate, they should adopt a new phrase everything is fine(…

einstien once theorized that if you had a powerful enough telescope you could see around the curvature of space and time to see yourself now maybe im taking his word too literally but i dont think that he would have used this comparison without taking into account the physical limitations of a telescope now since a telescopes sight can only see in the straight line that it is pointed in this implies that the curvature of space and time itself would curve this normally straight line the theory that you would actually see your self implies that the curved line would have come all the way around making it a loop taking the statement in this context it implie…

what will happen to matter if it is caught by black hole?

will I'll be able to see the corresponding visible light if I generate a electromagnetic wave whose frquency lies within the VISIBLE SPECTRUM or not

Einstein's "Photon in a Box " is fatally flawed. There can be no recoil by the box when a photon is emitted. The emitting electron simply drops to a lower energy level to lose (-e = -h) where (h) is Planck's Constant. The photon has an energy (e = h) and so energy is conserved at the atomic level with none left over for box momemtum change. Then when the photon collides with the box'es wall, only one of two things can happen: First, it's reflected but there is no energy left for transfer to the box because this would require the reflected photon to have an energy less than (h), the indivisible minimum Planck value. Second, if the photon is absorbed, the a…

Is it supposed to be in empty space or is it in clumps everywhere including my room? Can anything be said about this stuff other then it generates gravity? For instance, how much could be clumped together into how small a space and would a light matter object be able to pass through it? When I caught a few minutes of a show on TV they were talking about how dark matter is just kinda stitched into the universe. If that's so, then it should only move as the universe expands. Dark matter is supposed to be the reason the galaxies are being held together in the first place so shouldn't a galaxy's location be dictated on on the concentration of dark matter? If galaxies coll…

what is your weight if you have the speed of 100 km/sec?

First a quote from the NIST page on recent Bose-Einstein Condensate experiments: ” Working at JILA, physicist Carl Wieman's [pronounced wy-man] team has explored tuning the self-interaction of atoms in a BEC. By making a BEC in a particular isotope of rubidium, rubidium-85, and then changing the magnetic field in which the BEC is sitting, the team is able to adjust the wavefunction's self-interaction between repulsion and attraction. If the self-interaction is repulsive, all the parts of the wavefunction push each other away. If it is attractive, they all pull towards each other, like gravity. Achieving a pure BEC in rubidium-85 required the cloud of atoms to be coole…

It struck me that if M-Theory is correct about why the force of gravity is so weak compared to the other forces; namely because gravitons are able to escape our universe and phase into the multiverse, thereby diluting the strength of gravity, then the common claim that there could be an infinite number of parallel universes is actually not correct. If there were an infinite number of parallel universes then the strength of gravity would be zero, or rather "Fgravity / infinity" which is considered to be 0. Since anyone who has done dilutions in chemistry class knows that the larger the number after the colon (eg. a 1:10 dilution) the more diluted the solution is, the sam…

Hello, When matter and antimater collide there is a total release of energy. 1) What is this energy? 2) what affect would it have on the second law and entropy. 3) would it continue to exist in the antimatter or matter realm (realm used for lack of a better word) E,g where do the fundamental particle go after the total turning of matter into energy? Some speculate with an oxymoron in that it becomes anti-energy Thank you Alan

I just thought of something the other day. It is common knowledge that the speed of the electromagnetic force (AKA the speed of light) is "C". And experiments with particle accelerators have shown that nothing can travel faster than "C". It occured to me that maybe the reason that no particle accelerator has been able to accelerate particles faster than the speed of light is because the accelerators use electromagnetic fields to accelerate the particles, in other words it would be impossible to accelerate a particle faster than light because it would then be moving faster than the magnetic fields which are accelerating it. In other words if a particle were travelling …

http://www.sciencedaily.com/releases/2008/06/080630173921.htm I don't even want to try to regurgitate this, but ScienceDaily is trumpeting claims of millimeter-sized atoms through some crazy laser excitation thing. In this state the electrons start to have classical instead of quantum properties and all start orbiting the electron like a planet. All I gotta say is... fo real?

Since this probably requires knowledge from someone who knows more about radiation I decided to post this here, feel free to move this to a more suitable category. Anyway, I've been thinking about doing something with radioluminescence. The question is whether one can do something like this with just zinc sulfide and (reasonably "hot") powdered uranium ore or do you need something uncomfortably active like radium in those infamous radium paint clocks? Of course, a reasonably safe choice would be tritium encased in a phosphor-coated capsule but I can't see myself getting tritium any time soon (except by buying tritium keychains which would kinda defeat the point of wha…

Length and breadth are generally considered to be continuous functions. If we could make the regular polygon series, triangle, square, pentagon (infinite) a finite series, would length and breadth measurements become discontinuous?

Unparticles are something I don't know much about. I was hoping some of the people on here are more familiar than I am with them. As such I wanted to start this thread. The purpose is to discuss unparticles and point to useful papers on the subject. If you are going to join in here, then I expect you to know a little about QFT and the standard model. So, what do I know? Well unparticles are a strongly coupled scale-invariant sector which interacts weakly with the standard model. The propagators are non-local and the spectrum of the field operators is continuous and so does not describe particles. Questions. a) What Lagrangians have been proposed and are…

I don't like Hi-V so won't go there. I recall that LEDs will work in reverse. On that premise I am thinking to build a small, short and narrow plastic tank for a cloud chamber illuminate it with a few LEDs and cut off the ends of enough other LEDs to span the width of the tank and likewise dimension at 90 degrees. It seems to me it would help if the LED frequency of those in the receiving matrix were such that the muon track would light up better (lighter) than the surrounding medium with the emitters. Which colors (blue (uv), green, yellow,orange, red (not ir) ) would best be used? My thinking is green emitters and a yellow matrix. I need some input. I know the …