Modern and Theoretical Physics

Read this: http://www.simulation-argument.com/matrix.html Basically it is telling us that: "(1) The chances that a species at our current level of development can avoid going extinct before becoming technologically mature is negligibly small "(2) Almost no technologically mature civilisations are interested in running computer simulations of minds like ours" -or- "(3) You are almost certainly in a simulation." With simulated minds, only the input and output of the mind is really important and the physics of the universe takes a back seat, but a simulated universe would obviously put physics first. Anyway, in a simulated universe…

I'm not entirely sure this post should be on this specific forum, so if not, please move it to where it SHOULD be. I'm just not 100% familiar with the entire subject. I just finished watching a startrek episode (yes, I'm a geek, we already know that, deal with it) and I started thinking. The idea of a "folding" universe is something we hear about a lot in Startrek episodes but not ONLY in startrek. It's a theory I've heard a lot that if you take two points in the universe and would like to travel faster - you need to actually "shorten" your journey and do it by "FOLDING" space. It's explained visually by drawing two dots on a piece of paper, and then folding it. …

I dont know whether this belongs in here but this has been weighing on my thoughts recently. Imagine a sheet of ice only a millimeter thick. If i throw a rock at this sheet of ice, obviously the ice will shatter. But how does it shatter on the atomic level? If we could see individual molecules, then what happens at the breaking point? What im asking, does the energy from the rock transfer into the chemical bonds releasing them from one another thus allowing the ice to break apart? Or do the molecules remain intact, being moved by the force of the rock?

Hi everybody. I have always been intrigued by the concept of teleportation and with the recent advances in quantum teleportation at the University of Innsbruck, the results are encouraging. However, it should be noted that this form of teleportation doesn't allow physicists to teleport the photon itself--only its properties to another, remote photon. Here is the site: http://www.aip.org/physnews/graphics/html/teleport.htm I'm an aspiring science fiction writer and what I want to do in my story is achieve teleportation by actually teleporting the people themselves, not their properties. So, I began thinking about how I was going to do that. I thought abou…

Could someone clarify and define these for me? Critical mass is when you have enough of a substance to start a chain reaction right? How does an element become radioactive? Can every element become radioactive? Is uranium-238 radioactive? How much uranium is used in chemotherapy? If plutonium was found in the ground, even a minute amount, would you receive radiation poisoning? Thanks.

here is wave equation: I know that any function of x-ct variable will solve the above equation, where c is wave velocity. Below is an example of wave written as wave packet with Ai - Airy function. the first part of equation describes propagation of wave' envelope with group velocity and second part, Airy function, describes propagation of wave itself with phase velocity. I noticed that both parts can't be written as part1(x-Vg*t) and part2(x-Vph*t) .... so are these parts still represent traveling waves? If so then is it true that any function f(x,t) with x appearing only once in power 1, will describe travelling wave? thanks

Whether somebody knows what equally <int(F*Fcomp)dx>. Where F(x,t) is complex function: F=F1+i*F2, Fcomp=F*=F1-i*F2. F satisfies to the next Shredinger like linereal stochastic partial differential equation: i*h*Ft=-a*(Fxx-2*n*Fx/x+(n+1)*F/x/x)+U*F int - sing of integral by dx, Ft - first time derivative, Ftt - second time derivative, Fx - first dpase derivative, Fxx - second spase derivative, i - imaginary unity, < > - sign of averaging on casual fluctuations U, U - casual space - time, delta - correlated a white noise, a, h, n – are consts. ( If it matters - there are interesting to me the cases n=1 and n=0,5)

Does anyone know where i can find anything about the FCPs especially the quantity of each 4 in an atom or gravitational system. Also does anyone know of any large scale experiments to detect lots of them

What kind of advanced maths would I need to understand some advanced physics? I know calculus inlcuding triple integral calc, differential equations, and statistics.

I know Snell's Law applies to light, but does it apply to other forms of electromagnetic radiation as well? ie. the behaviour of the waves through different mediums/materials?

I just had a wild hair thought about the instability of all the elements above Bismuth. If an external energy was used to certain specs do you think it is feasable that radioactive elements could be stabilized by it so they didn't decay? Just aman

Does any one have any pictures to illustrate the differences between alpha waves, delta waves and low amplitude beta waves? Thanks

>?

how long does a magnet remain magnetic when a load is present as opposed to when there is no load present?

I have the important occasion to talk about gravitation and inertia. I managed to find the formula for gravitational electron mass in units of angular acceleration This formula expresses the current state of real world. The Earth is rotate around own axis and around of the Sun. The solar system is rotate around of center of our Galaxy. Our Galaxy is rotate around of center of some other Supergalaxy, etc. Some of these systems can be rotating with accelerating; others can be rotating with slowing. The total of rotary accelerations influences the value of gravitation and mass in each point of space and time. Besides, all these systems vibrate – from cosmic ob…

Where I can find precisely calculated values of oxygen quadrupole moment & its derivatives (or "quadrupole polarizability")?

Does anyone know why certain isotopes are put in the periodic table? Do they put the most stable ones or the ones with least ammount of neutrans (unstable). Another question: What forms of carbon are radioactive? I know that Carbon 14, Carbon 11, and carbon 32 are radioactive, which others are, or all isotopes are radioactive.

Hi, could some one please give me a detailed and complex description of what infrasound is? P.S. Please when answering could you make your reply as complex as possible so i get all the information available also could you please state you name and the degrees you hold for future reference

I saw the Nova on "The Elegant Universe" ( http://www.pbs.org/wgbh/nova/elegant/program.html )and I got a couple questions on Branes. They say collisions between branes may have caused the big bang, 1) but how did they cause the big bang, 2) did the branes bounce off of each other or could they have passed through each other 3) and what would happen with continuous contact between branes? Also, it is very chaotic at the quantum level. Could this be the whole cause of the existance of everything? I mean, could everything we see be a biproduct of waves caused by the brane collisions and small pieces of matter/energy only be ripples? That would make sense to me…

Before to begin new theme, I would like to convey the pleasant news. Recently young Russian physicist Sergey Polyschuk won the gold medal and premium of Russian Academy of Sciences for new theoretical developments in physics of nanoworld. The scientific work by Sergey is bounded with researching of ring energy elements of nanoworld. For the extension of area of researches, the scientific chief of Sergey, Dr. A.Kushelev kindly has offered to include my themes from Science Forums and Physics Forums into the encyclopedia of nanoworld, as section of Polytronic Physics. I thank all participants of forums, who shared in arguing my themes and helped in solution of my problems…

The page " Dissociation of hydrogen " became very big (545Kb) and my computer handles the file much slowly. Therefore I offer to prolong talk here. aman: I can see how polytrons are symmetric relative to single atoms or molecules but in an iron bar where electrons can travel influenced by a magnetic field and build voltage potentials, how does this effect the symmetry of the polytrons? Your question, aman, concerns simultaneously several intricate problems. At first, it is the problem on, how polytrons create electric field. The problem of the physical nature of charge and electric field is considered in forums permanently, but the clearness has not appeared ti…

Exists plenty of types of infinity in mathematician. We consider two of them. 1) Illusory infinity. This infinity of the expansion. This process of the endless multiplying of the zero. If a zero is absolute that this process will not change nothing. The Zero will be remain the Zero. For this reason interesting idea was invented. An absolute zero, in unknown effect, has ceased to be such in the some moment. Hereinafter this process had been applied to 3D space. But then it is necessary to acknowledge that it was received 3D number (??? !!!!) from absolute zero, for begining. Though such number is not possible to present, imagination of people has a…

Okay, me being me, I've forgotten the major amount of physics I learnt, in particular, specific heat capacity. so, it would be agreat help if someone could give me some means of working this out. Calculate the thermal energy required to convert 5 kg of ice at 0 degrees celsius to steam at 100 degrees celsius. (specific heat capacity © of ice = C of steam = 2100 J\Kg\K, specific heat capacity © of water = 4200 J\Kg\K, Latent heat of vapourisation = 2.3 X 10^6 J\Kg, Latent heat of fusion = 3.3 X 10^5 J\Kg thanks...

In the previous theme I spoke, that tangential energy of the dipole of speed is proportional to its square. Accordingly, tangential energy of radial resonance oscillations of the energy ring is proportional to the total square of all dipoles of speed in the ring. See files "dipole of speed.pdf" (227Kb) or "dipole of speed.zip" (182Kb) in thread "New interpretation of gravitational constant". At mathematical simulation of atomic ring oscillators it was revealed, that the radiation of the oscillator consists of tangential energy practically on 100 %. The matching of the calculated outcomes with experimental data in spectrums of ionized atoms of hydrogen, helium, lithium, …

Here I offer mathematical model of gravitation on the basis of the following experimental facts: 1) The part of the universe, observed by us, almost completely consists of hydrogen and helium (H~80%, He~20%, to the share of remaining elements of Mendeleyev's Table fall approximately 1% of mass of the universe). 2) Dielectric (and magnetic) constant of dense bodies (solids, liquids and cold gases) differs from the dielectric constant of vacuum. 3) The relict radiation of the universe (Cosmic Background Radiation) corresponds to energy jump between two main quantum numbers n=117 and n=118 in the Balmer-Rydberg's formula for the spectrum of hydrogen. 4) Photons are sprea…