Classical Physics

The purpose of a dielectric is to aid a capacitor in maximizing the amount of charge that it can store. However I am confused about whether the best material for a dielectric would be a polar or nonpolar? I had always thought that you wanted a vacuum or a near vaccuum between the two plates to minimize charges from flowing between the plates and thus maximizing charge storage on each plate. However it seems that the more polar a material the better the dielectric and thus the higher the capacitance. Would someone be able to clarify why a polar material is better?

Maxwell's are: dpt[muon*H>]=-curl[E>]; dpt[epsilon*D>]=curl[H>]-J>; div[epsilon*E>]=VD & div[muon*H>]=0. Further Inspection is being done upon the "exact-validity" of the equations that has been invented [collected and modified] by MAXWELL .... A program has been set by by my personell - as a consultant in Communications and Electronics and Owner of Nobel Prize [PQED] - to investigate the exact formula-set, especially after the announce of the explore of the 7th Quark and the connection done between Electromagnetics and Gravitics. Isn't there a factorial div[J>] in the equation of the curl [stroke] of the magnetic field flux density? A …

Are the forces of the Universe and the Laws of Physics subject to entrophy? If not why not?

I was wondering what voltage or current, if any, would be produced if the basic magnet through a copper coil experiment had the poles rotated 90 degress so north and south faced the top/bottom of the coil rather than the entry/exit points? The attached image has a baic illustration of this. Thanks

here is a representation of the carnot cycle in the pv diagram(y=p x=v)... we kno that entropy is defined as the measure of randomness of a system..... from the veiw point of kinetic theory the entropy change during an adiabatic process is zero since q = 0( bc or da)for an ideal gas......but during the process there is an increase in the randomness of the system i.e there is an increase in the volume of the system.. does this increase in volume account for any change in entropy for a real gas? if yes then how to measure it?... D U = (dU/dT v) dT + (dU/dv T) dV.....in case of a real gas can we write the change in entropy as ds = dU/dT?.... plz help...

We now have 3D TV's that don't require 3D glasses. Is it possible to make TV's with 3D sound that only comes from it's own speakers (that is, it doesn't require external speakers) so that different sounds will seem to come from different locations in the 3D volume?

Hey guys, hopefully this is in the correct section. I am trying to anylise this trick to see if it is actually humanly possible. I need to know the internal pressure on of these glass bottles and handle, and also the maximum pressure a human can generate with their mouth / lungs. Thankyou in advance gents.

Every one knows well electric current makes magnetic field. Then, why does electric current make magnetic field?

Hi I'm new here. I have been watching youtube videos about people making free energy with some kind of magical motorts that never stop spinning.I've concluded that all of them are fake,since they only show their machines but don't actualy explain how it works... BUT What I don't uderstand is... If the earth is spinning,and earth's core is spinning,how is it not possible to trap that rotation energy???

I'm sure this is a rarely spoken about subject here on the forums, but is anyone familiar with hydrostatic fluid theory, essentially the theory of hydraulics? An electrical engineer will understand the principles, as hydraulics are similar to electrics. There is a myth in the hydraulic business that "flow makes it go." The idea of this fallacy is that flow (i.e., gallons per minute, or litres per minute) is what makes things move, and pressure is only created when there is resistance to this flow. I have a question: Is there any way to create motion other than application of force?

Symmetry breaking means order emerging from a state where everything is the same in all directions. That seems to be the opposite of what most would consider symmetry. Something symmetrical is not a blur, in the common understanding. Turbulence, for example, is considered perfectly symmetrical because there is no order anywhere, and the appearance of a vortex (which is axisymmetric) is called symmetry breaking. This opposition of pedantic rigor to common understanding may be what is standing in the way of progress in extracting power from turbulence. Since the steam age, only a fraction (set by the Carnot efficiency) of the energy is considered usable for power g…

Hey all, I've been taught that time is a rate of change. Well, change could have many meanings. So my question is very specific: What is "change" refering to? change in life, change in form, change in characteristic? What is change? I am kind of looking at the definition in a weird way. Everything is the universe seems to be dying. So could the meaning of "change" refer to the "death" of matter? For example, time = rate of "death" of matter? I hope I put my thought clearly. Thanks,

Hi guys! I would like to start this discussion by saying I am brand new to this site, so if you could, please go a little easy on me. I am also only 17 years old, so I can say I do not have much experience in the study of physics, but I do love it very much and am very curious and eager to learn more. First, let me share with you something I've learned and have questioned. We all know of the existence of gravity and that it is a force that causes two particles to pull towards each other. But if gravity is a force, then, according to the Standard Model, it must also have its own accompanying particle, which, in question, is called the graviton. These are tiny, mass…

So I had a thought about the following device: It is a shell of circular shape (A) with a small opening (B) and a small receptor C. The shell is rotating clockwise from Time 1 to Time 2. For the sake of the argument, the shell is made of steel and the receptor is a stone-receptor. For simplicity the stones follow always a straight path. The shell "understands" a stone only when it hits the receptor. If a stone enters the shell but does not hit the receptor, nothing happens. When a stone hits the receptor, bingo, a bell rings. So I am at point D and I have to throw a stone into the opening B so that it hits the receptor C. It is evident that the velocity…

Does the existence of Energy both within and without the Universe violate causality? Energy cannot be created nor destroyed. It can only be transferred hence it represents an "effect" without a cause does it not?

I've been puzzled by this question lately. How do you define Mass x Position? The units would of course be kg.m , but how do you define that? What is method for defining new units of measure? How did we decide that N.m = Joule?

A sphere of iron is stuck to the end of a ruber band at a point A. On the other end of the ruber band it is fixed to a point O that will act as the center of rotation. Questions: 1- If the sphere is pushed so that it achieves a speed V, with no friction and no outside forces, is it possible to achieve equilibrium, so that the length of the (stretched) ruber band and the magnitude of V both remain constant? 3- Under sufficient magnitudes and proportions, would the sphere experience shearing? Specifically, would the diameter between the point attached to the ruber band A and the opposite point B be greater than the diameter between the leading point C and the trail…

Hello everyone. Im 14 years old from Israel and I had a test about the Newton's 3 Laws of Motion. I have one question for you. Ruth is pushing a stroller. Which sentence exlplains the situation? A. The force that Ruth is pushing the stroller is bigger than the force that used by the stroller. B. The 2 are equal. I think that B is the right answer because of the third law of Newton. Please help me, it worth 3% of the grade. Thanks a lot, Etgar.

Here's an off-the-wall physics question. 1 - If the Wil E. Coyote put an Acme rocket on his car, how many pounds of thrust it would take to start seeing better miles per gallon? 2 - Or, would 50 pounds of thrust have enough effect to notice? How about 100 pounds? Vehicle has a 0.25 coefficient of drag (car), and weighs 4500 pounds. I would really appreciate your help. Thank you.

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Plain English Physics 101-3 Excerpts from Published under new title Modified Monday, May 21, 2012 johnlawrencereed jr Excerpt on mass: Developing a mathematical logic through the subjective lens provided by our senses allows us to define the least action consistent [*] universe after our own least action consistent image, using the least action consistent mathematics. Our weight as [mg] and a force that we feel as [ma]. Both [g] and [a] represent acceleration. What does [m] represent? Mass? What does mass represent? An amount of matter? Since [g] with respect to the balance scale is a consequence of location, when we define an object in units of weight [mg], the q…

What mechanisms are there for converting between bosons and fermions?

So, the question I have is: "How does a charged particle rotating around it's central axis and moving with a constant velocity (v) behave when it enters a magnetic field?" I know the right hand rules and I know how it behaves when it only moves forward with the velocity v. But what happens when she's both doing rotational and translational motion? How does her path look then? And what happens with its velocity and the force acting upon it?(Drawings would be much appreciated.)

1. If you magnetize a piece of metal with a magnet will it weaken the magnet??

I had this idea for a new type of electric motor. (see diagrams in attachments) I have not actually built a working prototype. Would it work? Or specifically what I am asking is this: I know that the current flowing towards the magnet can result in a perpendicular force. Is it possible for current to flow away from the magnet (as indicated in the diagram) without inducing an equal and opposite perpendicular force? The new type of homopolar electric motor is similar in principle to the faraday motor. Unlike the faraday motor, however, this new design can easily be adapted to utilize multiple turns in the wire; in other words it can use coils of wire, rather tha…