Physics

Thanks for answering my question, please i need help. Distinguish between potential difference and electromotive force and electric potential

how does a lens form an image

I need a pun or catch phrase on the either Neihls Bhor or Ernest Rutherford. The pun/catchphrase must me about the scientists experiments and/or their discoveries. Neilhs Bhor discovered that there were orbitals around the nucleus which electrons rise and descend from depending on their energy levels. Ernest Rutherford disproved the scientists before him, who believed in the raisin bun theory, with his famous gold foil experiment. Thank You (in advance) P.S. I`m not a 100 percent sure this is the right place for this question, but if you could spare a few minutes and answer, it would be AWESOME! Thanks again

Because one 3 dimensional view can be observed at a time or at once.

I didn't see an actual Philosophy of Science forum so I'm posting this here in hopes of getting some responses from more "hardcore" science folks. Back in my physics days in college I read all sorts of complex math with terms like Riemann manifolds, gauge invariance, tensors, etc. I was never anywhere near smart enough to understand these. Regardless, I had this notion that if only I *was* smart enough, I'd be able to talk the language of the universe. Most of my hero's are scientists, and I've always revered them partially because they did speak this wonderful language. Then years later, well after leaving college and going on to other things, I was reading abo…

Please excuse my ignorance if I seem to ask very basic questions but I am looking to gain a better understanding of things I do not know but know I need. In the pursuit of energy what would happen if a Hydrogen Atom was pressurized causing the electron to orbit closer to the nucleus. Thank you in advance for your time.

I formulated an equation which describes the radiation emitted by an accelerated charge in a gravitational field as [math]P = \frac{2}{3} \frac{e^2}{(\frac{m^2}{1 - \beta^2})c^3} \frac{1}{\frac{\sqrt{1 - 2\frac{Gm}{\Delta E} \frac{M}{r} + \frac{GQ^2}{c^4 R^2}}}{\sqrt{1 - 2\frac{Gm}{\Delta E} \frac{M}{r} + \frac{GQ^2}{c^4 R^2}}}} (\frac{dP}{dt})^2[/math] [math] = \frac{2}{3} \frac{e^2}{c^3} \frac{a_{g}^{2}}{(\frac{\lambda}{\lambda_0})} [/math] The unique part of this equation is that not only does it describe the energy emitted, but it describes the wavelength emitted [math]\lambda_0[/math] and an observer at [math]R[/math] measures the wavelength as [math]\lambda_…

all you need is a MIRROR. It works on the principle that, when you look at yourself in a mirror, you arent seeing YOU, per se, but the BACK IN TIME you. How? When you look at a mirror, the light rays start off at your eyeball, bounce on the mirror, get reflected back off into your eye, thus creating the mirrorical picture you see. Now. it takes TIME for those light rays to do all that stuff, going off your eyes, travelling headfirst into the glass of the mirror with a bang, then painfully lugging the picture off the mirrors surface into your eye again. all this takes time, init? light travels at 3 million miles per second, which means it takes 0.0008763 seco…

How can space and time be twisted while physically time and space do not exist? Confusing really.

Extended ising model ground state configuration algorithm Is there a general solver (or theoretical algorithm) for ground state configuration of extended ising model, which involves arbitrary lattice, arbitrary number(3,4,5) body interactions and arbitrary Hamiltonia, and arbitrary number of spin(-1,0,1 and so forth) ? Except exact enumeration, what could we do better? Could this problem be translated as an optimization problem? I know such requirement is too stringent. But is there some research or established knowledge that aims to accomplish this?

Hi, I want to do mathematical research (algorithm construction and mathematical analysis) on ising model ground state configuration. From what I know, the state of art research is using graph theory formalism. Could someone give me some advice on how to learn this subject (say, what books or papers to read) to a research level from a basic undergraduate math background? Thanks

I'm working on a video comparing two fictional characters, and who would win. I need to know how much Newton it would take to rip out a humans spine?

It is known that black holes give up radiation. For very large black holes, this will take a very long time. But nevertheless, they do, including smaller black holes. I am not aware though of any metric which describes this. You may actually rewrite the metric in terms of a rest energy for a non-rotating black hole [math](1 - 2\frac{Gm}{E} \frac{M}{r_s} c^2 dt^{2}) - \frac{dt}{1-2\frac{Gm}{E} \frac{M}{r_s}} - r^2 d\Omega^2[/math] You won't recognize this exact expression, but you might be aware it is another way to write the metric. You won't recognize it because I derived it. But what is interesting is that we can discuss the energy of the system in the metr…

comparision between supersymmetry and cpt symmetry

I've been very curious about this since I starting to believe about the origin of universe. What causes the big bang anyway when there was nothing in existence prior to it?

Mysterious island Appears shocking video: http://third-secret.pro-forum.co.uk/h55-new-island-announces-the-arrival-of-the-kingdom-of-god

The hypothetical Hawking radiation means that a set of baryons can be finally transformed, "evaporate" into a massless radiation - that baryons can be destroyed. It requires that this matter was initially compressed into a black hole. If baryons can be destroyed in such extreme conditions, the natural question is: what is the minimal density/heat/pressure required for such baryon number violation? (or while hypothetical baryogensis - creating more baryons than anti-baryons). While neutron star collapses into a black hole, event horizon grows continuously from a point in the center, like it this picture from: http://mathpages.com/rr/s7-02/7-02.htm As radius of event horiz…

This is strictly a question and not a conjecture. Let me start off with what we know for sure. It is well-known that in quantum Fermi-Dirac statistics, that fermionic matter interacts in such a way that spin cancels out; this creates the so-called, atomic chemistry of the periodic scale. The exclusion principle truly is responsible for the vast elemental differences in this world we observe. But perhaps more interesting than that, is that Dirac statistics provide a measurable effect in which matter cannot occupy the same space - this will mean literally, the same physical space parameter, a point in the vacuum. However, there is a huge exception: massless radiat…

This should be an easy question to answer... I'm curious. I know that time is relative between moving objects. I also understand that as an object's velocity approaches the speed of light, that difference in time is made more apparent proportionally. So my question is this: Is time relative between two stationary objects/people? For example, say there were two observers sitting in a room across from each other. Assuming neither is substantially closer to the center of a large mass than the other, would time still flow at a constant? Would they both experience time in the same way? Follow up: What if they were both moving at the speed of light (as if the room were part…

There is actually no such thing as empty space. All space, is a bubbling sheet of virtual particles. Empty space is a Newtonian concept. In fact, it's an electromagnetic aether. Space isn't normally called an aether because it is generally considered taboo.

Can you direct or bend or channel a laser light using standard fiber optic cable and maintain the wave length? Thanks

Wet.

If space is so cold, why is the Earth so warm?

Imagine that at the start of the universe, a photon has a short wavelength x. Due to the universe expanding its wavelength decreases. A longer wavelength suggests that the photon has lost energy over time. (I've googled it and found out that the photon has lost over 99,9% of its energy over time). What has happened to this energy? Can one of you come up with a reasonable understandable explanation (I'm a first year physics students, so my toolkit is very limited). It undermines the principle of the law of conservation of energy, if the energy is just lost.

Ive been stuck on this problem for a bit, I'm not exactly sure what equation to use to solve it so any help pointing me in the right direction is appreciated! You are traveling on an airplane. The velocity of the plane with respect to the air is 120 m/s due east. The velocity of the air with respect to the ground is 44 m/s at an angle of 30° west of due north. what ive found : planes speed relative to the ground is 105.15 m/s question i can't figure out : 1) What is the heading of the plane with respect to the ground? (Let 0° represent due north, 90° represents due east).