Classical Physics

Two closed systems are linked to each other. Both use same object. In one of this closed systems was spent energy to change physical property of shareable object. After this object transformation, other closed system changes it's own equilibrium state. Will the work in changes between equilibrium states of one closed system equal to quantity of the spent energy in other closed system? Details, how is this looks like. https://somephysicsideas.wordpress.com/2016/01/23/switch-theory/

ISAAC NEWTON HAD had a had a hard day. He was hardly unprepared for it when it hit him. Bouncing off the left side of his noggin at an angle that could hardly be called scientific, it took two bumps and fell silent. An apple. A great big fat bloody apple, seeming to LEER AT HIM from down there. Newton shuddered. Now, a normal person would have just let the bleedin apple go at that. Not netwon. His great scientific brain began to twitch. Turning his head he looked more closely at the wretched apple, the full force of his scientific glare nearly halving the apple in shock. You, it seemed to say. come here. WHY? That was the question. why..how dare the blessed apple…

If I understand it correctly then in thermal creep, gas can move from a cold to a warm side...it doesn't need a pressure difference. But what causes gas to behave like that? And how can that drive the vanes in Crooks Radiometer?

Gravi22.pdfI would like to introduce my "The unified theory of gravitation and electromagnetism" to the distinguished participants of the forum. But, in the message, the formulae are not printed, although typed correctly. That is why I have placed the text of my theory in the appendix to this message.

Will the pole star remain constant ?

A simple pendulum sinks in water. The density of water is 1000kgm-3. The density of the bob is 1500kgm-3. The effective length of the pendulum is 1m. Gravitational acceleration is 9.8ms-2. What is the period of the pendulum? Neglect viscosity. i can measure the period in the air or free place.but how can i measure the friction of water?

So when two magnetic fields interact, neutral points are created. Assuming we had a ring magnet that was magnetized in such a way that they could be naturally stacked into tubes (http://www.leevalley.com/us/images/item/woodworking/magnets/99k3601s1.jpg), does this magnetized tube contain its own neutral point independent of any interaction with another magnetic field (such as the earth's). Interaction of one magnet with earth's magnetic field Interaction of two magnets' magnetic fields. Interaction of magnetic fields from two currents.

For Fourier's law [latex]\vec{J}=-k\nabla{T},[/latex] where [latex]\vec{J}=[/latex] conductive heat flux in [latex]\frac{W}{m^2}[/latex] k=thermal conductivity in W/m-K T=temperature, [latex]\frac{1}{k}\vec{J}[/latex] certainly appears to be a conservative field with temperature as potential and for any path from position a to position b, [latex]\int\limits_{path}\vec{J}\cdot d\vec{r}=-k(T_b-T_a)[/latex], i.e, conductive heat flows from an equipotential surface at [latex]T_a[/latex] to an equipotential surface at [lower] [latex]T_b[/latex] This is analogous to: [latex]\vec{F}_{grav.}=-\nabla{\mbox{[potential energy]}}[/latex] where [latex]\int\limits_{path}\ve…

What is the origins of thermal motion?

It's my understanding that sound is a wave that travels through the air. And that waves can cancel each other out. So, I have a couple of thought experiments. Experiment A. If I take two speakers and point them at each other and play the same sound, at the same time, and at the same volume, I assume the waves would cancel each other out and I wouldn't hear anyting. Here's my questions: 1) Are the paper cones still vibrating? 2) If not, are the magnets still vibrating? And, 3) If I turned up the volume on one of the speakers would I hear the sound? Experment B. If I mount some speakers back to back, and on a track, (No rhyme intended,lol) and I…

I read a question elsewhere, asking what is a photon, a particle or wave. I haven't read any of the answers yet, because a question came to mind. Why isn't a wave considered to be a property of a particle? Then an after thought. Why wouldn't a virtual particle then be considered to be a property of wave interactions?

if I buy a motor from a shop I can just know itz power. hpw I can know the angular valocity or the acceleration of it to determine the upward torque?

Dears, I have interesting model here I need your opinions to improve it so that it will never stop, and run permanently Thanks

If one were to have two identical photons leaving two emitters, and heading on parallel paths of equal distances, aimed at the two slits, hitting a screen, and both photons were measured by identical instruments, would the interference pattern continue to show the wave pattern due to both photons being affected identically? In other words, if measuring one photon destroys the wave pattern, could identical distortions (measurements) on both restore it in the theoretical sense?

I have a question regarding gravity, if you spin something really fast, i mean like spinning a rope with a rock tied to the end and im spinning it almost faster than you can see that the object is there. Would there be a force from this? Expanding from there, if i was spinning this rock in space (again faster than your eye could perceive but the rock is heavy and im strong) , with no air or other fluid just the vacuum of the void. If you were standing say 2m away from me would you feel any kind of force? Say were both facing each, such that were adjacent to each other and you tried walking towards me, would you feel a pull or a push or neither? And you are ovcours…

Where G is the Gravitational Constant 6.674×10−11 N⋅m2/kg2 m1 and m2 are the masses of the two objects in kilograms and r^2 is the distance between them squared I tried a test problem using the Earth and the Moon, and had some questions. My values were: moon:7.34767309 × 10^22 kilograms Earth:5.972 × 10^24 kg distance between their centers of mass: 384,400,000 meters I ended up getting this for an answer using the calculator built into the Google search engine: 2.9285715e+37 which didn't look right, so I did it again but to do it faster I only used a few of the decimal places in the numbers, and got 7.4778663e+28 I've had problems with this calculator be…

Hello all I have put my ohmmeter across the output of the adaptor of a small pair of Logitech speakers. The adaptor has an output of 16 volts and 1.2 amps. The reading just moves about haphazardly. Would this be something to do with the magnetic action of the transformer or am I not doing this properly? More to the point, I wish to buy a replacement (as it is kaput) and I fancy a "universal" one. How important is the output and how far can I stray from the manufacturers requirement? Say, If I have a speakers with an adaptor of 16 volts, what kind of percentage of milliamps up or down would make a difference and how would I judge which setting? I would not…

! Moderator Note This thread is a branch. To discuss multimeter reading on Logitech speaker go back to original thread. E = Volts (pressure) I = Amps (volume) aka current R = Ohms (resistance)

I heard Kip Thorne say that the matter falling into a black hole gets completely destroyed. If gravity can exist essentially on it's own, and no longer requires the matter which created the field, presumably having converted all matter energy into gravitational energy, is there any thinking on how to build a black hole directly, with some process needing no mass to "get it started", but by directly manipulating space ? If the black hole horizon is the place that virtual particles separate, could some induced "splitting" of a single virtual particle pair mimic some properties of a microscopic BH?

I was staring at the hook in the wall that holds up my guitar and I noticed over time it has gradually started pealing at the top. It occurs to me that the weight of the guitar is very gradually pulling the hook out of the wall and may very well collapse years from now. So it got me wondering.......when you hold something up, force is being applied constantly. Does that mean energy is being used constantly to hold the guitar up? Or am I thinking about it wrong?

Hello forum i'm new and sorry about my english because im italian. My question is about a film i see yesterday. one submarine hit one rock and start to fall deep. 3 pepole of the crew use an escape blankit and reach the surface. my question is you cant compress the wather but you can compress air. If you compress air become heavier and i think you cant exit from the submarine and reach the surface whitout a motor. There is a formula that I can do to find the depth where the air becomes heavier than water?. im sure about this because i use to dive and when the tanks are full they sink when are empty they floath. and my friend archimede thell me this is true .. ty !!

I have a question about two different tools, both with handles that are offset out of line with the working end. The first is a snow shovel: Does this offset handle confer any real physical advantages? Is it easier to lift when full because my arms are at a better angle to take advantage of my strength, or could I do the same thing with a straight handle by holding it differently? Or does it only seem easier to lift? The second is a sword. Both the falcata (shown below) and the Egyptian kopesch have a slashing blade offset an inch or two from the handle, putting the blade forward of where it would normally be when striking a target. The idea is (or …

Question: Why do two things with different masses fall at the same time when dropped from different heights? **if its already been answered don't read unless u want to really hear what i have to say.If you can explain the answer in the comments** Before i go on I'm not anywhere near college I wondered about this question and I thought of all the things I've learned on gravity and its not a lot. I may not use the correct terms for the answer. My answer: Since the earth is huge and massive it has a higher amount of force pushing on itself but its not just the earth every object must have some amount of force pushing itself. The two objects I'm going to use as ex…

At first I would say no, and that this is the same type of flawed logic that leads people to believe that when a ball is being swung in circular motion on a string, and that string is cut, that the ball will go in a an arc. But instead it flies off tangential to the point at which it was cut. But then someone pointed out to me that you can put english on a cue ball to make it spin. They then said that if you were to twist the gun so that the barrel was moving faster (in a curved motion) than the bullet inside the barrel (as most guns typically make their bullets spin as part of the design) the bullet would be essentally the same as a cue ball that was hit with an ang…

Could a sudden re-direction of rifling in a rifle barrel alter the velocity of a bullet? Some manufacturers have rifle boring in a right spiral, while other a left. What if half way through the barrel there was a right spiral then an immediate left spiral down the rest of the barrel. Would this sudden change in direction dramatically slow down the bullet...I doubt stop, but probably really effect its velocity. ~EE