Classical Physics

why is energy transfer in the form of wave?

How can we calculate the trajectory of non-spherical objects like a cube or an oblong football ? Is it even possible ?

I was just digging in to find the Relationship between Music & Life. I found some interesting areas which I thought I should share with you and seek help. I don't know if this classical physics forum is the right place for this thread, but I have posted it here for obvious reasons. I leave it to the Moderators to give it the appropriate place they think is. MUSIC Pitch: Pitch is a perceptual property that allows the ordering of sounds on a frequency-related scale. Pitches are compared as "higher" and "lower" in the sense associated with musical melodies, which require "sound whose frequency is clear and stable enough to be heard as not noise". Pitch is a …

If non-conductor materials like a rubber or glass rod have no free electrons then why they get charged with friction ? Is it due induction ( atomic polarization ) or something else ?

That’s the skepticism that has reached us through the Enlightenment. Those that refuse skepticism in the realm of science then, and denigrate it, and recklessly rely on an “Unquestionable Authority“, they are ultimately placing themselves outside of Science itself, and outside of nearly four hundred years of philosophy if not more. I am skeptical of both god and “absolute nothing" ....that doesn't mean that I don't believe god or "absolute nothing" could exist... Actually it is exactly the opposite..I believe that god and "absolute nothing" could exist... TRUE science(being open to ANY skepticism or falsification) though is the only thing that could possibly prov…

The question I have – is it possible to take the strength out of a destructive hurricane by triggering lightning bolts? Nasa once sent up a small rocket on a cloudless day with a copper wire attached & brought down a lightning bolt. If lightning electricity comes from the electricity in the lower Van Allen belt which is generated by the earth's core, you would think you could fire an ionized laser up through a small hole in a large suspended steel object and bring down a lightning bolt. If the electricity could be drawn off into container sized capacitors and then super heat a body of water to drive a turbine you could use lightning bolts to create consumable…

Nikola Tesla has always been my hero. (1856 to 1943) He invented alternating current which led to setting up the first city in the world with electricity. 6 of his patents went into developing the first telephone. He invented wireless transmissions before Maconi (despite what the patent office said), the precursor to our modern cell phones. He invented the first modern electric motor & electric car run from his wireless electrical plant which was stolen when his workshop plant was burnt down. He of course invented the Tesla coil. He invented basic circuit elements,the precursor to computers. He invented wireless electricity which still hasn't gone main stream tod…

I want to ask You please help me evaluate my IDEA step 1 1 not true base on the principle of conservation of energy ( please inform me page / and line where I write not true ) 2 not true base on the principle of conservation of momentum ( please inform me page / and line where I write not true ) 3 after You finish and You not find mistake so what is Your opinion what I can do as a next step ? A please read start.pdf B 2.pdf ( all waves has R^2 distance I just compare all waves in the same way I not confirm by experiment graitation but I see similar R^2) C rocket.pdf rocket.pdf I use SIX classical eguations ( plase inform me wher…

Hi, The drawing show what I want to study. A gas (temperature T, pressure P when W=0 rd/s) rotating at W rd/s, the gas apply force on each surface of each green wall, this force give a torque. Sure, torque cancel itself from opposite surface. I would like to calculate this torque function of r1, r2, W, D, P, T, thickness ? How can I do ?

is it possible to know how many impacts can a gas make with a certain area of wall using a kinetic theory of gas?

I am pretty unschooled in the world of physics so please forgive my lack of understanding. Firstly, the force that would cause the ball to move to the top of the structure is centripetal force correct? As the ball moves upwards through the Y axis, according to Newtons Third Law, as the ball moves upwards it is creating an equal force downwards? How would the force generated by the movement of the ball through the Y plane be calculated? Thanks<br><br>(assume there was an identical ball on the opposite arm behaving in the same manner to provide equal balance)<br>

I write very simple physics engine for game, which basically simulate springs with mass on end of it. Main problem is to implement all forces which may affect on my mass (because for now i treat spring as object without mass, so forces don't affect on it). What i have already done is gravitation, spring constant and dumping, but it's not enough for me. I want to make it as much realistic as it is possible. So my question is - which forces i forgot to include? What i know, I'm missing limit of spring length. I mean, for now if i have a spring with spring constant 1.0 N/m, length 5 cm, dumping 0.1 (forgot units) and I'll attach to it object with 10kg weight, my spring (…

It is a scientific fact that when I drop two ping pong balls (1/4inch apart and 6 feet above the water into still water the two ping pong balls pop up and touch. There is currently no physics law that covers this. The closest thing is the Huygens principle but current belief is that the reaction to waves aligning is negligible. This simple home experiment shows that the reaction to wave amplitude increase in a medium follows Newton's laws of motion and has been missed and overlooked and is NOT NEGLIGIBLE. neg·li·gi·ble /ˈneglijəbəl/ Adjective So small or unimportant as to be not worth considering; insignificant. Synonyms insignificant - trifling - trivial - inc…

Is the earth's gravity less since we shot 3 people into space? Reverse: does the Earth gain on gravity whenever extraterrestrial mass lands on it? Since gravity is an inverse square law given to distance and all, is the gravitational pull on the moon less when we (all humans) gather in one place facing the moon side, and jump for one second? This all regardless of any space debris falling down on earth, perhaps adding to its mass and gravitational pull. I am asking this because someone on another science forum told me that even if you landed the population of 20 million other civilizations on earth it will not change the gravity that earth exerts. I always though…

Hello guys! Now this is not a homework question, but it may sound like one. If a uniform sized and massed sphere was spinning in space away from any source of forces that could affect it, wouldn't the only forces that act on it are the centripetal and centrifugal? And if this sphere had elasticity, wouldn't the force that is stretching the sphere be either centripetal of centrifugal force? Now I am not including its gravitational force on purpose. Its gravitational field can be negligible. I also know that the centrifugal force is not a real force, but it is useful for explaining some phenomena. I'm using classical mechanics. The sphere will not be spinning at re…

Hey everyone, im in need of some help.. i would like some advice on air core electromagnets compaired to solid core. if a solid core EM is 1 1/4 tall and has 10 layers of 24 gauge insulated copper wire, then what size air core EM would compare to its strength using the same power supply 1.5amp and same voltage around 9volts.. this magnet has to work constantly for hour aswell. thanks for any info

I'm trying to understand what I have just learned. So some sort of browser based code or binary was discovered in equations for super-string theory. I have a few questions since I am very confused. If code was created by Claude Shannon in the 1940's, then how could it be in this code? Does this mean that maybe this person just discovered the existing code instead of create it? Can this be tested or is it all just theoretical? Finally, if these class of block linear self dual error self correcting codes exist and later string theory is found real, what does this mean for the whole picture? Could reality be some sort of virtual reality or maybe something else? …

Hey my name is Leo Saturday, i am trying to figure out exactly how to determine the amount of force a fan will produce given a certain fan angle, fan rpm, and fan blade radius. I would like to know this because im trying to determine what is the easiest way to lift a human off the ground using simple fan power. Thanks alot for whoever helps me out.

Would the 2 items displayed in the image below act as I expect in a zero G environment? Would they retreat away from one as depicted (assuming contact at 45 degrees) Assuming that item A had a mass of 100kg and was stationary, Items B have a mass of 1kg and travel at 10m/s. what formula would I need to use to calculate the velocities and vectors of the items after a collision?

Hi all, I'm having a difficult time trying to answer what I think is a simple question. When a spaceship goes near a planet, can it takeadvantage of both the gravity assist AND oberth effect, or can it only pickone? From a gravity assist, the spaceship could pick up as muchas Vf = 2U + v for an increase in speed From the Oberth effect, it can pick up as much Vf = sqrt((Δv+ sqrt(V^2 + Vesc^2))^2 - Vesc^2). (Δv is burn, Vesc isescape velocity at planet peri, V is initial velocity, U is planet's orbitalspeed, Vf is the ship's final velocity after leaving the planet due to eithereffect) How do I calculate, roughly, the final velo…

We know well gravity between two objects. The relationship is like this. Fg= G M m / r2 Then, how to calculate gravity at a point in the sphere?

Today in the Speculations forum (http://www.sciencefo...-go-on-forever/) I heard for the first time about Reidar Finsrud's machine. It is not perpetual motion, let alone free energy, but a machine said to have 99% efficiency. After 3 days in operation, it lost only 1/25 of a second so it appears to be harvesting energy from somewhere to offset friction and air resistance. For more details, and a video, check out that post and http://peswiki.com/i...erpetuum_Mobile The machine has been known since 1996 so I assume it might be known to some members of this forum. Finsrud calls the prime mover a "free force." The mechanism comprises a wobbling ball race connected to …

We physicists must be careful to insure that theories begin with correct principles. One basic principle is that all quantities must be capable of being observed or measured. If a theory uses a quantity that cannot be observed, then it is not a physics theory, but a hypothesis or a phenomenological explanation. These are important logical explanations, and possibly quite useful for proper applications, but not a proper theory. We must continue our efforts to find a proper theory. An example of a theory that does not begin from basic principles is special relativity as originally expressed by Einstein. He postulated the speed of light is constant in all inertial frames…

I'm confused - I have a hobby that prompts people to endlessly remind me that perpetual motion is impossible. And yet everything I see and know states that motion is the only constant. Umm??? So confused. Edification please. Thanks in advance to the forum. I am positively delighted to have found this forum. This is better than s'mores (though nothing beats a campfire for pure enjoyment).

Laws of energy state that all forms of energy is conserved to a different form. Since light bulbs produce and run by energy, I wanted to know if it was possible for them to use their own energy for use. Perhaps using some form of solar powering? However, This would be useless, since you would initially have to use your house's electricity in the first place to turn it on. What do you guys think? This is my first post, by the way.