Physics

Do you think that physics is the most fundamental of the all the sciences? And if yes, then do you think that physics will one day provide a complete theory (a theory of everything) of all the phenomena in existence including space, time, energy and matter?

I just saw in my dream the classical physics concept called 'dielectric'. In that dream i looked towards the third dimension of the rainy season sky. As the wind was high, it created a visible dielectric charges in the clouds. Even if there were few rainy clouds, the winds path in the sky atmosphere belt made similar flow structure, so creating corona discharge effects between clouds. As if a bipolar charges between clouds' lines. The lesser the flow higher was the density of dielectric present. http://en.m.wikipedia.org/wiki/Dielectric It was not a lightening.

Surprising there is little on this forum about Spacex. They performed an admirable feat in successfully launching their Dragon spacecraft, docking it with the ISS, and now recovering it from space: SpaceX Dragon Capsule Splashes Down in Pacific, Ending Historic Test Flight. by Clara Moskowitz, SPACE.com Assistant Managing EditorDate: 31 May 2012 Time: 11:44 AM ET http://www.space.com/15939-spacex-dragon-capsule-landing-pacific.html It is quite important to note though that there is nothing particularly innovative about the SpaceX designs. Their engines are no more efficient than the engines on the original Atlas rocket of the 60's that first launched Alan S…

This is a discussion about scientific states (physical, chemical, biological...) which is not usual in textbook and other resources (an exception seems to be quantum mechanics textbooks, which devote some space to discuss what is a quantum state). Among material not covered in basic textbooks and encyclopedias I would emphasize that I introduce a hierarchical description of states first developed by Joel Keizer; a rejection of the "Bayesian interpretation of physics" over the basis of recent advances in statistical dynamics; and the proposal for substituting the term "physical states of matter" by the more adequate and precise term "phase of matter" (I include a link …

I was watching discovery and came 2 know about the new revolutionary theory of nicodem poplowski who said that energy which pass through black holes are sent 2 new universe inscribed in it via white holes,but the time in black holes is 0 due 2 heavy mass and 2nd reason is that the co ordinates of black holes are intersecting due 2 which energy can't pass through it......... I think that's why black holes are not the medium to new universe

If a stone was dropped from a very high building and collided with the pavement, would any electrons physically touch?

In open space, water basically turns to snow. It turns to a gas due to the reduced air pressure, and then freezes due to the low tempurature, resulting in common snow. In fact, this is how snow is created on earth; the water expands due to the lowered air pressure high in the sky, but also freezes due to the cold winter temperature. But what about in a spaceship? The metal walls will keep the air pressure intact, and it can also be artificially heated to prevent... well... the astronauts from freezing to death. Would having no GRAVITY actually have any immediately noticeable effect on the water? If so, how do astronauts solve this problem?

Well I didn't know where to post it but I was asking myself a question today. I'm in no way qualified to attend to a debate about it and my question might be very dumb but well I doubt so. So my question is : Why the light doesn't make sound ? Meaning," A sonic boom is the sound associated with the shock waves created by the supersonic flight of an aircraft. " I know the phenomen goes for everything going faster than the speed of the sound. The light being waaaaay faster , why doesn't it apply to it ? Wich makes me think that light is not material ? (I've heard it was, that's why i'm asking ) thanks

Got a question on a past paper and completely forgot how to do it. 3 particles have speeds 935m/s 743m/s and 312m/s. Calculate rms speed. Can anyone help

The Science and working of Steam Engines! http://en.m.wikipedia.org/wiki/Steam_engine

I don't consider myself a genius, or compare myself to those who have been called geniuses, however; when it comes to theories that geniuses have on "time" I argue that most are out smarting their common sense. So what is my argument? What is my definition of "time"? Well, in my opinion time does not exist. Let me rephrase my last definition: Time is a record, or a count, that tracks two bodies in motion ( the earth and the sun in our case). Time is a tool that humans created to keep track of their everyday life. Time does not exist as a medium necessary for life to exist! Let me try to simplify this a bit further; time is the count of the earth rotating about the s…

Diffraction http://en.m.wikipedia.org/wiki/Diffraction#Diffraction_of_light Accoustics http://en.m.wikipedia.org/wiki/Acoustics Thermodynamics The funniest part being in imagining scientists working on 'entropy' http://en.m.wikipedia.org/wiki/Introduction_to_entropy

CAn any one explain me Stephen Hawking's Theory of Everything?

This is a question involving the orbital mechanics of spaceflight. There are a few different components to the question. First, if our Mars rocket departed from the Moon or a Lagrange point propellant depot fully fueled towards Earth at, say, 11 km/s or more, so it's moving at speeds beyond Earth's escape velocity, then in just passing by the Earth it should pick up additional speed equal to Earth's escape velocity about 11 km/s. So at least temporarily it should have a speed of 22 km/s. But the problem is that it still will be slowed down by the Earth as it proceeds to Mars, so it will lose some of this speed. How much speed will it lose? What I want to do is leave E…

[This is in reference to an argument attached below that the Ariane 5 core stage can be SSTO with 3 Vulcain engines.] The most important accomplishment of SpaceX may turn out to be they showed in such stark terms the savings possible when launchers are privately financed: SpaceX Might Be Able To Teach NASA A Lesson. May 23, 2011 By Frank Morring, Jr. Washington The SpaceX experience of developing a launcher in the Falcon 9 at 1/10th the cost of a government financed one also holds for the crew capsule development costs since the Dragon capsule cost about $300 million to develop while the Orion costs several billion and still counting. So it can…

If 1/0 is not infinity ,this means that universe can also be measured with this???????????????just think.............

Hi, I've been thinking about soloid or solitary waves alot lately, and I was wondering has anyone successfully built a soloid generator that used plasma as its medium? I looked into the topic but only found demonstrations in a water tank or in a tank of metal balls. I would seem logical to me that such a wave could be generated in a plasma, what do you think?

A stream of water falling down a faucet will experience the force of gravity which makes it accelerate. As its velocity increase, in order to conserve its volume, the stream will get narrower, as it travels down. My question is; is that the only reason why the stream gets narrower when it is falling from a faucet? Water molecules can form relatively strong hydrogen bonds and also the stream experiences air resistance. Don't these forces also contribute to the stream of water getting narrower as it flows down? Thanks.

Hello, I have here a Navier-Stokes equation: It represents the conservation of energy in fluids. This is going into a book I'm writing and my editor says I need to cite my source for this formula. Truth is, I got it from a website that no longer seems to be online. Does anyone know of a source (book, website, journal article) that I can cite confirming this.

Every once in a while The American Journal of Physics has an article which is a list of resourses such as a list of important experiments done to verify relativity. A list of those articles is found here http://ajp.dickinson.edu/Readers/resLetters.html Is this the right forum to post such a list?

I recalled my childhood days favorite movie called ' armageddon'. Its very very funny, might be a bogus movie for some movie goers. But i like its quick story line and stupid cinematography. The sci-fi concepts in that movie are lesser gravity on the asteroid surface. The moon jumping of neil armstrong. The space guys travel motion in zero gravity much further like as flying to some meter distance. Like as in a satellite motion, the falling object travels in a parabola like as if flying concept of ironman movie. Another thing to note that passing through time frame in zero gravity does it occur to neglify time? Or the time itself acts to slow down as gravity tend…

Two separate teams announced plans last month to do asteroidal and lunar mining: Google billionaires, James Cameron backing space resource venture. By Alan Boyle Renowned scientists join tech visionaries at Moon Express to mine the Moon for planetary resources. There has been alot of skepticism evinced about the possible profitability of such plans. However, in regards to the justification for these endeavors, several studies have shown many of the important metals for high technology such as platinum at present global growth rates, especially in the emerging economies such as China, will be depleted within decades: Earth's natural wealth: an audit …

http://www.youtube.com/watch?v=iFRKJ6PZZ3c&feature=g-vrec I for one think this could be bullshit, but since you people know more about different sciences than I do, I thought you could help me determine whether or not these "UFO" sightings were real.

Noether theorem says that with symmetries come conservation laws and so because of time, translation and rotation symmetry, EM field itself guards energy, momentum and angular momentum conservation. While atom deexcitation there clearly appears energy and (orbital) angular momentum difference, so there should be created EM field configuration carrying this difference. Photon's angular momentum is usually imagined as something only "quantum-transcendental", but in fact it is very real angular momentum. For example Richard Beth in 1936 has measured the tiny reaction torque due to the change in polarization of light on passage through a quartz wave plate: http://prola.aps…

I am trying to use an infrared LED and photodetector to make a crude obstruction sensor. The problem is that it has to work outside and the infrared radiation from the sun is causing false readings (non-blockage when there is a blockage.) I had an idea of maybe using a polarized film to block out most of the sunlight. I've read that most reflected sunlight (off of the ground is my main problem I believe) is polarized horizontally. So I would install my film (right in front of the detector) so that it is vertically polarized. Is my thinking correct or is it flawed? Any other ways to deal with the sun? Thanks in advance for your help!