Modern and Theoretical Physics

Hello, I have made observations of deep space objects as an armchair astronomer. I have questions and theories which may be of interest to you. The Einstein-Rosen Bridge presents as a possible starting point for the "Big Bang". Other observations include an apparent force field surrounding Centaurus A and SS433. NGC1097 has the longest optical jets currently known in space. One of those jets, the brightest, has taken a ninety degree turn and assumed a curving path. I suggest the beam from NGC 1097 consists of matter expressed as something akin to a gravitic waveform. Other examples of jets which behave similarly are SS433, SN1987A, and Centaurus A. The idea behind grav…

soo, why exactly can electromagnetic waves travel through space? or do we now know? They are a wave, so they must "wave" through something. I have asked my science teachers this. They say that an electric field is generated, which in turn generates a magnetic field, which creates an electric field, etc. But is this a legitimate explaination? Is it that light is made of photons, which are like a particle, so they can travel through a vacuuuum? Is it that the wave is actually "waving" through fluctuations in space at a quantum level (virtual particles)? I am confused. To me, radiation should not be reaching earth from the sun. It has no medium. If it do…

Theoritically we know well light is electromagnetic wave. We know light wave fellows Maxwell equations . How do we know light is electromagnetic wave by experiment? Light dose not interact with magnetic fields.

Hi, would someone be able to give me the link to a full PDF introduction to loop quantum gravity... It will much appreciated.

Ok, when do photons ever collide to form electrons? That makes no sense. Why wouldn't they form protons or neutrons ever if that's true? ! Moderator Note This has been moved from the pair-instability supernova thread

Can we make this kind of space, i.e., even electromagnetic waves can not travel? Is it impossible to make primeeval vacuum(electromagnetic waves can not travel) by using modern technology?

how does perpetual motion defied the law of physic and the law of thermodynamic?

If I had a perfectly straight tube running from the North pole of the Earth to the south pole and dropped a rock in it, would the rock fall to the other side or would ir stay in the center or the Earth? I guess it would depend on if the harmonic oscillator is over-damped, but I don't know for sure.

My husband asked me last night, what I 'see' whenever I close my eyes. I told him 'nothing.' I asked him 'why' what do you see. He said he see's passing images or 'picture shows' as he really calls them, and they just pass by every few seconds. He said he thought everyone seen them. I told him NO, we don't. I asked him how long this has been going on he said 'always.' I asked him what he was seeing now...he said a field of tigers just walking around, then a few seconds later he said he was walking through a crowd of people..I asked him what they were wearing he said just normal clothes..then he seen what he described as a chandelier of sorts then something else after th…

Hey, everyone. I've been reading an old book from the 60's- "Atomic Physics Today," and I was wondering if someone could verify and elaborate on one of the claims the writer makes. It states that when an overcharged electric current is passed through a filament, such in a way to mimic the sun's heat and to catalyze a thermonuclear reaction, the heat becomes enveloped by a magnetic sheath which redirects the energy within the confines of a small, tube-like field. Is this factual? And if so, then what is the scientific cause? Thanks for taking the time to read this!

=-can anybody here help me?? my teacher ask me about this: HAVING THE SAME VELOCITY, AND FROM THE SAME HEIGHT. WHAT WOULD HIT FIRST ? A FREE FALL BODY? OR A PROJECTILE BODY? I told my teacher that at (zero degree angle) both body will fall at the same time. he ask me what if not zero angle?? so i told him.. free fall will hit first. but i saw a unconvincing reaction from his face. therefore he wasn't convince with my answer.. any body help me convince my teacher if i am ryt. or if i am wrong... show some proof?? please...

Hi, im wondering how there can be multiple superstring theories... isn't there only one susy..

Can we consider our universe an isolated system?

Does alternating current emit electromagnetic wave? If so, how about collating the disposable energy by using antenna?

From the wikipedia article about String Theory. Evidence shows that the 4 known dimensions (3 of Space, 1 of Time), are only positive. It means: distance along X, Y, Z is only positive, time is only positive. My questions are the following: 1.Is this "positive feature" appearing from the Theory or artificially inserted on the basis of evidence? 2. what about the remaining dimensions: are they positive? are they negative? or are they not constraint by anything being positive negative wathever it takes?

Problem is simple. Does huge magnetic force affect the light direction ? One of the examples is neutron star.

Let us think about this case. When there are anti-hydrogen and anti-deuterium, and there is a fusion reaction between them. Is it a exothermic reaction or endothermic reaction? For example hydrogen + Deuterium fusion------------> exothermic + Hydrogen + Anti-hydrogen fusion -----------> exothermic + Anti-hydrogen +Anti-deuterium fusion -----------> ??? Is Hydrogen + Anti-hydrogen fusion energy 2 m(hydrogen mass) C2 ?

hi ive just started reading about antimatter my question is quick: when the antimatter is created, will it only annihilate with it's original twin matter or can it annihilate any other matter?

Hello! I am supposed to explain the behaviour of the thermal conductivity of tungsten. I have plotted the relation http://img340.images...76/heatcond.jpg is also experimental data Temp[0 10 50 100 300 500 1000 2000 3400] and thermal conductivity coefficient 0 97,1 4,28 2,08 1,74 1,46 1,18 1 0,9] Can someone explain the mechanism to me? Why does the thermal conductivity reaches its maximum for T=10K ? and after that it gradually decreases and after some temp is behaves almost like constant? How this can be explained taking free electrons and phonons into the concideration? Thank you!

Is it possible to measure very very little current, i.c., 10 electrons per second? We can use amperemeter to measure ampere . But how can we measure very small ampere. I think this instrument might be very useful to measure bio-electrical signal and nano-pore DNA sequencing.

Can someone please try to help me with this. I have a bcc structure and the question is ''Clearly indicate the unit translation vectors and state their value in Å. I have attached the sketch : http://img440.images.../picture3lh.jpg are those t1,t2,t3 translation vectors? I know the cell parameters are:[tex] a=b=c=31652\AA[/tex] Are these correct values of t1,t2,t3 then? [tex] t_{1}=(-\frac{a}{2},\frac{a}{2},\frac{a}{2})=(-15826,15826,15826)\AA ?[/tex] and similarly the rest? And one question more. We need to calculate the volume of the conventional unit cell and volume of the primitive unit cell, is this correct? [tex] V_{conv}=a^{3}=3171\AA^{3}[/tex] [tex] V_…

What is actually meant by the ''charge'' of a particle??Why we interpret it by ''positive'' and ''negative''?In 2-d vector view,it can be meant as direction,but if we consider a multidimensional view, then is there any existance of other kind of charges??

I m posting one of my thought experiment here,which is as follows.Please have a look through it and give suggestions or make out errors if dere is.......(some confusion is dere wid the moment of inertia of a disc(a coin in dis case).If its given wrong,please correct it...... COLLAPSING OF PROBABILITY INTO CERTAINTY IN CLASSICAL MACRO-SYSTEMS:- Thought experiment:-'Tossing of a coin' :----- When we toss a coin, we force it up and it performs both rotational motion and translation motion. In our views, we find out the probability of whether a head will come up or a tail. But, if we carefully investigate the motions under certain given parameters, it may be poss…

Does anyone have a link to mathematical justification of Hawking's claim that nothingness can generate a universe?

I was wondering what gives particles charge in the first place - has it got to do with their quark constituents or something else.. or does it revolve around their interaction with external influence.. etc etc