Relativity

HOW WORK THE SAME LASER ( time t ) BUT DIFFERENT ROCKET SPEED IN THE UNIVERSE ? GALILEO STARTED WINDOWLESS ROCKET PROBLEM " Imagine an observer traveling inside a windowless spaceship moving away from the sun at constant velocity. Galileo asserted that there are no mechanical experiments that can be made inside the rocket that will tell the occupants that the rocket is moving . The question ``are we moving'' has no meaning unless we specify a reference frame (``are we moving with respect to that star'' is meaningful). This fact, formulated in the 1600's remains very true today and is one of the cornerstones of Einstein's theories of relativity." BELO…

EVERYONE KNOW WINDOWLESS SPACESHIP PROBLEM GALILEO STARTED ... " Imagine an observer traveling inside a windowless spaceship moving away from the sun at constant velocity. Galileo asserted that there are no mechanical experiments that can be made inside the rocket that will tell the occupants that the rocket is moving . The question ``are we moving'' has no meaning unless we specify a reference frame (``are we moving with respect to that star'' is meaningful). This fact, formulated in the 1600's remains very true today and is one of the cornerstones of Einstein's theories of relativity." Michelson Morley proved that light speed is indepentent . Light spee…

Hi, I hope someone can explain where my reasoning is wrong. The faster something travels relative to an observer, the slower time passes for the moving entity. Taking this to what appears to me as a logical conclusion... If I, the observer, see light from Sirius; since it is travelling at the speed of light, the light should arrive instantly since no time would have passed, disagreeing with the light from Sirius taking ~ 8.6 years to reach my eyes on Earth.

If you sped up a Mandelbrot fractal generator on a screen would your apparent speed of zoom be limited by relativistic effects?

I have aquestion regarding the topic. We say that the earth rotates on its axis which causes a bulge in its shape. Conversely we can say that the gravitational effects of the motion of whole of the universe causes the bulge. But will not the distant stars of the universe cross the restricted speed of light c in the process? How can we explain this phenomenon?

hi all. i have a sertain problem, with Relativity. thats the following. Suspect A + B, they know each and both start at the Center both a carry a atomic clock, *pocket size* and ofcourse set to match both are in the Center, they start waving at each other at a intervall of 10 seconds a wave. now, they moveing away of each with a super fast car, but still waving at each with speed of 100.000 Meters a second *damn fast car* the journey will take around 3 mins for both drivers, each will see 18 times a waving. now here comes the trouble. Subject A, getting Tiered of waving, and sudden stop waving. It will take Subject B 120 seconds to know Subje…

'Empty Black Holes, Firewalls, and the Origin of Bekenstein-Hawking Entropy' http://arxiv.org/abs/1212.4176 "But why an incompressible fluid? The reason comes from an attempt to solve the (old) cosmological constant problem, which is arguably the most puzzling aspect of coupling gravity to relativistic quantum mechanics [13]. Given that the natural expectation value for the vacuum of the standard model of particle physics is ∼ 60 orders of magnitude heavier than the gravitational measurements of vacuum density, it is reasonable to entertain an alternative theory of gravity where the standard model vacuum decouples from gravity. Such a theory could be realized by coup…

Can someone explain, please. I stuck on some problem related to Michelson Morley experiment. The transverse signal travel time was initially calculated by Michelson as 2L/c and later corrected as if the signal travelled along the arms of a triangle: start point – mirror – new position of start point. This correction adds further to expected time difference of light signals: the transverse and the parallel to Michleson’s apparatus movement direction. This is also explained on animated graphic on Wikipedia http://en.wikipedia.org/wiki/Michelson_Morley_Experiment It is presented as a missile (red dot) travelling transverse to the direction of Michelson’s apparatus. I…

I have recently been reading a book called "The fabric of the cosmos" and it states that there is a relationship between speed in time and speed in space. It says that when stationary a body is moving only through time and not through space, seems obvious. Yet when the body begins to move time slows down slightly. It says that when travelling at the speed of light time stops. I was annoyed by the concept of "speed of time" how do we calculate a speed of time. I found out about a group of scientist that took a highly sensitive clock from London Heathrow to Sydney Australia in a Boeing 747. the time taken by the very accurate clock was less than the amount of time that othe…

There's not much argument that the Big Bang was 13.7 B/years ago. However, some think that the universe is infinate. How can this be? I think I understand that expansion accounts for a huge universe, but infinate is impossible, isn't it?. Please help!

As we all know from the genius if Albert Einstein that space and time are two parts of the same phenomena called Spacetime. Couldn't there be a 4th Spatial dimension of scale which is some kind of opposition to the temporal one. It seems that scale is ignored as a dimension as it is deemed irrelevant because of the other 3. If we imagine an object that we can zoom in towards the infinitely small or zoom out to the infinitely large we have a direction. Yes is difficult to imagine because we can not use a typical yard stick like a metre. This may help, imagine a black void with an object that appears to be moving towards you.. But is it or are you seeing under zoom. Im…

hello About Einestien's train example I can't get what it really does with the constancy of the speed of light , what would be the difference if , instead of two bolts , we have two balls thrown at the same angle ?! the observer in the train would still see the front ball first Or we are using light because it is what determines simultaneity in our eyes , which means when I see two balls passing by me at different times , I don't have to conclude they weren't thrown simultaneously but when I see Light doing that I will ? I need basically to know what difference does the constancy of the speed of light make here thanks in advance ;

We think no gravity force existing state is a gravity-free state. At these states we feel the same feeling? Are there any difference ?

I'm no expert in physics, I'm actually just applying for university. But I was reading an article about the speed of light and nothing can exceed it. I was wondering, could dark energy be responsible for this?

Does anyone know any scientists that are an adept at astrophysics style mathematical equations? I have a theory in my head that I need to prove or disprove but I lack the mathematical skills to express it. I need to collaborate with a math genius to get this equation out. Any credit for the end result will be split 80/20 since I have the theory and just need the math skills from anyone else (subject to change depending on contributions by both parties). Please let me know if anyone knows someone of this caliber, I would like to get started on this immediately! (possibility of a grand unified theory if successful)

I'm trying to reason about the effects of aberration when passing through the center of a spherical shell. Suppose we do this at near c and describe what we see when we pass through the center point of the sphere. Suppose we enter at the south pole heading for the north. - The sphere will appear perfectly spherical. Every great circle inscribed on its surface will appear as a perfect circle (though not all appear the same size). - The south pole will appear much closer than the north. The equator will appear "squished forward", so that the southern hemisphere looks much bigger than the northern. - We experience no aberration of gravity, so if we suppose that t…

If you were travelling at the speed of light,would the aberration effect make it look like all the light was coming towards you from a single point directly in front of you?

Extrapolating from non-relativistic formulae, the pressure (P) of a potentially-relativistic ideal gas, of particle density n, in N m-2, exerted as momentum perpendicular to some unit area, per unit time, is proportional to: [math]P \propto avg \left( n \times v_{\perp} \times p_{\perp} \right)[/math] [math]\longrightarrow n mc^2 avg \left( \gamma(\beta) \beta_{\perp}^2 \right)[/math] [math]\longrightarrow \frac{1}{3} n mc^2 avg \left(\gamma(\beta) \beta^2 \right)[/math] by isotropy, ultimately resulting from [math]<\beta^2> = <\beta_x^2 + \beta_y^2 + \beta_z^2> = 3 <\beta_{1D}^2>[/math]. Now, the "average" function requires integrat…

please see 2.jpg quantum of light hit in front of rocket wall ( Time T1) after this start back camera start work in T1 time and open chip only for 1 s quantum of light hit in camera chip ( Time T2) for more simply think please use R distance = 300 000 km What happen with camera and rocket in time between (T1,T2) What You think rocket velocity V can change point where camera and light have collision ( V rocket base on light quantum between time (T1,T2) brightness of picture has strong relation with R distance ( it is square function relation ) What You think rocket velocity V can change brightness of picture ? read 2.pdf can I compa…

I've been told that as a particle reaches the speed of light, the energy of the particle adds to the mass of the particle. I thought this would be a good place to start asking my questions, so here it goes: Would this apply to large objects as well? Why does energy add to mass?

To have charge property the charge transfer rate must be below C, the speed of light.

The optical Doppler effect is defined as follows: "A change in the observed frequency of light or otherelectromagnetic radiation caused by relative motion of the source and observer." The problem with this definition is the fact that the light is no longer connected to the source by the time the former is viewed (by observers). In fact, the source could be long gone or even utterly destroyed by the time its light is finally seen. I see this light as being analogous to a simple picket fence that is floating in space whilst observers in various (inertial) frames pass by. The fence does not (and cannot) change (no accelerations here, we …

Space can bend in various ways, but its often depicted as some flat plane that then somehow extends to a higher 3rd dimension in the presence of gravity, but that doesn't make sense, a black hole isn't a dip in a plane, a black hole is a black hole from every infinitesimally possible side, but how do you model that in 3 dimensions? If you use some typical cubic graph, it seems like the units between increments of space get smaller as they approach the event horizon, but isn't the fabric of space becoming infinitely warped? Or how do you even measure real "degrees" of curvature? By what angle in degrees is Earth's gravity bending space at 500 miles from the surface? And wh…

The Pauli Exclusion Principle says, roughly, that no two atoms are allowed to occupy the same energy states at the same time. The result of this is apparently that every atom must change its energy state in response to every other atom so as to obey this rule. The well known physicist Brian Cox likes to mention this, such as in his book The Quantum Universe: Everything that Can Happen Does Happen, to say that this implies that the energy states of atoms billions of light years away from one another must change their energy states simultaneously in obedience of this rule. In his book, he assures the reader that this does not violate the theories of relativity because infor…

What are the formula for applying Einstein's relativity in mathematics? Suppose, for example, that I wanted to resolve the twin paradox. Couldn't I do it by applying one of the formula of relativity theory and calculate how much time goes by for each twin, and therefore which one ages more? What would these formula be?