What happens if you get to the edge of the universe?

You would see the same as you would in ordinary space. The universe expands at the speed of light, so light would not be able to bounce off the “edge of the universe” in order for it to be reflected back into your eyes.

Does the universe have a rest frame?

“This postulate of relativity implies that there is no resting frame in our Universe; otherwise one would be able to determine which inertial frame is stationary and which frame is moving.” “This means that the vacuum in our Universe must be an empty space and thus cannot serve as a reference system.”

What is an absolute frame?

Absolute Frame Definition Absolute frame or frame of reference is just a fixed frame, which as a reference taken to observe the behavior of other frames (objects) and will always remain at rest with respect to time.

Is an absolute frame of reference possible if not why?

No there isn’t any absolute reference frame with respect to the “Laws of Physics” Or conversely, we are interested only in those laws which are not specifically valid in a particular reference frame. Special relativity theory arises when any two inertial frames are equivalent.

How long would it take to travel to the other side of the universe?

It’s Space Day, but traveling the vast entity that is space would take far longer than a single day. The nearest galaxy: 749,000,000 (that’s 749 million) years. The end of the known universe: 225,000,000,000,000 years (that’s 225 trillion) years.

Is the CMB an absolute reference frame?

There are many different such frames, all moving with some constant speed relative to each other. But one of them can be picked out explicitly as the one with no CMB dipole pattern on the sky. And that’s the absolute (expanding) rest frame!

Is there a preferred frame of reference?

There are no preferred frame of reference as mentioned by Prof. Toth.

What is absolute reference physics?

The absolute reference system is the framework of material in which any activity in the universe has begun. Also, each inertial reference system is accompanied by a peculiar electromagnetic wave due to the structure of matter. The physics of the absolute system of reference is based on three basic principles.

What is an absolute inertial frame of reference?

Today the notion of “absolute space” is abandoned, and an inertial frame in the field of classical mechanics is defined as: An inertial frame of reference is one in which the motion of a particle not subject to forces is in a straight line at constant speed.

How does special relativity differs from general relativity?

The difference between general relativity and special relativity is that general relativity is related to gravity and acceleration, whereas special relativity is related to speed and time. General relativity theory is a theory that was published by Albert Einstein.