If everywhere in the universe is expanding and accelerating away, is that inside us too?

Question

How does this relate to gravity if the earth and even the inside of creatures are expanding away from themselves along with the rest of the universe?

66, in this case I think it is. I don't have any reason not to think that the expansion of space is constant at all scales. If we are expanding then there is some form of acceleration. I wonder if this could be part of gravity.

Answer 1

Correct.

All of space is expanding, so every point in space is moving away from every other point in space, including inside our own bodies. However, the rate at the macroscopic level is so minute that it is not noticeable or even measurable, and it is totally overcome by local gravitational and atomic field strengths.

A good way to think of it is like this-

Imagine you had 10 one centimetre cubes in front of you, arranged in a line. That line of cubes would be 1 cm wide and 10 cm long.
Now imagine, due to cosmological expansion, that each of those cubes got bigger by 1 billionth of a centimetre, because of the 'space' they occupy expanding. The width of the line of cubes would now be bigger by 1 billionth of a centimetre, but the length would be 10 billionths of a centimetre longer, because each cube has expanded by one billionth of a centimetre. (Actually, matter doesn't expand, but ignore this for the sake of the thought experiment!)

Now imagine the line of cubes was 1 billion cubes long. The line of cubes would be 1 centimetre longer, because 1 billion cubes have expanded by a billionth of a centimetre.

You can apply this reasoning to empty space, each tiny 'bit' of space is expanding at the same rate, so the further away an object is, the more space appears between it and us over time. After a bit of thought, you can see that this explains why galaxies appear to be moving away from us at a higher speed the further away they are.

This is by no means a definitive analysis, but it gives a good mental picture of what's happening.
To answer your question then, cosmological expansion does not have any effect on us here on earth.

The most significant reason for this is that the gravitational field of the Sun and the Milky Way are stronger than the local gravitational field of the universe. This means that the dynamics of spacetime in our solar system and Milky Way are dominated by the curvature produced by these local masses. As an example, if the cosmological expansion could be detected in our solar system, its 60 kilometers/sec/megaparsecs would translate into a space dilation rate of 6 centimeters per second per parsec, or for a scale inside our solar system, 0.0002 centimeters/sec per billion kilometers. In 100 years this stretching would amount to 6.2 kilometers at the solar system scale, and 186,000 kilometers at the interstellar scale. Neither of these are measurable, nor is there any physical reason from general relativity why they should even be present given the strength of the local sources of gravity which completely overpower the effect.

Answer 2

area is a quantum entity and can't advance. interior the early universe area replaced into at maximum density,as count number emerged the density lessened. A quanta of area won't be able to be divided or it is going to bypass out of life Galaxies are an end degree interior the evolution of a universe,this is the galactic middle that strategies count number and extra reduces the density of area. because the encircling area strikes to the middle to maintain minimum density,gentle issuing from the galaxy is shifted in route of the red. This red shift is interpreted because the galaxy accelerating away besides the indisputable fact that the red shift will be contemporary no count number what section the galaxy replaced into seen from. The farthest galaxies that we see do no longer exist to-day,the enlargement has stopped.

Answer 3

No. You may disregard all prior answers. The expansion is only occurring on a very large scale today. Gravitationally bound objects like galaxies and even clusters of galaxies are not expanding because their mutual gravitational attraction keeps them together. Shortly after the big bang, gravitational self-attraction within regions of slightly higher density (due to random quantum fluctuations) caused spontaneous clumping to occur within an overall universal expansion. Those clumps later condensed and merged into the galaxies.

Answer 4

I am afraid your understanding is different from mine. Every atom is not moving away from every other atom. The stars are moving away from each other and each star, along with its planets is relatively stable. And the space that is created by the expansion of the universe (stars moving away from each other) is being filled by new stars and dark matter and dark energy. The picture is quite complicated and I won't pretend to understand all of it. But I am not aware of our own bodies expanding like that.

Answer 5

Is Every Point in The Universe a Microcosm of the Whole of Creation?

Answer 6

I like the way you think.