How does this experiment relate to how galaxies in our universe move in relation to one another?

I just did a quick experiment.





Blew up a balloon, 3 times Adding more air each time.





Drew 3 dots in different places on the balloon, and measured the circumference of the balloon and measured distances between the three dots. The circumference of the balloon increased a lot each time air was put into, but the distance between points only increased slightly, do you know how this relates how galaxies move in relation to one another?





Thanky kindly :)How does this experiment relate to how galaxies in our universe move in relation to one another?
This experiment is just like space expansion.


You should know that space is expanding, and accelerating in its expansion. The actual fabric of space-time is expanding, carrying galaxies with it. As space expands galaxies get farther apart. Galaxies farther away from the milky move away faster than galaxies closer.





Try this experiment again.


Blow up the balloon just a little. Draw a little red dot to represent the milky way galaxy. And draw other black dots to represent other galaxies. put some galaxies closer to the milky way, and other farther. Now blow up the balloon. You'll notice how each galaxy is moving away from the other, none are moving towards each other. Now blow the balloon a little more. Notice how the galaxies you put as farther away, have covered moved away even farther than the galaxies you put as close to the milky way.