Rotation is absolute, linear motion is relative?

[jbriggs444]

How do you know all this without experiments?

It's Newtonian mechanics, not rocket science. It works quite well. Conservation of angular momentum is well confirmed experimentally. Galileo did a lot of the experimental work.

 

[vanhees71]

Rocket science is a great deal also Newtonian mechanics ;-).

 

[John Mcrain]

It's Newtonian mechanics, not rocket science. It works quite well. Conservation of angular momentum is well confirmed experimentally. Galileo did a lot of the experimental work.

What physics field is consider the hardiest? Does this frames questions what we are talking here is valid in micro world, atom and smaller particels?

 

[John Mcrain]

Even I never study physics or math, I feel stupid when I see that my questions are so easy and trivial for you here...

 

[berkeman]

Even I never study physics or math, I feel stupid when I see that my questions are so easy and trivial for you here...

You should not feel stupid. Instead, enjoy the learning and keep asking questions. We all had to learn this stuff sometime...