Recent content by WeirdUniverse

You mean the universe is actually absolute, but it appears relative to us?

But If they have different physics phenomena in different inertial frames, doesn't mean that we would know if we are moving or not?

I'm confused, I think I'll analyze it mathematically later on. However, what could potentially refute the conclusions drawn from my second proof?

Yes, it does because both objects were added with the same velocity so the difference in their velocities don't change. But I'm not talking about their collisions, If we push a box, either the box gained the acceleration of a or the rest masses gained the acceleration of -a as we have...

Why are the a's different? They must be the same. if A moves with velocity 'v' relative to B, then from A's perspective, B also appears to move with velocity v.

Consider an object 'O' with mass 'm' initially at rest in space, observed from our point of view. When 'O' is accelerated to a vector 'a', two scenarios arise: either 'O' moves relative to us, leading to a force of F = ma acting upon it, or the rest of the universe (with a mass of M-m) appears...

Because that's what Galilean relativity about, How can we discern whether we are in motion or if the world moves beneath our feet?

Then how do I approach solving this question "it requires less energy to impart acceleration to an object than to the entirety of the universe"?

Why acceleration 0? That's not true because from the object's viewpoint, the universe must have an acceleration of -a equal to its acceleration.

I'm still wondering, But If you replace it with (a) instead, M will equal to 2m which is wrong because the total mass does not depend on a single object. (-a) might make sense if we dive a little closer to negative masses. Another answer is because observers moving at constant velocities...

it requires less energy to impart acceleration to an object than to the entirety of the universe, This would break the principle of relativity since the amount of energy to move an object should be the same as the amount of energy to move the rest of the universe. This observation implies a...