New posts in Inertial Frames

Is Lorentz transform a tensor?

Why didn't Lorentz conclude that no object can go faster than light?

Deriving special relativity free particle Lagrangian using infinitesimal boost?

What is physically different about a moving vs still object in space?

If photons don't experience time, does that mean time is a consequence of mass?

Why does speed of light have to be constant?

What's the speed of light when viewed from the side?

Paradox in the definition of work

Inertia on a rotating disc?

Hydrogen atom, what's the wave equation for the atom's nucleus?