New posts in Physical Constants

Is the Planck length the smallest length that exists in the universe or is it the smallest length that can be observed?

Free parameters in the Standard Model

Can someone explain Planck's constant simply?

Can the gravitational constant $G$ be calculated theoretically?

Is speed of light and sound rational or irrational in nature?

Can all laws of physics derived by a single or lists of more general laws?

Why isn't it $E \approx 27.642 \times mc^2$?

Why didn't we replace our SI units with a better system?

How can Planck units be consistent with conflicting dimensions of mass?

The famous drop of $c$