دانلود رایگان کتابLectures on Classical Mechanics
Classical mechanics is a very peculiar branch of physics. It used to be considered the sum total of our theoretical knowledge of the physical universe (Laplace’s daemon, the Newtonian clockwork), but now it is known as an idealization, a toy model if you will.
The astounding thing is that probably all professional applied physicists still use classical mechanics. So it is still an indisp ensable part of any physicist’s or engineer’s education. It is so useful because the more accurate theories that we know of (general relativity and quantum mechanics) make corrections to classical mechanics generally only in extreme situations (black holes, neutron stars, atomic structure, superconductivity , and so forth).
Given that GR and QM are much harder theories to use and apply it is no wonder that scientists will revert to classical mechanics whenever possible.
So, what is classical mechanics?