PPT Slide
It turns out that the surface of the earth itself
isn’t an inertial reference frame! (Can you see why?)
But the non-inertial effects
are fairly small, so from now
on in this class we will treat
the surface of the earth as inertial
It turns out that there is no “preferred” or special
inertial frame in the whole universe. The laws of physics
will be the same in all inertial frames!