As Newton informs us in his first two laws of motion: an object in an

inertial frame of reference either remains at rest or continues to move at a constant velocity unless acted on by a force, and that Force = Mass x Acceleration.

The first, Poincare-Einstein (P-E) "internal" synchronization, based on the axiom of isotropic one-way speed of light in any

inertial frame (i.

In order to solve the alignment problem on a rocking base, the method is to use the

inertial frame as a transitional coordinate to realize the initial alignment by using the gravity acceleration information [11-14].

Nevertheless the speed of light is always the same, whether in an

inertial frame or in an accelerating rocket.

Newton's single Cosmic

inertial frame resisted the acceleration of matter (F = ma) but allowed it to move at any uniform velocity (in inertial motion) without resistance.

When Q is present, any event which is simultaneous within Q's

inertial frame of reference, will also be at the center of a light cone with the same or very similar ppf.

O] from

inertial frame to the local frame x-y attached to the end-effector k; see Fig.

x] where [omega] represents the part of angular rate vector of the body frame with respect to the

inertial frame projected to the x axis of body frame).

For a world without gravity, he discusses non-relativity for relativists, the invariance of physical law under change of

inertial frame of reference, using and understanding the Lorentz transformation, the measure of space-time, and electromagnetic theory in space-time.

The remainder of this article is, will be, or has been, depending on the reader's

inertial frame, divided into three sections.

The joint orientation with respect to

inertial frame is defined by:

The ground plane is described in the

inertial frame {[f.