There would be no true motion pictures, however, until live action could be photographed spontaneously and simultaneously.
Although a contemporary observer of Muybridge's demonstration claimed to have seen "living, moving animals," such devices lacked several essentials of true motion pictures.
Thus, we were able to rule out certain models for channel gating, but the true motion has yet to be determined.
The true motion of a particle in a one-dimensional potential well is regular, since conservation of energy constrains the velocity ν each value of the coordinate x.
Clarke, following Newton, defined true motion as motion with respect to absolute space and claimed that the centre of mass of the solar system was at rest with respect to absolute space.
That is, true motion should be understood as absolute motion.
Hence, according to Descartes' own definition of true motion (as well as his explicit insistence), they have no true motion.
Newton defined the true motion of a body to be its motion through absolute space.
Under certain circumstances, we can detect a body's true motion by detecting its acceleration.
So the very idea of absolute or mathematical space helps to express what true motion is.
Indeed, how would we detect any body's true motion on this view?
