2008/10/27

Absolute Space or Relative

This quotation completely suggests Newton’s idea of absolute space:“Newton's mechanics concerns itself with the motions of particles under the action of forces. A particle is regarded as a material point; its motion is described by the position of that point in space as a function of time. It is assumed that the separate concepts of space and time are well understood, even though they defy adequate definition. Newton believed in an absolute space, but he also recognized that one cannot chart the motion of a body through this space. Instead, we define the position of one body with respect to another: "And so," as he wrote in the Principia, "instead of absolute places and motions, we use relative ones." “ French, “Special Relativity”I’ll be so pleased if you leave your note.

Relativistic Thermodynamics

In my 3 last lectures on special relativity and tons of questions that have been asked, we learn too many useful things. Now I want to suggest something about thermodynamics. In an inertial frame that moves with velocity v respect to another frame what we can say about thermodynamics variables of the system. Is T, P and V invariant from one frame to another?