A System of Space-Time Co-ordinates

  title={A System of Space-Time Co-ordinates},
  author={John Lighton Synge},
THE common instruments of measurement proposed in theory and employed in practice for the co-ordination of physical events consist of rigid bars and clocks. The limitations of such methods are obvious. The erection of a rigid bar for the direct determination of the distance of the moon from the earth is inconceivable from a practical point of view, while it is a gross absurdity to speak of the measurement of molecular distances by means of rigid bodies. There is only one type of connecting-link… Expand
3 Citations
Equivalent Particle–Observers
MILNE1 and Page2 have attempted to build up relativistic theories without employing the concepts of rigid body or absolute clock. Now we can certainly abandon one of these concepts. The possibilityExpand
Frames and stresses in Einstein's quest for a generalized theory of relativity
  • O. Darrigol
  • Philosophy
  • Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics
  • 2019
Abstract We already have extraordinarily detailed and competent accounts of the genesis of general relativity, and a few suggestive summaries of these accounts. This article offers a medium-sized,Expand
Mesh and measure in early general relativity
Abstract In the early days of general relativity, several of Einstein׳s readers misunderstood the role of coordinates or “mesh-system” in ways that threatened the basic predictions of the theory.Expand