category: physics

THE SOLUTION OF THE PROBLEM OF GRAVITATION ON THE BASIS OF THE GENERAL PRINCIPLE OF RELATIVITY

If we confine the application of the theory to the case where the gravitational fields can be regarded as being weak, and in which all masses move with respect to the co-ordinate system with velocities …

PHYSICAL MEANING OF GEOMETRICAL PROPOSITIONS BY ALBERT EINSTEIN

It is not difficult to understand why, in spite of this, we feel constrained to call the propositions of geometry “true.” Geometrical ideas correspond to more or less exact objects in nature, and these last

A Brief History of Cosmology and Galaxy Formation 1

Newton agreed with Bentley that providence had designed a universe of  infinite extent in which uniformly distributed stars stand poised in unstable  equilibrium like needles on their points (Harrison, 1987).

EPILOGUE: THE PROSPECT AHEAD

During at least the early part of the contracting phase, astronomers (if there are any) will be able to amuse themselves by observing both red shifts and blue shifts. Light from nearby galaxies would have …

Quantum particles :: When photons spice up the energy levels of quantum particles

Quantum particles :: When photons spice up the energy levels of quantum particles

The Physics of Sound 1

Sound lies at the very center of speech communication. A sound wave is both the end product of the speech production mechanism and the primary source of raw material used by the listener to recover …

An Introduction to Chaos Theory with the Lorenz Attractor

THEOREM OF THE ADDITION OF VELOCITIES. THE EXPERIMENT OF FIZEAU

On this point we are enlightened by a most important experiment which the brilliant physicist Fizeau performed more than half a century ago, and which has been repeated since then by some of the best …