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H. Ohanian | Semantic Scholar

Essential Relativity: Special, General, and Cosmological

1 The Rise and Fall of Absolute Space.- 1.1 Definition of Relativity.- 1.2 Newton's Laws.- 1.3 The Galilean Transformation.- 1.4 The Set of All Inertial Frames.- 1.5 Newtonian Relativity.- 1.6…

Principles of Physics

To motivate students and to maintain their enthusiasm, the examples from sports, biology, medicine, and everyday life are drawn on, chosen to match the background and special interests of the students.

What is spin

According to the prevailing belief, the spin of the electron or of some other particle is a mysterious internal angular momentum for which no concrete physical picture is available, and for which…

A Journey into Gravity and Spacetime

Great men, great ideas from fall to float interval - revelation that all of space is ours boomerang through the Earth tides - the grip of mass on spacetime momenergy - the grip of spacetime on mass…

The role of dynamics in the synchronization problem

Is Einstein’s procedure for the synchronization of clocks in Special Relativity merely a convention about the one-way speed of light? This issue was first raised in the 1920s by H. Reichenbach, who…

Einstein's Mistakes: The Human Failings of Genius

Although Einstein was the greatest genius of the twentieth century, many of his groundbreaking discoveries were blighted by mistakes, ranging from serious errors in mathematics to bad misconceptions…

The black hole as a gravitational ``lens''

We discuss the ‘‘images’’ formed when the light from a distant source suffers a large deflection in the intense gravitational field in the immediate vicinity of a Schwarzschild black hole. The light…