History: Einstein was no lone genius

Was Einstein 100% Right ? *

The confrontation between General Relativity and experimental results, notably binary pulsar data, is summarized and its significance discussed. The agreement between experiment and theory is numerically very impressive. However, some recent theoretical findings (existence of non-perturbative strong-field effects, natural cosmological attraction toward zero scalar couplings) suggest that the pr...

Genius explained

The physician's art is the catalogue of an exhibition of over 100 images and other objects from the collections of four North Carolina medical schools. In a finely-judged Preface, structured around specific examples shown, Martin Kemp points out some of the historical issues involved in the study of medical imagery and artifacts, beginning with the problem of what "realism" means in the context...

General relativity at 75: how right was einstein?

The status of experimental tests of general relativity is reviewed on the occasion of its 75th anniversary. Einstein's equivalence principle is well supported by experiments such as the Eötvös experiment, tests of special relativity, and the gravitational redshift experiment. Tests of general relativity have reached high precision, including the light deflection and the perihelion advance of Me...

Equivalence 5 What was Einstein ' s principle of Equivalence ?

Sherlock Holmes Was in No Danger

An important ingredient in understanding such sentences is resolving the question of: level in/of what? protection from what? what sort of documents? danger from what? Each of these is an example coming from novels, television commercials, and news reports. In the first instance, it is from a commercial for a brand of computers. In the commercial, which is pushing the most recent version of tha...