What determines the struc ture of space and time in the universe? According to Ein stein's
general theory of relativity, the geometric properties of space are related to the density of …

This paper explores the evolution of Einstein's understanding of mass and energy. Early on,
Einstein embraced the idea of a speed-dependent mass but changed his mind in 1906 and …

One need not be a poet or a mystic to find Blake's definition of energy more satisfying than
the defini tions given in textbooks on physics. Even within the framework of physical science …

In late 1915 Albert Einstein submitted his completed theory of general relativity to the
Prussian Academy of Sciences. 1 Following this it was as natural for him as it had been for …

The tremendous progress in astronomical observations over the past sixty years has
revealed a vast structured universe whose fundamental parti cles are galaxies, and clusters …

We suggest a paradigm that might allow for a nonanthropic solution to the cosmic
coincidence problem of why the density of vacuum energy and matter are nearly equal …

We ask about the nature and origin of the fundamental constants of astrophysics and particle
physics, notably the speed of light c, the gravitational constant G, Planck's constant h, and …

It has come to our notice (for example Warren, 1976) that there is quite widespread
misunderstanding about the interpretation of Einstein's famous equation E= mc2. It seems …

It is generally alleged that Einstein's theory leads to a finite but unbounded universe. This
allegation stems from an incorrect analysis of the metric for the point-mass when λ= 0. The …

The total energy of the universe has been calculated assuming that it is the sum of the
contributions from the matter part and gravitational part. The calculations involve the use of …