- General relativity, also known as the general theory of relativity and Einstein’s theory of gravity, is the geometric theory of gravitation published by Albert Einstein in 1915 and is the current description of gravitation in modern physics. General relativity generalizes special relativity and refines Newton’s law of universal gravitation, providing a unified description of gravity as a geometric property of space and time or four-dimensional spacetime. In particular, the curvature of spacetime is directly related to the energy and momentum of whatever matter and radiation are present. The relation is specified by the Einstein field equations, a system of second order partial differential equations.
- Berzerk (Atari 2600) online game (atarionline.org)
Berzerk is a multidirectional shooter video game that was initially released for arcades in 1980 and later for the Atari 2600 in 1982. The game was developed by Stern Electronics and designed by Alan McNeil. Berzerk places the player in the role of a human fighting his way through a maze of interconnected rooms filled with hostile robots. The objective is to destroy the robots while avoiding their shots, as well as the walls of the maze, which are electrified.