Introduction to general relativity in a setting with comparatively strong gravitational fields. This has become possible thanks to precision observations of binary pulsars. In such a star system, two highly compact neutron stars orbit each other. At least one of them is a pulsar – an astronomical object that emits a tight beam of radiowaves. These beams strike the Earth at very regular intervals, similarly to the way that the rotating beam of a lighthouse means that an observer sees the lighthouse blink, and can be observed as a highly regular series of pulses. General relativity predicts specific deviations from the regularity of these
Racing the Beam speed electron beam across the screen. "Racing the Beam" discusses the history of the VCS platform and the design decisions that impacted the types of games that could be written for it. Specific titles such as "Combat", "Pitfall!" and "Yars' Revenge" are analyzed from a technical and cultural perspective. "Racing the Beam" is the first in a series of books on early video game platforms, and has been cited by modern Atari 2600 enthusiasts as an inspiration for attempting to write new games for the platform. Racing the Beam Racing the Beam: The Atari Video Computer System is a book