ABSTRACT
At the beginning of the 20th Century new branches of physics were developed to describe two extreme realms of reality: the very small and the very fast. The special theory of relativity was developed around 1905 and describes physical systems traveling at near the speed of light. Likewise, quantum mechanics was developed starting around 1900 to describe systems at the atomic level. Both theories radically transformed our understanding of science and philosophy, and now affect our everyday life.
