In this paper it is argued that a Carter–Penrose diagram can be viewed as a differential space.

designers draw diagrams to think about architectural concepts and design concerns. scientists are interested in programming computers to recognize and interpret design diagrams to deliver appropriate tools for the design task at hand. researchers conducted empirical studies to find out if designers share drawing conventions when designing. the experiment results show that designers use differen...

Abstract The way from the path integral to Feynman diagrams is sketched. emphasis put on decrease of complexity in this process, infinite-dimensional integrals down apparent simplicity child’s play. On other hand, also subsequent increase when using make realistic physical predictions described, thus illustrating dialectic between and clarity diagrams, their practical applications.