Xerography or electrophotography is a dry photocopying technique. Its fundamental principle was invented by Hungarian physicist PÃ¡l SelÃ©nyi and based on SelÃ©nyi's publications Chester Carlson applied for and was awarded U.S. Patent 2,297,691 on October 6, 1942. The technique was originally called electrophotography.
A retrospective, generally, is a look back at events that took place, or works that were produced, in the past. As a noun, retrospective has specific meanings in medicine, software development, popular culture and the arts. It is applied as an adjective, synonymous with the term retroactive, to laws, standards, and awards.
Retro style is style that is consciously derivative or imitative of trends, music, modes, fashions, or attitudes of the recent past. Contents. Definition. The term retro has been in use since the 1960s to describe on the one hand new artifacts that self-consciously refer to particular modes, motifs, techniques, and materials of the past. But on the other hand, many people (incorrectly) use the term to categorise styles that have been created in the past.