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.
The mentality condition: Introspection is a process that generates, or is aimed at generating, knowledge, judgments, or beliefs about mental events, states, or processes, and not about affairs outside one's mind, at least not directly.ost philosophers hold that introspection yields something like beliefs or judgments about one's own mind, but others prefer to characterize the products of introspection as âthoughtsâ, ârepresentationsâ, âawarenessâ, or the like.