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Roof prism. A roof pentaprism used in Single-lens reflex cameras; the lower right face is the roof ( dach ). A roof prism, also called a Dachkanten prism or Dach prism (from German: Dachkante, lit. "roof edge"), is a reflective prism containing a section where two faces meet at a 90° angle, resembling the roof of a building and thus the name.
Reverse psychology is a technique involving the assertion of a belief or behavior that is opposite to the one desired, with the expectation that this approach will encourage the subject of the persuasion to do what is actually desired. This technique relies on the psychological phenomenon of reactance, in which a person has a negative emotional reaction to being persuaded, and thus chooses the ...
The Stanford prison experiment ( SPE) was a psychological experiment conducted in August 1971. It was a two-week simulation of a prison environment that examined the effects of situational variables on participants' reactions and behaviors. Stanford University psychology professor Philip Zimbardo led the research team who administered the study.
Porro prisms are most often used in pairs, forming a double Porro prism. A second prism rotated 90° with respect to the first, is placed such that light will traverse both prisms. The net effect of the prism system is a beam parallel to but displaced from its original direction, with the image rotated 180°. A double Porro system provides four internal reflections. Since the light is ...
Posthumanism or post-humanism (meaning "after humanism " or "beyond humanism") is an idea in continental philosophy and critical theory responding to the presence of anthropocentrism in 21st-century thought. [1] Posthumanization comprises "those processes by which a society comes to include members other than 'natural' biological human beings who, in one way or another, contribute to the ...
Prism was the brainchild of musician-producer Bruce Fairbairn, and comprised members from two local Vancouver bands, Sunshyne and Seeds of Time. Fairbairn was originally a trumpet player in Sunshyne, a jazz-rock band, in the early 1970s. Around 1974, the band switched their format to blues-rock by recruiting guitarist Lindsay Mitchell from Seeds of Time as their frontman. The Seeds of Time ...
Morphological psychology recognizes that the mind is in a constant state of flux, being shaped and shaping at the same time. It is a psychological theory that considers our mental workings as a dynamic system. Morphology asserts that we are in a constant state of change throughout our life. In every millisecond we experience entire psychological worlds. The only constant in life is change, and ...
An optical prism is a transparent optical element with flat, polished surfaces that are designed to refract light. At least one surface must be angled — elements with two parallel surfaces are not prisms. The most familiar type of optical prism is the triangular prism, which has a triangular base and rectangular sides. Not all optical prisms are geometric prisms, and not all geometric prisms ...