stroboscope effect

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• Stroboscope — A stroboscope, also known as a strobe, is an instrument used to make a cyclically moving object appear to be slow moving, or stationary. The principle is used for the study of rotating, reciprocating, oscillating or vibrating objects. Machine… …   Wikipedia

• stroboscope — stroboscopic /stroh beuh skop ik, strob euh /, stroboscopical, adj. stroboscopy /streuh bos keuh pee/, n. /stroh beuh skohp , strob euh /, n. 1. a device for studying the motion of a body, esp. a body in rapid revolution or vibration, by making… …   Universalium

• Wagon-wheel effect — The wagon wheel effect (alternatively, or stagecoach wheel effect, stroboscopic effect) is an optical illusion in which a spoked wheel appears to rotate differently from its true rotation. The wheel can appear to rotate more slowly than the true… …   Wikipedia

• Gramophone record — A 12 inch (30 cm) 33⅓ rpm record (left), a 7 inch 45 rpm record (right), and a CD (above) A gramophone record, commonly known as a phonograph record (in American English), vinyl record (in reference to vinyl, the material most commonly used after …   Wikipedia

• Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

• Electron — For other uses, see Electron (disambiguation). Electron Experiments with a Crookes tube first demonstrated the particle nature of electrons. In this illustration, the profile of the cross shaped target is projected against the tube face at right… …   Wikipedia

• History of film — This article is about the history of cinema. For other uses, see History of photography. Years in film 1870s 1880s 1890s …   Wikipedia

• Crookes radiometer — The Crookes radiometer, also known as the light mill, consists of an airtight glass bulb, containing a partial vacuum. Inside are a set of vanes which are mounted on a spindle. The vanes rotate when exposed to light, with faster rotation for more …   Wikipedia

• Temporal aliasing — thumb|right|If the flash is synchronized with the motion the element appears motionlessTemporal aliasing is the term applied to a visual phenomenon also known as the stroboscopic effect. It also accounts for the wagon wheel effect , so called… …   Wikipedia

• Measuring instrument — Captain Nemo and Professor Aronnax contemplating measuring instruments in Twenty Thousand Leagues Under the Sea …   Wikipedia

• Trance — denotes a variety of processes, techniques, modalities and states of mind, awareness and consciousness. Trance states may occur involuntarily and unbidden.The term trance may be associated with meditation, magic, flow, and prayer. It may also be… …   Wikipedia