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The Hawthorne effect is a type of human behavior reactivity in which individuals modify an aspect of their behavior in response to their awareness of being observed. [1][2] The effect was discovered in the context of research conducted at the Hawthorne Western Electric plant; however, some scholars think the descriptions are fictitious.
Illuminati. The Illuminati (/ əˌluːmɪˈnɑːti /; plural of Latin illuminatus, 'enlightened') is a name given to several groups, both real and fictitious. Historically, the name usually refers to the Bavarian Illuminati, an Enlightenment -era secret society founded on 1 May 1776 in Bavaria, today part of Germany. The society's stated goals ...
The 26th General Conference on Weights and Measures (CGPM) redefined the candela in 2018. [10] [11] The new definition, which took effect on 20 May 2019, is: The candela [...] is defined by taking the fixed numerical value of the luminous efficacy of monochromatic radiation of frequency 540 × 10 12 Hz, [a] K cd, to be 683 when expressed in the unit lm W −1, which is equal to cd sr W −1 ...
Green electroluminescence from a point contact on a crystal of SiC recreates Round's original experiment from 1907. Close-up of a 1 watt red power led. Electroluminescence as a phenomenon was discovered in 1907 by the English experimenter H. J. Round of Marconi Labs, using a crystal of silicon carbide and a cat's-whisker detector.
Optical phenomenon. Optical phenomena are any observable events that result from the interaction of light and matter. All optical phenomena coincide with quantum phenomena. [1] Common optical phenomena are often due to the interaction of light from the Sun or Moon with the atmosphere, clouds, water, dust, and other particulates.
Effect of light from the rose window in Bari Cathedral, recurring in religious architecture to metaphorically allude to the spiritual light. [1]In theology, divine light (also called divine radiance or divine refulgence) is an aspect of divine presence perceived as light during a theophany or vision, or represented as such in allegory or metaphor.
The conservation and restoration of illuminated manuscripts is the care and treatment of illuminated manuscripts which have cultural and historical significance so that they may be viewed, read, and studied now and in the future. It is a specialty case of the conservation and restoration of parchment within the field of conservation and ...
Ram Chandra Shukla (4 October 1884 – 2 February 1941), [1] better known as Acharya Shukla, was an Indian historian of Hindi literature. He is regarded as the first codifier of the history of Hindi literature in a scientific system by using wide, empirical research [2] with scant resources. As an author he is best known for Hindi Sahitya Ka ...