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61electromagnetic radiation — Physics. radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x rays, and gamma rays. [1950 55] * * * Energy propagated through free space or through a material medium in the form of… …
62Computer security compromised by hardware failure — is a branch of computer security applied to hardware. The objective of computer security includes protection of information and property from theft, corruption, or natural disaster, while allowing the information and property to remain accessible …
63PlayStation 3 accessories — Various accessories for the PlayStation 3 video game console have been produced by Sony. These include controllers, audio and video input devices like microphones and video cameras, and cables for better sound and picture quality. Contents 1 Game …
64photography, history of — Introduction method of recording the image of an object through the action of light, or related radiation, on a light sensitive material. The word, derived from the Greek photos (“light”) and graphein (“to draw”), was first used in the… …
65iPod Classic — (6th generation) Manufacturer Apple Inc. Retail availability October 23, 2001 – present Media Hard drive …
66Motorola RAZR — (  /ˈreɪz …
67Features removed from Windows Vista — While Windows Vista contains many new features, a number of capabilities and certain programs that were a part of Windows XP are no longer present or changed, resulting in the removal of certain functionality. The following is a list of features… …
68Low-energy electron diffraction — (LEED) is a technique used to characterize the structures of surfaces.History =Davisson and Germer s discovery of electron diffraction= The development of electron diffraction was closely linked to the progress of quantum mechanics and atomic… …
69Charge-coupled device — A specially developed CCD used for ultraviolet imaging in a wire bonded package. A charge coupled device (CCD) is a device for the movement of electrical charge, usually from within the device to an area where the charge can be manipulated, for… …
70Gravitational wave — In physics, a gravitational wave is a fluctuation in the curvature of spacetime which propagates as a wave, traveling outward from a moving object or system of objects. Gravitational radiation is the energy transported by these waves. Important… …
