Definition of Virtual focus. Meaning of Virtual focus. Synonyms of Virtual focus

Here you will find one or more explanations in English for the word Virtual focus. Also in the bottom left of the page several parts of wikipedia pages related to the word Virtual focus and, of course, Virtual focus synonyms and on the right images related to the word Virtual focus.

Definition of Virtual focus

Virtual focus
Virtual Vir"tu*al (?; 135), a. [Cf. F. virtuel. See Virtue.] 1. Having the power of acting or of invisible efficacy without the agency of the material or sensible part; potential; energizing. Heat and cold have a virtual transition, without communication of substance. --Bacon. Every kind that lives, Fomented by his virtual power, and warmed. --Milton. 2. Being in essence or effect, not in fact; as, the virtual presence of a man in his agent or substitute. A thing has a virtual existence when it has all the conditions necessary to its actual existence. --Fleming. To mask by slight differences in the manners a virtual identity in the substance. --De Quincey. Principle of virtual velocities (Mech.), the law that when several forces are in equilibrium, the algebraic sum of their virtual moments is equal to zero. Virtual focus (Opt.), the point from which rays, having been rendered divergent by reflection of refraction, appear to issue; the point at which converging rays would meet if not reflected or refracted before they reach it. Virtual image. (Optics) See under Image. Virtual moment (of a force) (Mech.), the product of the intensity of the force multiplied by the virtual velocity of its point of application; -- sometimes called virtual work. Virtual velocity (Mech.), a minute hypothetical displacement, assumed in analysis to facilitate the investigation of statical problems. With respect to any given force of a number of forces holding a material system in equilibrium, it is the projection, upon the direction of the force, of a line joining its point of application with a new position of that point indefinitely near to the first, to which the point is conceived to have been moved, without disturbing the equilibrium of the system, or the connections of its parts with each other. Strictly speaking, it is not a velocity but a length. Virtual work. (Mech.) See Virtual moment, above.

Meaning of Virtual focus from wikipedia

- and Virtual Skipper. On June 25, 2010, it was announced that Focus had acquired the Cities XL franchise from now-defunct Monte Cristo. In 2012, Focus began...
- collection of focus points of light rays coming from the object. A real image is the collection of focus points made by converging rays, while a virtual image...
- Virtual reality (VR) is a simulated experience that employs 3D near-eye displays and pose tracking to give the user an immersive feel of a virtual world...
- Focus.com was a business focused social networking platform and source of technology expertise. Focus members could freely access expert research in diverse...
- with the Virtual Boy software. The Virtual Boy was pushed to market in an unfinished state in 1995 to focus on the Nintendo 64. The Virtual Boy was panned...
- In computing, a virtual machine (VM) is the virtualization or emulation of a computer system. Virtual machines are based on computer architectures and...
- reflect light outwards, therefore they are not used to focus light. Such mirrors always form a virtual image, since the focal point (F) and the centre of...
- Expert" "Focus Groups vs. Online, " Advertising Age "Designing and Conducting Virtual Focus Groups," Quirk's Marketing Research Review "Online Focus Groups:...
- ブイチューバー, Hepburn: BuiChūbā) or virtual YouTuber (バーチャルユーチューバー, bācharu YūChūbā) is an online entertainer who uses a virtual avatar generated using computer...
- loosely defined term referring to virtual worlds in which users represented by avatars interact, usually in 3D and focused on social and economic connection...