Virtual

The virtual is a concept applied in many fields with somewhat differing connotations, and also denotations. Colloquially, 'virtual' has a similar meaning to 'quasi-' or 'pseudo-' (prefixes which themselves have quite different meanings), meaning something that is almost something else, particularly when used in the adverbial form, e.g. "He's virtually my boyfriend."

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In physics, one may speak of theoretical virtual particles, - particles which exist for period of time which is not enough to mathematically define their energy. Due to wave nature of all particles their energy and time of existence (as well as position and momentum) are entangled by mathematical definition called Fourier transform. This entanglement results in Heisenberg uncertainty principle - central principle of quantum mechanics.

Physics: Physics (from the Greek, φυσικός (phusikos), "natural", and φύσις (phusis), "nature") is the science of the natural world in the broadest sense, dealing with matter and energy and the fundamental forces of nature that govern the interaction...

Theoretical: REDIRECT Theory...

Virtual particles: REDIRECT virtual_particle...

Virtual related Images and Photos (experimental)

Virtual Grey and White

Vocaloid Virtual-On Fei Yen Miku Hatsune Action Figure

Cube Laser Virtual Keyboard for iPad & iPhone