total vacuum
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Total external reflection — is an optical phenomenon where electromagnetic radiation (e.g. visible light) can, at certain angles, be totally reflected from an interface between two media of different indices of refraction (see Snell s law). Total internal reflection occurs… … Wikipedia
Total enclosure fetishism — is a form of sexual fetishism whereby a person becomes aroused when having entire body enclosed in a certain way, hence the name.ExamplesSome total enclosure activities include: * In rubber fetishism, rubber suits, gas masks and similar garments… … Wikipedia
Vacuum tube — This article is about the electronic device. For experiments in an evacuated pipe, see free fall. For the transport system, see pneumatic tube. Modern vacuum tubes, mostly miniature style In electronics, a vacuum tube, electron tube (in North… … Wikipedia
Vacuum variable capacitor — A vacuum variable capacitor uses a high vacuum as the dielectric instead of air or other insulating material. This allows for a higher voltage rating and/or capacitance value using a smaller total volume. In addition to the higher voltage rating… … Wikipedia
Vacuum Chronometer Corp. — 1952 saw the realisation of a new concept of watch case ecapseling a Swiss automatic movement under a vacuum of air of at least 80% giving birth to a very special watch, the Vacuum Chronometer, known for its incredible resistance to mpostire,… … Wikipedia
Total internal reflection — The larger the angle to the normal, the smaller is the fraction of light transmitted, until the angle when total internal reflection (blue line) occurs. (The color of the rays is to help distinguish the rays, and is not meant to indicate any… … Wikipedia
vacuum — I (New American Roget s College Thesaurus) n. void, vacancy, emptiness, nothingness; space. See absence, nonexistence. II (Roget s IV) n. Syn. emptiness, rarefaction, void, vacuity, space, exhaustion. v. Syn. vacuum clean, clean, sweep, sweep up … English dictionary for students
Manifold vacuum — Not to be confused with Vacuum manifold. Manifold vacuum, or engine vacuum in an internal combustion engine is the difference in air pressure between the engine s intake manifold and Earth s atmosphere. Manifold vacuum is an effect of a piston s… … Wikipedia
False vacuum — In quantum field theory, a false vacuum is a metastable sector of space that appears to be a perturbative vacuum, but is unstable due to instanton effects that may tunnel to a lower energy state. This tunneling can be caused by quantum… … Wikipedia
Ultra high vacuum — (UHV) is the vacuum regime characterised by pressures lower than about 10−7 pascal or 100 nanopascals ( 10−9 torr). UHV requires the use of special materials in creating the vacuum system, extreme cleanliness to maintain the vacuum system, and… … Wikipedia
QCD vacuum — The QCD vacuum is the vacuum state of quantum chromodynamics (QCD). It is an example of a non perturbative vacuum state, characterized by many non vanishing condensates such as the gluon condensate or the quark condensate. These condensates… … Wikipedia
