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sodium light

См. также в других словарях:

  • sodium light — noun : the yellow light of glowing sodium vapor consisting chiefly of two monochromatic portions of wavelength 5890 and 5896 angstroms corresponding respectively to the D2 and D1 Fraunhofer lines …   Useful english dictionary

  • Sodium vapor process — The sodium vapor process (occasionally referred to as yellowscreen) is a technique for combining actors and background footage, developed exclusively by The Walt Disney Company as an alternative to the more common bluescreen process.An actor is… …   Wikipedia

  • Sodium benzoate — Sodium benzoate …   Wikipedia

  • Sodium nitroprusside — Sodium nitroprusside …   Wikipedia

  • Sodium iodide — Identifiers CAS number …   Wikipedia

  • Light therapy — Intervention Bright light therapy is a common treatment for seasonal affective disorder and for circadian rhythm disorders. ICD 10 PCS …   Wikipedia

  • Light metals — are metals of low atomic weight. The cut off between light metals and heavy metals varies. Lithium, beryllium, sodium, magnesium and aluminum are almost always included. Additional metals up to nickel are often included as well. Metals heavier… …   Wikipedia

  • Light metal — Light metals are metals of low atomic weight. The cut off between light metals and heavy metals varies. Lithium, beryllium, sodium, magnesium and aluminium are almost always included. Additional metals up to nickel are often included as well.… …   Wikipedia

  • sodium-vapor lamp — [sō′dē əm vā′pər] n. a discharge lamp used for street lighting, fitted with two electrodes and filled with neon and sodium vapor, giving off a soft, yellow light …   English World dictionary

  • Light pollution — This article is about light pollution in the visible spectrum. For information on pollution in the radio spectrum, see radio spectrum pollution. This time exposure photo of New York City at night shows skyglow, one form of light pollution …   Wikipedia

  • Sodium vapor lamp — A sodium vapor lamp is a gas discharge lamp which uses sodium in an excited state to produce light. There are two varieties of such lamps: low pressure and high pressure . Low pressure sodium Low pressure sodium (LPS) lamps, also known as sodium… …   Wikipedia

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