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Halo
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- A ring or arc of coloured or white light that encircles the sun or moon when seen through a cloud of ice crystals. halos are produced by the refraction of light. the most commonly observed halo forms at a 22 degrees radius from the sun/moon. one at 46 degrees radius may also be seen.
- Венчик, ореол
- Halogen occultation experiment
- High-altitude large optics
- High-altitude low opening
- An extensive luminous ring including, the sun or moon, whose light, passing through the intervening vapour, gives rise to the phenomenon. halos are called lunar or solar, according as they appear round the moon or sun. prismatically coloured halos indicate the presence of watery vapour, whereas white ones show that the vapour is frozen.
- The halo is a part of an engagement ring that encircles the center stone. a halo can be any shape and is accented with diamonds or gemstones. halo designs accentuate the center stone making it appear half to one carat larger.
- A ring round the sun or moon from the refraction of light by ice crystals.
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Halation, английский
Spreading of light around a bright image on a fluorescent screen or developed film. halfwave
Halogen occultation experiment, английский
(спутниковый) галогенный прибор для регистрации загрязнений атмосферы
High-altitude large optics, английский
Программа исследований перспективной спутниковой системы раннего обнаружения с использованием крупногабаритных оптических конструкций (включая телевизионные и ик-си- стемы)
High-altitude low opening, английский
Затяжной прыжок с большой высоты нам high-altitude mission высотный полет нам high-speed automatic monitor быстродействующее автоматическое: контрольное устройство 278
Венчик; ореол;, русский
Толстый слой краски на границах точки растра, затемняющий ее;, русский
Ореол, русский
(франц . aureole, от лат. coronа aureola - золотой венец),..1) в религиозном изобразительном искусстве ореол вокруг головы человека - символ святости; ср. нимб...2) светлый круг, сияние вокруг светящегося, раскаленного предмета...3) в переносном смысле - блеск, сияние ("ореол славы").
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Refraction, английский
- The tendency of wave crests to become parallel to bottom contours as waves move into shallower waters. this effect is caused by the shoaling process which slows down waves in shallower waters.
- The change of direction or speed of light as it passes from one medium to another.
- Преломление, рефракция
- Process by which the direction of a radiation is changed as a result of changes in its velocity of propagation.
- The change of direction of propagation of any wave, such as an electromagnetic wave, when it passes from one medium to another in which the wave velocity is different. the bending of incident rays as they pass from one medium to another (e.g., air to glass).
- The change of the propagation direction when a wave comes from one medium into another one
- The directional shift or "bending" of light rays as they leave one density medium and enter a different one. or why your legs are short in water when viewed from the air.
- The bending of light as it passes between materials of different refractive index.
- 1. a change of direction of light rays as they enter a medium such as the eye 2. the measurement of the angle at which the light rays bend, as a test to see if someone needs to wear glasses
- A test to determine the best prescription to correct a refractive error (myopia, hyperopia, astigmatism).
- The change in direction of a light ray or a sound ray in passing from one medium to another. refectory
- Рефракция
- An inflection of the rays of light: that property of the atmosphere which bends the rays of light in their passage to the eye from a different density, and causes the altitude of heavenly bodies to appear greater than it really is, especially near the horizon. (see terrestrial refraction.)
- A wave phenomenon involving change of direction or bending. when a wave of any kind— light, sound, sonar, radar, etc.—passes between materials of different density, its behavior changes as it exits the old medium. and encounters the new one. there is reflection off the boundary and transmission into the new medium. the transmitted wave undergoes refraction when it approaches the boundary obliquely.
- The bending of light as it passes through a diamond or gemstone.
- Bending of light waves, which occurs when a light wave passes from one medium to another
- Change in direction of an acoustic wave as the ultrasonic beam passes from one medium into another having different acoustic speeds. a change in both direction and mode occurs at acute angles of incidence. at small angles of incidence, the original mode and a converted mode may exist simultaneously in the second medium.
- Reorientation of radiation’s path by the medium through which it passes.
- Deflection of a wave due to a change in its speed as it passes from one material to another. see also refractometer.
- Change in direction of an acoustic wave as the ultrasonic beam passes from one medium into another having different acoustic speeds. a change in both direction and mode occurs at acute angles of incidence. at small angles of incidence, the original mode and a converted mode may exist simultaneously in the second medium.7
Occultation, английский
One heavenly body eclipsing another; but in nautical astronomy it is particularly used to denote the eclipses of stars and planets by the moon.
Experiment, английский
- What distinguishes an experiment from an observational study is that in an experiment, the experimenter decides who receives the treatment.
- Эксперимент
- A scientific test conducted under set conditions the scientists did some experiments to try the new drug on a small sample of people.
- N экспе- римент (см. тж. test) associative ~ псхлнгв. ассоциативный экспе- римент psycholinguistic ~ психолингвистический экс- перимент
- Эксперимент; опыт, опытное исследование
Phenomenon, английский
- 1. a fact or situation which can be observed 2. someone or something that is considered to be extraordinary and marvellous
- A condition with various possible causes in which the blood supply to the fingers and toes is restricted and they become cold, white and numb. also called dead man’s fingers, vasospasm [described 1862. after maurice raynaud (1834–81), french physician.] rbc rbc abbr red blood cell rcgp rcgp abbr royal college of general practitioners rcn rcn abbr royal college of nursing rcog rcog abbr royal college of obstetricians and gynaecologists rcp rcp abbr royal college of physicians
- In diabetes mellitus, a swing to a high level of glucose in the blood from an extremely low level, usually occurring after an untreated insulin reaction during the night. it is caused by the release of stress hormones to counter low glucose levels.
- Явление; эффект
Engagement, французский
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Kalifeldspath, английский
Halation, английский
Spreading of light around a bright image on a fluorescent screen or developed film. halfwave
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