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Solstice
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- Either of two days when the sun`s position overhead at noon is farthest north or south of the equator. these dates are june 21 for the northern hemisphere summer solstice, and about december 22 for the northern hemisphere winter solstice. the solstices are reversed for the southern hemisphere, with the wi
- Either of the two times of the year when the sun reaches its maximum declination (cf. equinox).
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Солнцестояние, русский
(летнее и зимнее) , моменты, когда высота солнца над горизонтом в полдень соответственно максимальна или минимальна. солнцестояние соответствует наибольшему (летнее) и наименьшему (зимнее) значению склонения солнца (см. экваториальные координаты). происходит 21-22 июня и 21-22 декабря.
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Hemisphere, английский
- One of names of air space under the circus cupola; a space in which aerial acts are performed.
- Half of a sphere
- N анат. полушарие (го- ловного мозга и мозжечка ) asymmetry cerebral ~ полушарие головного мозга left ~ левое полушарие (ант. right ~) right ~ правое полушарие (ант. left ~)
- Half the surface of a globe. the celestial equator divides the heavens into two hemispheres—the northern and the southern.
- Полусфера
Declination, английский
- N грм. склонение (тж. declension)
- Of a celestial object, is the arc between its centre and the equinoctial: with the sun, it is its angular distance from the equator, either north or south, and is named accordingly.
- In navigation, the angular distance of a heavenly body north or south of the celestial equator.
- The angular change in the course of a borehole induced by deflection techniques, usually expressed in degrees.
- The angular difference between true north and the direction in which a magnetic needle points on a compass.
- Sometimes a synonym for inclination. see
- Склонение; магнитное склонение ~ of needle склонение магнитной стрелки
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Equinox, английский
- Either of two occasions during the year when the apparent sun`s path crosses the plane of the earth`s equator. also the date when the sun is directly overhead at noon on the equator, occurring on or around both march 21 and september 22, the former is the vernal equinox and the latter the autumnal equinox
- Either of two times a year, midway between the solstices, when the lengths of night and day are approximately equal.
- The two times of the year when the sun crosses the equator and night and day are of equal length; occurring around march 20 or 21 (spring equinox) and september 22 or 23 (fall equinox).
- The two times of the year when the sun crosses the equator and night and day are
Anomaly, английский
- Difference between a prevailing weather condition and long-term average for that conditions.
- Any striking deviation from typical or normal. anomalous retinal correspondence (arc) – a type of retinal projection, occurring frequently in strabismus, in which the foveae (center of the retina that produces the sharpest eyesight) of the two eyes do not facilitate a common visual direction; the fovea of one eye has the same functional direction with an extrafoveal (non-fovea) area of the other eye. ansi (american national standards institute) – eyewear that meets this standard is considered safer than eyewear that does not.
- Something which is different from the usual
- Deviation from common rule. an irregularity in the motion of a planet by which it deviates from the aphelion or apogee.—mean anomaly formerly signified the distance of a planet`s mean place from the apogee: it is the angular distance of a planet or comet from perihelion supposing it to have moved with its mean velocity.—true anomaly, the true angular distance of a planet or comet from perihelion. (see
- Аномалия
- A local feature distinguishable structurally or by radioactive, geochemical, electric, magnetic, or gravity measurements, indicating either a favorable or unfavorable area to explore for minerals, water, gas, or petroleum.
- Variation from normal material or product quality.
- Отклонение от нормального качества материала или изделия.
- In nondestructive testing, a nonrelevant indication.
- In nondestructive testing, an unintentional or undesired material condition that may qualify as a defect. compare defect; discontinuity. some anomalies, such as inadequate case hardening or rough surface finish, may be defects but, because there is no interruption in the material structure, are not discontinuities. asnt recommended practice no. snt-tc-1a: see recommended practice no. snt-tc-1a. asnt: american society for nondestructive testing.
- Discontinuity. a variation from normal in product quality or material property.1 aoq: average outgoing quality. aoql: average outgoing quality limit. aql: see acceptable quality level.
- Variation from normal material or product quality. (1) in nondestructive testing, a nonrelevant indication. (2) in nondestructive testing, an unintentional or undesired material condition that may qualify as a defect. compare defect; discontinuity.
- In nondestructive testing, an unintentional or undesired material condition that may qualify as a defect. compare defect; discontinuity. some anomalies, such as inadequate case hardening or rough surface finish, may be defects but, because there is no interruption in the material structure, are not discontinuities.
- Variation from normal material or product quality.10
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