- sun-spot cycle
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цикл солнечных пятен
English-Russian dictionary of geology. 2011.
English-Russian dictionary of geology. 2011.
Spot blotch (wheat) — Spot blotch is a leaf disease of wheat caused by Cochliobolus sativus .cite book last = Wiese first = M.V. title = Compendium of wheat diseases publisher = American Phytopathological Society date = 1987 pages = 124 pp ] cite book last = Martens… … Wikipedia
Climate cycle — A climate cycle is a type of recurring climate pattern that involves natural cyclic variations in the Earth s surface temperature, as indicated by temperature proxies found in glacier ice, sea bed sediment, tree ring studies or otherwise. Several … Wikipedia
sun — sunlike, adj. /sun/, n., v., sunned, sunning. n. 1. (often cap.) the star that is the central body of the solar system, around which the planets revolve and from which they receive light and heat: its mean distance from the earth is about 93… … Universalium
Great White Spot — The Great White Spot, also known as Great White Oval, on Saturn, named by analogy from Jupiter s Great Red Spot, is a name given to periodic storms that are large enough to be visible by telescope from Earth by their characteristic white… … Wikipedia
Environmental radioactivity — is produced by radioactive materials in the human environment. While some radioisotopes, such as strontium 90 (90Sr) and technetium 99 (99Tc), are only found on Earth as a result of human activity, and some, like potassium 40 (40K), are only… … Wikipedia
Orbiting Solar Observatory — OSO 4 Orbiting Solar Observatory diagram … Wikipedia
Arthur Schuster — Sir Franz Arthur Friedrich Schuster FRS (September 12 1851 ndash;October 17 1934) was a versatile German born British physicist known for his work in spectroscopy, electrochemistry, optics, X radiography and the application of harmonic analysis… … Wikipedia
Solar variation — Solar variations are changes in the amount of solar radiation emitted by the Sun. There are periodic components to these variations, the principal one being the 11 year solar cycle (or sunspot cycle), as well as aperiodic fluctuations. Solar… … Wikipedia
sunspot — sunspotted, adj. sunspottedness, n. /sun spot /, n. one of the relatively dark patches that appear periodically on the surface of the sun and affect terrestrial magnetism and certain other terrestrial phenomena. [1805 15; SUN + SPOT] * * * Cooler … Universalium
Timeline of solar astronomy — 9th century * 850 Ahmad ibn Muhammad ibn Kathīr al Farghānī (Alfraganus) gives values for the obliquity of the ecliptic, the precessional movement of the apogees of the Sun 10th century * 900 929 Muhammad ibn Jābir al Harrānī al Battānī… … Wikipedia
Tache solaire — Pour l’article homonyme, voir Sun SPOT (technique de réseaux de capteurs sans fil). Taches solaires. Une tache solaire (anglais … Wikipédia en Français