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wind chill

(Encyclopedia)wind chill, the cooling effect of wind and temperature combined, expressed in terms of the effect produced by a lower, windless temperature, also called wind chill factor, wind chill temperature, wind...

wind

(Encyclopedia)wind, flow of air relative to the earth's surface. A wind is named according to the point of the compass from which it blows, e.g., a wind blowing from the north is a north wind. The diurnal, or dai...

chill hardening

(Encyclopedia)chill hardening: see hardening.

wind instrument

(Encyclopedia)CE5 Wind instruments wind instrument, in music, any instrument whose tone is produced by a vibrating column of air. In the pipe organ the column of air is set into vibration by mechanical means. O...

wind shear

(Encyclopedia)wind shear, a sudden, drastic change in wind direction or speed over a comparatively short distance. Most winds travel horizontally, as does most wind shear, but under certain conditions, including th...

wind tunnel

(Encyclopedia)wind tunnel, apparatus for studying the interaction between a solid body and an airstream. A wind tunnel simulates the conditions of an aircraft in flight by causing a high-speed stream of air to flow...

wind turbine

(Encyclopedia)wind turbine: see under windmill. ...

wind vane

(Encyclopedia)wind vane: see weather vane.

solar wind

(Encyclopedia)solar wind, stream of ionized hydrogen—protons and electrons—with an 8% component of helium ions and trace amounts of heavier ions that radiates outward from the sun at high speeds. The continuous...

Wind River Range

(Encyclopedia)Wind River Range, part of the Rocky Mts., W Wyo., running southeastward c.120 mi (190 km) and constituting part of the Continental Divide. Gannett Peak (13,804 ft/4,207 m) is the highest point in Wyom...