FACTOID # 10: The total number of state executions in 2005 was 60: 19 in Texas and 41 elsewhere. The racial split was 19 Black and 41 White.

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Encyclopedia > Wind socks

A windsock is a large, conical, open-ended tube designed to indicate wind direction and relative wind speed. Windsocks typically are used at airports and in chemical plants in which there is risk of gaseous leakage. They are sometimes located alongside highways at windy locations.

Wind direction is indicated by the direction in which the windsock is pointing (note that wind directions are conventionally specified as being the compass point from which the wind originates; so a windsock pointing due north indicates a southerly wind.) Windspeed is indicated by the windsock's angle relative to the mounting pole; in low winds, the windsock droops; in high winds it flies horizontal.

Also called a wind sock or wind cone.

• FAA Specification for Wind Cone Assemblies (http://www.faa.gov/arp/publications/acs/5345-27d.pdf) FAA Advisory Circular 150/5345-27D (PDF 447KB)

Results from FactBites:

 NASAexplores K-4 Lesson: Wind In Your Socks (Teacher Sheets) (819 words) Wind is directed down the tube, causing the narrow end to point in the same direction the wind is blowing. The wind sock aligns itself with the wind and the strips move toward a horizontal position. Place a wind sock in the classroom in different positions and ask the students to determine if there is air circulation in the room, and from which direction.
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