Anemometer constant torque and responded more quickly to gusts than the four-cup anemometer. The three-cup anemometer was further modified by the Australian Dr. Derek Weston in 1991 to measure both wind direction and wind speed. Weston added a tag to one cup, which causes the cupwheel speed to increase and decrease as the tag moves alternately with and against the wind. Wind direction is calculated from these cyclical changes in cupwheel speed, while wind speed is determined from the average cupwheel speed. Three-cup anemometers are currently used as the industry standard for wind resource assessment studies & practice. One of the
Field Music (Measure) Field Music (Measure) Field Music (Measure) is the third full-length studio album by indie rock band Field Music. It was released on 15 February 2010. Officially, the album's name is the same as their debut album; the name "Measure", other than being the name of one of the songs, does not appear anywhere on the album's artwork. However, both fans and the band have taken to calling it "Measure" to distinguish the two. "Measure" is a double album and is split into two discs. The first disc primarily contains more traditionally-structured songs, including both of the album's singles ("Them That