Anemometer mounted on a vertical shaft. The air flow past the cups in any horizontal direction turned the shaft at a rate that was roughly proportional to the wind speed. Therefore, counting the turns of the shaft over a set time interval produced a value proportional to the average wind speed for a wide range of speeds. It is also called a rotational anemometer. On an anemometer with four cups, it is easy to see that since the cups are arranged symmetrically on the end of the arms, the wind always has the hollow of one cup presented to it and
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