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
Measure S housing, that local labor be used on them, and incentivized developers for building near the city's subway lines. The city's business community, particularly developers, were as opposed to it as they were to Measure S. However, so was the CPLA. In a news release strongly opposing JJJ, it claimed that initiative had been "cooked up" by the interests opposing Measure S in an effort to split its support and keep it from the ballot. Measure S proponents said that they considered JJJ likely to fall short of its goals, pointing to what they considered broadly worded loopholes in JJJ. "Ultimately