No matter: they concurred unanimously in... every point with what had been thought best in Philadelphia.. The commissioners named the city Washington.. They also had to name the ten mile square, mandated by the Constitution, that the the city was in. In 1791 there were already two existing towns in that ten mile square, Georgetown and Alexandria. They chose the name Columbia.. As far as I can ascertain there was no debate about Columbia either.
A windmill is a mill that converts the energy of wind into rotational energy by means of vanes called sails or blades. Centuries ago, windmills usually were used to mill grain, pump water, or both. Thus they often were gristmills, windpumps, or both.
A windmill anemometer is a common instrument used at weather stations to obtain the wind speed. A wind vane is used as part of the anemometer to determine the wind's direction. As the wind flows over the windmill, the speed and direction of the wind can be measured with this instrument. Some scientific anemometers use the speed of sound to measure the wind speed more precisely in three dimensions.