Anemometer is blowing on the back of the cup on the opposite end of the cross. Since a hollow hemisphere has a drag coefficient of .38 on the spherical side and 1.42 on the hollow side, more force is generated on the cup that is presenting its hollow side to the wind. Because of this asymmetrical force, torque is generated on the axis of the anemometer, causing it to spin. Theoretically, the speed of rotation of the anemometer should be proportional to the wind speed, because the force produced on an object is proportional to the speed of the fluid flowing
The Fox (What Does the Fox Say?) did not know about its existence when producing "The Fox". Like many viral music videos, "The Fox" has become an Internet meme and has been extensively covered and adapted by others, with some of the most prominent being a cover by The Ohio University Marching 110 who had previously covered "Gangnam Style" and LMFAO's "Party Rock Anthem"; a cover by Tay Zonday of "Chocolate Rain"; an acoustic guitar cover of the first verse by Tyler Ward; an adaptation based on the popular video game "League of Legends" entitled "What Does Teemo Say?"; and an adaptation by Annoying Orange entitled "The