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?) "YouTube Rewind: What Does 2013 Say?", a homage paid by YouTube to the year's top videos. The song has been featured for multiple times on television. It was used in an advertisement for the Fox Network featuring clips of FOX programs and actors singing the song. On 28 October, four contestants on the seventeenth season of "Dancing with the Stars" performed the song for the "Team Dance" week under the team name "Foxing Awesome", scoring a perfect 30. NBC's "Saturday Night Live" cast-member Jay Pharoah and host Kerry Washington appeared in a parody video of the song titled "My Girl"