Short note on Shuttlecock

A shuttlecock is a high-drag projectile used in the sport of badminton. It has an open conical shape: the cone is shaped from sixteen overlapping goose feathers surrounded into a rounded cork base. The cork is covered with thin leather. The shuttlecock's form makes it extremely aerodynamically steady. In spite of of initial orientation, it will turn to fly cork first, and stay in the cork-first orientation. The name shuttlecock is normally shortened to shuttle; a shuttlecock may as well be known as a bird or birdie. The abbreviation cock is not often used except in a funny sense, due to its vulgar connotations. The "shuttle" part of the name was most expected derived from its back-and-forth movement during the game, close to the shuttle of a loom; the "cock" part of the name was almost positively derived from the likeness of the feathers to a bird's crest.