The shuttle is a kind of projectile with aerodynamic capacities. These capacities make it so that the shuttle has a completely different trajectory than a ball like in tennis or squash. The weight of the shuttle is an average 5 grams and the feathers on the shuttle have a high resistance in the air, making it so that the shuttle has a high deceleration rate. Badminton is always played indoor since wind and other kinds of weather changes have a big effect on the shuttle.