The reduction in pressure drag causes the ball to travel further. Second, backspin generates lift by deforming the airflow around the ball, in a similar manner to an airplane wing. This is called the Magnus effect. The dimples on a golf ball deform the air around the ball quickly causing a turbulent airflow that results in more Magnus lift than a smooth ball would experience. Backspin is imparted in almost every shot due to the golf club's loft (i.e., angle between the clubface and a vertical plane). A backspinning ball experiences an upward lift force which makes it fly higher and longer than a ball without spin. Curvature of the ball flight occurs when the clubface is not aligned perpendicularly to the club direction at impact, leading to an angled spin axis that causes the ball curve to one side or the other based on difference between the face angle and swing path at impact. Because the ball's spin during flight is angled, and because of the Magnus effect, the ball will take on a curved path during its flight. Some dimple designs claim to reduce the sidespin effects to provide a straighter ball flight. Other effects can change the flight behaviour of the ball. Factors such as dynamic lie (The angle of the shaft at impact relative to the ground and its manufactured neutral angle), strike location if the player is using a wood due to the curved face, and external factors such as wind and debris. To keep the aerodynamics optimal, the golf ball needs to be clean, including all dimples. Thus, it is advisable that golfers wash their balls whenever permissible by the rules of golf. Golfers can wash their balls manually using a wet towel or using a ball washer of some type. Design Dimples first became a feature of golf balls when English engineer and manufacturer William Taylor, co-founder of the Taylor-Hobson company, registered a patent for a dimple design in 1905. William Taylor had realized that golf players were trying to make irregularities on their balls, noticing that used balls were going further than new ones. Hence he decided to make systematic tests to determine what surface formation would give the best flight. He then developed a pattern consisting of regularly spaced indentations over the entire surface, and later tools to help produce such balls in series. Other types of patterned covers were in