imparts spin to
21Rifling — refers to the helix shaped pattern in the barrel of a firearm, which imparts a spin to a projectile around its long axis. This spin serves to gyroscopically stabilize the projectile, improving its aerodynamic stability and accuracy.Rifling is… …
22Differential (mechanical device) — For other uses, see Differential. A cutaway view of an automotive final drive unit which contains the differential Input …
23Introduction to quantum mechanics — This article is an accessible, non technical introduction to the subject. For the main encyclopedia article, see Quantum mechanics. Quantum mechanics …
24Bose–Einstein condensate — A Bose–Einstein condensate (BEC) is a state of matter of bosons confined in an external potential and cooled to temperatures very near to absolute zero (val|0|u=K, val| 273.15|u=°C, or val| 459.67|u=°F ). Under such supercooled conditions, a… …
25Topspinner — A top spinner is a type of delivery bowled by a cricketer bowling either wrist spin or finger spin. In either case, the bowler imparts the ball with top spin by twisting it with his or her fingers prior to delivery.A topspinning cricket ball… …
26List of Doctor Who items — This is a list of items from the BBC television series Doctor Who. Contents: Top · 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0–9 …
27Curveball — For the pseudonymous informant, see Curveball (informant). For the Ugly Betty episode, see Curveball (Ugly Betty). An animated diagram of a 12 6 curveball The curveball is a type of pitch in baseball thrown with a characteristic grip and hand… …
28magnetism — /mag ni tiz euhm/, n. 1. the properties of attraction possessed by magnets; the molecular properties common to magnets. 2. the agency producing magnetic phenomena. 3. the science dealing with magnetic phenomena. 4. strong attractive power or… …
29Fastball — For the American band of the same name, see Fastball (band). : For the game also known as fast pitch softball, see Softball. The fastball (also called hummer and other names) is the most common type of pitch in baseball. Some power pitchers, like …
30Topspin — For the fictional characters see Topspin (Transformers).In sports, in particular racquet sports , topspin is a property of a shot where the ball rotates as if rolling in the same direction as it is moving. Topspin on a shot imparts a downward… …
