rotational drag
111Running — Runner redirects here. For other uses, see Runner (disambiguation). This article is about the type of locomotion in humans. For running in horses, see Horse gait. For locomotion in dogs, see Gait (dog). For general locomotion, see Gait. For other …
112Turbomolecular pump — A turbomolecular pump is a type of vacuum pump, superficially similar to a turbopump, used to obtain and maintain high vacuum. These pumps work on the principle that gas molecules can be given momentum in a desired direction by repeated collision …
113Fuel injection — Fuel rail connected to the injectors that are mounted just above the intake manifold on a four cylinder engine. Fuel injection …
114Variable Specific Impulse Magnetoplasma Rocket — Artist s impression of several VASIMR engines propelling a craft through space The Variable Specific Impulse Magnetoplasma Rocket (VASIMR) is an electro magnetic thruster for spacecraft propulsion. It uses radio waves to ionize and heat a… …
115Knuckleball — A knuckleball (or knuckler for short) is a baseball pitch with an erratic, unpredictable motion. The pitch is thrown so as to minimize the spin of the ball in flight. This causes vortices over the stitched seams of the baseball during its… …
116Motorcycle helmet — A collection of motorcycle helmets worn by Moto GP racer Valentino Rossi A motorcycle helmet is a type of protective headgear used by motorcycle riders. The primary goal of a motorcycle helmet is motorcycle safety to protect the rider s head… …
117Magnus effect — The Magnus effect, demonstrated on a ball. v represents the wind velocity, the arrow F the resulting force towards the side of lower pressure. The Magnus effect is the phenomenon whereby a spinning object flying in a fluid creates a whirlpool of… …
118Capacitance Electronic Disc — Capacitance Electronic Discs The CED, exposed from protective caddy Media type video playback media Capacity 60 minutes NTSC video per side, 27,000 frames per side[ …
119Glossary of nautical terms — This is a glossary of nautical terms; some remain current, many date from the 17th 19th century. See also Wiktionary s nautical terms, Category:Nautical terms, and Nautical metaphors in English. Contents: A B C D E F G H I J K L M N O P Q R …
120RAF Alconbury — is a Royal Air Force station adjacent to the Stukeleys, near Alconbury and Huntingdon, Cambridgeshire in the United Kingdom, about 60 miles (100 km) north of London. Its runway and flight line were closed in the mid 1990s and it is currently a… …
