screw-ball

См. также в других словарях:

• screw|ball — «SKROO BL», noun, adjective. –n. 1. Slang. an eccentric person. 2. Baseball. a pitch thrown with a break or spin opposite to that of a curve. –adj. Slang. eccentric; erratic: »screwball arguments that don t make sense …   Useful english dictionary

• Screw theory — was developed by Sir Robert Stawell Ball in 1876, for application in kinematics and statics of mechanisms (rigid body mechanics). It is a way to express displacements, velocities, forces and torques in three dimensional space, combining both… …   Wikipedia

• Ball spline — Ball splines (Ball Spline bearings) are a special type of linear motion bearing that are used to provide nearly frictionless linear motion while allowing the member to transmit torque simultaneously. There are grooves ground along the length of… …   Wikipedia

• Ball screw — A ball screw is a mechanical device for translating rotational motion to linear motion. A threaded shaft provides a spiral raceway for ball bearings which act as a precision screw. As well as being able to apply or withstand high thrust loads… …   Wikipedia

• Ball differential — A ball differential is a type of differential typically used on radio controlled cars. It differs from a geared differential by using several small ball bearings rotating between two plates, instead of bevel gears. History The first ball… …   Wikipedia

• screw — n. & v. n. 1 a thin cylinder or cone with a spiral ridge or thread running round the outside (male screw) or the inside (female screw). 2 (in full wood screw) a metal male screw with a slotted head and a sharp point for fastening things, esp. in… …   Useful english dictionary

• screw — [[t]skru͟ː[/t]] screws, screwing, screwed 1) N COUNT A screw is a metal object similar to a nail, with a raised spiral line around it. You turn a screw using a screwdriver so that it goes through two things, for example two pieces of wood, and… …   English dictionary

• screw up — verb 1. make more intense (Freq. 1) Emotions were screwed up • Syn: ↑heat up, ↑hot up • Hypernyms: ↑intensify, ↑compound, ↑heighten, ↑ …   Useful english dictionary

• Screw thread — Internal and external threads illustrated using a common nut and bolt. The screw and nut pair can be used to convert torque into linear force. As the screw (or bolt) is rotated, the screw moves along its axis through the fixed nut, or the non… …   Wikipedia

• screw — screw1 [skru:] n [Date: 1400 1500; : Old French; Origin: escroe inner screw, nut , from Latin scrofa female pig ] 1.) a thin pointed piece of metal that you push and turn in order to fasten pieces of metal or wood together →↑nail ▪ Fix the frame… …   Dictionary of contemporary English

• screw — screw1 [ skru ] noun count * 1. ) a thin pointed piece of metal used for fastening one thing to another. It has a raised twisted part on it called a thread. You push and turn it with a screwdriver instead of hitting it with a hammer like a nail:… …   Usage of the words and phrases in modern English