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top,

toy with a tapering point on which it can be made to spin. Tops were known in antiquity and appeared in Europe during the Middle Ages; they are used today in many different regions of the world by both primitive and advanced societies. The principle of its motion is utilized in the gyroscopegyroscope
, symmetrical mass, usually a wheel, mounted so that it can spin about an axis in any direction. When spinning, the gyroscope has special properties. Many spinning objects exhibit some of these properties; the rotation of the earth about its axis gives it the
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.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/

top

[täp]
(geology)
(mechanics)
A rigid body, one point of which is held fixed in an inertial reference frame, and which usually has an axis of symmetry passing through this point; its motion is usually studied when it is spinning rapidly about the axis of symmetry.
(particle physics)
The new quantum number associated with the top quark. Also known as truth.
(quantum mechanics)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

top

1. short for top gear
2. Cards the highest card of a suit in a player's hand
3. a platform around the head of a lower mast of a sailing vessel, the edges of which serve to extend the topmast shrouds
4. Chem the part of a volatile liquid mixture that distils first
5. the high-frequency content of an audio signal
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

TOP

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

TOP

(Technical Office Protocol) A communications protocol for office systems developed in the early 1980s by the Computer Services division of Boeing in Seattle, WA. It is often used in conjunction with MAP, the factory automation protocol developed by GM. TOP is used in the front office, and MAP is used on the factory floor. TOP uses the CSMA/CD access method (Ethernet), while MAP uses token bus.
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References in periodicals archive ?
Top Hat is at the Tyne Theatre and Opera House from today until Saturday (performances at 7pm with 2pm matinees on Thursday and Saturday).
Tickets cost from PS15 to PS22 and are available from any cast member, from Paisley Musical and Operatic Society, or via the online box office at www.atgtickets.com/glasgow To find out more about the club visit www.pmos.org.uk Puttin' on a show Newlyengaged couple Greg Robertson and Claire Logue are taking on the lead roles in Paisley Musical and Operatic Society's production of Top Hat. Picures: Kev Moulds Photography
Top Hat's interactive platform enables college and university professors to engage their students inside and outside the classroom with compelling interactive tools and content.
Alan Burkitt and Charlotte Gooch in musical comedy Top Hat, running at the Birmingham Hippodrome |
In episode 2, the two cups of coffee that the assistant, at the toy shop, is holding also has top hat printed on them.
(3) Carefully cut out the inside black rectangle from the top hat (leave the narrow, white frame edge).
Popular culture is littered with figures in top hats -- such as American film idol Fred Astaire, former U.S.
Sad to report, neither Mr Raffan nor his son continues to sell top hats in Aberdeen as Google Maps shows the shop now merchandising from 82 Union Street belongs to the Virgin Media chain.
The sailors waved top hats in the air, before watching the movie on a big screen in the ship's hangar bay.
This annual award consists of a plaque and a book titled "Apostle in a Top Hat" by James Partick Darum, the story of Frederic Ozanam, founder of the St.
Nominated for four Academy Awards Top Hat is widely regarded as one of the greatest dance musicals of all time and the most successful picture of the nine movies Astaire and Rogers made together.
One of the oldest credit clubs in the United States, the 475-Esquire-Toppers have a diverse and active membership--and a list of previous Top Hat award winners--that are a who's who of New York business.