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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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.

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)

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

TOP

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.
References in periodicals archive ?
The topmost winner who has lost the highest amount of weight will receive two grams of gold each for every kilo of weight shed," he said.
Reliance Retail has been operational since last eight years and it has achieved the topmost position in the industry in a short span of time.
The restoration of Bulgarian institutions' normal functioning and the recovery investors' trust will the topmost challenge for the government for at least the coming year," stated Bulgaria's PM, according to a cabinet press release.
But MrgprA3* neurons which transmit signals from the topmost layer of skin, seem to be itch-only sensors, an international team reports online December 23 in Nature Neuroscience.
The naming of the award after a tobacco firm and the association of the government's topmost functionary with it both violate the Framework Convention on Tobacco Control ( FCTC) and its associated guidelines,
The topmost photographs show shelves being constructed and filled with books and knickknacks.
Deutsche Post, one of the topmost postal operators in the field has annual revenues exceeding 50bn euros in their latest accounts.
India is one of the important markets in world; it is the topmost on my priority list.
8 (BNA) -- There has been compelling evidence that milk is the topmost source of vitamin D.
Rodney Williams, the company chief investment officer and a managing principal, said, 'Our team sourced and will execute an investment that combines the integral value-add components of a consistently strong demand market with inordinately high barriers to entry, topmost location within a market, and our ability to significantly enhance performance through physical repositioning and re-branding.
Expanding our network across the kingdom to offer our customers a diverse portfolio of remittance services has been our topmost priority," said George Philip.
I think security is our topmost issue," Finance Minister Abdul Hafeez Shaikh told parliament in his budget speech.