Snap
Snap or SNAP may refer to:
Games and sport
Music
Science
Computing
Snap (computer graphics)
In computer graphics, snapping allows an object to be easily positioned in alignment with grid lines, guide lines or another object, by causing it to automatically jump to an exact position when the user drags it to the proximity of the desired location.
Some CAD software provides a "Snap" pull-down menu with diverse options as preferences for the practice of the operation.
In Windows with the option snap enabled, vertical positioning of a window against the top edge of the screen causes it to change into full screen.
Jounce
In physics, jounce or snap is the fourth derivative of the position vector with respect to time, with the first, second, and third derivatives being velocity, acceleration, and jerk, respectively; hence, the jounce is the rate of change of the jerk with respect to time. Jounce is defined by any of the following equivalent expressions:
The following equations are used for constant jounce:
where
The notation 
(used in ) is not to be confused with the displacement vector commonly denoted similarly. Currently, there are no well-accepted designations for the derivatives of jounce. The fourth, fifth and sixth derivatives of position as a function of time are "sometimes somewhat facetiously" referred to as snap, crackle and pop respectively. Because higher-order derivatives are not commonly useful, there has been no consensus among physicists on the proper names for derivatives above jounce.
The dimensions of jounce are distance per (time to the power of 4). In SI units, this is "metres per quartic second", "metres per second per second per second per second", m/s4, m · s−4, or 100 Gal per second squared in CGS units. This pattern continues for higher order derivatives, with the 5th being m/s5.
Buyō
Buyō (舞踊) or Nippon buyō/Nihon buyō (日本舞踊) is a traditional Japanese performing art, a mixture of dance and pantomime, which emerged in the early Edo period (early 17th century) from earlier traditions. While performed independently by specialists, it is particularly conspicuous as the style of dancing performed by geisha.
Influences
Nihon buyō differs from other Japanese traditional dances in that it is intended for entertainment on stage. Nihon buyō is a refined dance that has been improved throughout four centuries. There are four influences on Nihon buyō, the most significant being kabuki buyō. Nihon buyō was created directly from kabuki buyō before it became theater. The second influence on Nihon buyō is noh. Nihon buyō takes a few key elements from noh such as the circular movements and the tools used in its dances. The third influence on these dances comes from folk dances; the spinning and jumping used in folk dances was incorporated into Nihon buyō. The last influence comes from the mixture of European and American culture that is found in Japan today.
Buy
Buy may refer to:
Buy, Kostroma Oblast
Buy (Russian: Буй) is a town in Kostroma Oblast, Russia, which stands on the Kostroma River. Population: 25,763 (2010 Census); 27,392 (2002 Census); 32,701 (1989 Census).
History
Buy was originally a trading post and protected by a hill fortress of Finno-Ugrian Meri people c. 400–500 CE. Its original Meri name is not known, but in Finnish language it was called either Vuoksensuu or Vieksansuu (lit. Mouth of Vuoksi/Vieksa). It was inhabited by the Finno-Ugrian peoples at least up to the Mongol invasion of Russia in 1237–1238. During the Mongol threat, some inhabitants of Kostroma sought refuge in Buy, and it seems that they renamed the place Buy (Vui, Bui) instead of using the Finno-Ugrian name which was difficult for them to pronounce, but the origin of the Russian name comes from the old Meri name.
Modern Buy was founded in 1536 as a fortified point at the confluence of the Kostroma and the Vyoksa Rivers. The fortified point was built according to the order of Yelena Glinskaya, the regentess of Russia at that time and the mother of Ivan the Terrible, to defend the eastern frontiers of the Grand Duchy of Moscow from the raids by Kazan Tatars and others. However, twenty years after its construction, the fortress lost its military significance, as Kazan was taken and the raids ceased.
