The term permanent way also refers to the track in addition to lineside structures such as fences etc.
Traditional track structure
Notwithstanding modern technical developments, the overwhelmingly dominant track form worldwide consists of flat-bottom steel rails supported on timber or pre-stressed concrete sleepers, which are themselves laid on crushed stone ballast.
The rails, or Rallidae, are a large cosmopolitanfamily of small- to medium-sized birds. The family exhibits considerable diversity and also includes the crakes, coots, and gallinules. Many species are associated with wetlands, although the family is found in every terrestrialhabitat except dry deserts, polar regions, and alpine areas above the snow line. Members of the Rallidae occur on every continent except Antarctica. There are numerous island species. The most common rail habitats are marshland or dense forest. They are especially fond of dense vegetation.
The rails are a fairly homogeneous family of small to medium-sized ground living birds. They vary in length from 12cm to 63cm and in weight from 20 g to 3000 g. Some species have long necks and in many cases are laterally compressed. The bill is the most variable feature within the family: in some species it is longer than the head (like the clapper rail of the Americas), in others it may be short and wide (as in the coots), or massive (as in the purple gallinules). A few coots and gallinules have a frontal shield, which is a fleshy rearward extension of the upper bill. The most complex frontal shield is found in the horned coot. Rails exhibit very little sexual dimorphism in either plumage or size.
A rugby league football team consists of thirteen players on the field, with four substitutes on the bench. Players are divided into two general categories, forwards and backs.
Forwards are generally chosen for their size and strength. They are expected to run with the ball, to attack, and to make tackles. Forwards are required to improve the team's field position thus creating space and time for the backs. Backs are usually smaller and faster, though a big, fast player can be of advantage in the backs. Their roles require speed and ball-playing skills, rather than just strength, to take advantage of the field position gained by the forwards.
Names and numbering
The laws of the game recognise standardised numbering of positions. The starting side normally wear the numbers corresponding to their positions, only changing in the case of substitutions and position shifts during the game. In some competitions, such as Super League, players receive a squad number to use all season, no matter what positions they play in.
The center (C), also known as the five or the big man, is one of the five positions in a regulation basketball game. The center is normally the tallest player on the team, and often has a great deal of strength and body mass as well.
The tallest player to ever be drafted in the NBA or the WNBA was the 7'8" (2.33 m) Yasutaka Okayama from Japan, though he never played in the NBA. The tallest players to ever play in the NBA, at 7'7" (2.31 m), are centers Gheorghe Mureșan, and Manute Bol. Standing at 7'2" (2.18 m), Margo Dydek is the tallest player to have ever played in the WNBA.
History of the center position
Emergence of the center and the era of George Mikan
The center is considered a necessary component for a successful team, especially in professional leagues such as the NBA. Great centers have been the foundation for most of the dynasties in both the NBA and NCAA. The 6’10" (2.08 m) George Mikan pioneered the Center position, shattering the widely held perception that tall players could not develop the agility and coordination to play basketball well, and ushering in the role of the dominant big man. He led DePaul University to the NIT title, then, after turning professional, won seven National Basketball League, Basketball Association of America and NBA Championships in his ten-year career (1946–56), nine of them with the Minneapolis Lakers. Using his height to dominate opposing players, Mikan invented the hook shot and the shot block; as a consequence, the NCAA, and later NBA, adopted the goaltending rule, and, in 1951, the NBA widened the foul lane, a decision known as the 'Mikan rule'.
In the game of rugby union, there are 15 players on each team, comprising eight forwards (numbered 1–8) and seven backs (numbered 9–15). In addition, there may be up to eight replacement players "on the bench". Jersey numbers 16–23 differentiate them. Players are not restricted to any single position on the field, although they generally specialise in just one or two that suit their skills and body types. Players that specialise in over three positions are called "utility players". The scrum (an assemblage used to restart play), however, must consist of eight players: the "front row" (two props, a loosehead and tighthead, and a hooker), the "second row" (two locks), and a "back row" (two flankers, and a number 8). The players outside the scrum are called "the backs": scrum-half, fly-half, two centres (inside and outside), two wings, and a fullback. Early names, such as "three-quarters" (for the wings and centres) and "outside-halves" (for fly-half) are still used by many in the Northern Hemisphere, while in the Southern Hemisphere the fly-half and inside centre are colloquially called "first five-eighth" and "second five-eighth" respectively, while the scrum-half is known as the "half-back".
A survey by the Centre, for its Swachh Rail, Swachh Bharat Ranking has shown that none of Gujarat’s railway stations figures in the top 10 clean stations either in the A1 category or even the A category. In fact, Ahmedabad station ranks 17, which is much behind Vadodara that ranks 15th in the survey. ....
Before the high court, the farmers have questioned the state government’s power to issue notification for land acquisition because the project undertaken by the NationalHigh SpeedRailCorporation is spread across two states and the Centre is an appropriate authority to undertake the process....
Set to be a virtual reality centre to analyse rail accidents, it will come up on ... Abhishek R, a rail enthusiast, said such centres will help new staffers to react during tragedies like train derailments, collisions and collapse of bridges....
Virgin Hyperloop One, a US startup developing a near-supersonic rail transit system, has reached an agreement with Spanish state-owned rail infrastructure company Adif to build a $500 million research centre in Spain, its first in Europe, the two companies said ... A hyperloop is a shuttle that travels on magnetic rails, somewhat like a train, but which runs in a tube with little or no air....
Virgin Hyperloop One, a US startup developing a near-supersonic rail transit system, has reached an agreement with Spanish state-owned rail infrastructure company Adif to build a US$500mil (RM2il) research centre in Spain, its first in Europe... ....
Virgin Hyperloop One, a US startup developing a near-supersonic rail transit system, has reached an agreement with Spanish state-owned rail infrastructure company Adif to build a $500 million research centre in Spain, its first in Europe, the two companies said Tuesday ... ....
He runs a Khadi weaving centre opposite the ashram ...Delhi MetroRailCorporation collects Rs 38 lakh as fines for sitting on train floor ... This wall has divided a piece of land near a Khadi weaving centre, set by Gandhiji himself," Badhiya claimed ... The ashram was home to the Mahatma from 1917 until 1930 and had served as one of the main centres of the ......