A chain is a series of connected links which are typically made of metal. A chain may consist of two or more links.
Those designed for lifting, such as when used with a hoist; for pulling; or for securing, such as with a bicycle lock, have links that are torus shaped, which make the chain flexible in two dimensions (The fixed third dimension being a chain's length.)
Those designed for transferring power in machines have links designed to mesh with the teeth of the sprockets of the machine, and are flexible in only one dimension. They are known as roller chains, though there are also non-roller chains such as block chain.
Two distinct chains can be connected using a quick link which resembles a carabiner with a screw close rather than a latch.
Uses for chain
Uses for chain include:
Chain of office, collar or heavy gold chain worn as insignia of office or a mark of fealty in medieval Europe and the United Kingdom
Decorating clothing, some people wear wallets with chains connected to their belts, or pants decorated with chains
In mathematics, a linear order, total order, simple order, or (non-strict) ordering is a binary relation on some setX, which is transitive, antisymmetric, and total (this relation is denoted here by infix ≤). A set paired with a total order is called a totally ordered set, a linearly ordered set, a simply ordered set, or a chain.
If X is totally ordered under ≤, then the following statements hold for all a, b and c in X:
Antisymmetry eliminates uncertain cases when both a precedes b and b precedes a. A relation having the property of "totality" means that any pair of elements in the set of the relation are comparable under the relation. This also means that the set can be diagrammed as a line of elements, giving it the name linear.Totality also implies reflexivity, i.e., a ≤ a. Therefore, a total order is also a partial order. The partial order has a weaker form of the third condition. (It requires only reflexivity, not totality.) An extension of a given partial order to a total order is called a linear extension of that partial order.
A chain (ch) is a unit of length. It measures 66 feet, or 22 yards, or 100 links, or 4 rods (20.1168 m). There are 10 chains in a furlong, and 80 chains in one statute mile. An acre is the area of 10 square chains (that is, an area of one chain by one furlong). The chain has been used for several centuries in Britain and in some other countries influenced by British practice.
By extension, chainage (running distance) is the distance along a curved or straight survey line from a fixed commencing point, as given by an odometer.
The chain was commonly used with the mile to indicate land distances and in particular in surveying land for legal and commercial purposes. Starting in the 19th centary, the chain was used as a sub division with the mile to show distances between railway stations, tunnels and bridges. In medieval times, local measures were commonly used, and many units were adopted that gave manageable units; for example the distance from London to York could be quoted in inches, but the resulting huge number would be unmemorable. The locally used units were often inconsistent from place to place.
CEO targeted by chain-snatchers ... Two crooks on a bike snatched a gold chain worth Rs2.4 lakh right from the neck of an Bandra-based insurance firm’s CEO while he was on a morning walk in Goregaon (East) last week ... Aarey police have sought the CCTV footage from the routes that the snatchers may have taken after the incident at 7.40am on November 25.
+Text Size. SmallMediumLarge. ARTICLES. Two fake call centres busted in Delhi, Noida; 28 held. At 7,000 crore, Telangana registration income higher than pre-Covid collection ... 8 inter-district chain snatchers held. HYDERABAD ... The gang pretended to be bank employees and cheated citizens to the tune of crores of rupees, he said ... Start a Conversation ... .
Chain snatcher tries to stab constable in Pune...The police had enhanced patrolling in the area after Monday’s back-to-back chain-snatching incidents, especially in Nigdi and Wakad areas ... “He has been involved in 56 cases of chain snatching in Pune, Pimpri Chinchwad, and Pune rural areas.
+Text Size. SmallMediumLarge. ARTICLES. Two mega inoculation drives in Pune civic limits in December. Decision to reopen primary classes in dist after Dec 15. Why ‘phasing down’ coal is a realistic and optimistic objective. Chain snatcher tries to stab constable in Pune. Pune ...Start a Conversation. Top StoriesRight Now. Covid-19 ... More top stories. .
They were looking for a suspected chain snatcher who had allegedly snatched a woman’s chain on Sunday morning in the same area ... Suspected chain snatcher attacks cop with knife and pepper spray, arrestedIISER Pune’s student startup Curem Biotech bags iGEM prize worth $10,000Pune.
+Text Size. SmallMediumLarge. ARTICLES. Bengaluru. Thefts up post lockdown, financial woes to blame. Public placesAct applicable only in notified areas. Karnataka HC ... Bengaluru. BBMP files plaint against waste unit amid protests ... “A chain-snatcher first steals a bike so that he can use the vehicle while committing the offence and later abandons it ... .
Further, as lighting and security are essential in and around public parks and gardens to induce a feeling of security to the visitors, lack of adequate lighting and absence of security has made it easy for chain-snatchers to commit theft post sunset and flee under the cover of darkness ... Cases of chain stanching have also occurred here ... – Sapna Jain.
It won the Benchling and Hummingbird VC prize comprising a cash award of $10,000. The winning entry comprised Machine Learning (ML)-based diagnostics tools for various disease conditions ...Pune. Suspected chain snatcher attacks cop with knife and pepper spray, arrestedIISER Pune’s student startup Curem Biotech bags iGEM prize worth $10,000Pune ... .
In an official order, municipal commissioner Vikram Kumar said, “The opening of schools for Classes I to VII for offline teaching is being suspended till December 15... Suspected chain snatcher attacks cop with knife and pepper spray, arrestedIISER Pune’s student startup Curem Biotech bags iGEM prize worth $10,000Click here for more ... Tags ... Nov 30.
“Mamata Didi is on a Maharashtra tour and she will meet Pawar sahab tomorrow at 3 pm ... Also Read .All-party meet. TMC raises 10 issues, AAP walks out ... Suspected chain snatcher attacks cop with knife and pepper spray, arrestedIISER Pune’s student startup Curem Biotech bags iGEM prize worth $10,000Click here for more ... Tags ... Advertisement ... .
Two chain snatchers were arrested in LoniKotwali area on Thursday evening. The accused were caught by public after they snatched a chain from a woman and were later handed over to police ... The accused snatched her gold chain and fled.
CHENNAI ...Police said the two men came closer and lunged for the woman's gold chain ... Based on their complaint, Ambattur Estate police have launched a hunt for the chain-snatchers ... Start a Conversation. .
An alert bus crew helped city police nab a chain snatcher, who after committing the crime , boarded an MTC bus to escape at Kilpauk on Thursday ...Seeing the chain-snatcher holding on to a machete, the panicked passengers asked the conductor not to argue with him.
MTC bus rerouted to police station to hand over chain-snatcher ... An alert bus crew helped city police nab a chain snatcher, who after committing the crime , boarded an MTC bus to escape at Kilpauk on Thursday ... Seeing the chain-snatcher holding on to a machete, the panicked passengers asked the conductor not to argue with him.