Gate

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A gate is a point of entry to a space enclosed by walls, or an opening in a fence. Gates may prevent or control entry or exit, or they may be merely decorative.

Larger gates can be used for a whole building, such as a castle or fortified town, or the actual doors that block entry through the gatehouse. Today many gate doors are opened by an automated gate operator.

History In ancient and medieval times, gatehouses of cities and castles were heavily defended and fortified to prevent breaching of the gates. Often the gate would consist of several pairs of doors and iron grates along a tunnel through the gatehouse. The top of the tunnel commonly had murder holes to allow defenders to attack invaders trying to breach the inner doors. Drawbridges were common in conjunction with gates to facilitate passing the moat; moats were often used to increase the effective height of the walls.

A number of gates are used to mark military victories or important occasions as in a triumphal arch.

See also

Border, threshold or barrier
City gate
Domotics
Gate (airport)
Gatehouse
Doorway or gateway
Kissing gate
Lych gate
Torii
Triumphal arch
Turnstile

Image:Gate ajar.jpg|This gate doesn't prevent entry but clearly suggests a borderline.Image:Gate at Stevens-Coolidge Place, Andover, Massachusetts.JPG] is the oldest city gate in existence.Image:Sankt Petersburg Winterpalast 2005 e.jpg].Image:CroppedCRS.jpg|In modern times, electronic Gateway (telecommunications) provide protection, and allow communication traffic to pass.

Photos and locations of gates and stiles in Britain

The Gate Newcastle > Homepage
The Gate entertainment centre Newcastle: the place to eat, drink and party, with bars, clubs, restaurants, a casino and cinema. Homepage

The Gates Cambridge Scholarship ]
Gates Cambridge Scholarships are full-cost awards for graduate study and research in any subject available at the University of Cambridge.

Gate Theatre
find us. 11 pembridge road notting hill gate london w11 3hq notting hill gate. call the box office: 020 7229 0706. see map

The world's most trusted name in belts, hoses & hydraulics | Gates ...
Specialized power transmission, hose and hydraulics and aftermarket and OEM products. USA.

GATE and Business
GATE and Business ... GATE has been engineered to a high standard in order to be suitable for deployment in commercial applications software, and is based on components, mobile ...

gate from FOLDOC
gate < hardware > A low-level digital logic component. Gates perform Boolean functions (e.g. AND, NOT), store bits of data (e.g. a flip-flop), and connect and disconnect various ...

Golden Gates Housing Ltd - Welcome
Welcome to Golden Gates Housing. Welcome to the Golden Gates Housing website; full of news, information and the ability for customers to carry out various tasks.

Ashton Gate Stadium
Ashton Gate Stadium offers unique facilities for meetings, conferences and exhibitions with spacious, state of the art rooms for all your corporate needs.

Timber Gates - Supplied throughout the UK
Manufacturer of timber gates for driveways, gardens and field entrances.

Logic Gates
The Electronics Club ... Logic gates process signals which represent true or false. Normally the positive supply voltage +Vs represents true and 0V represents false.