What is Gate: Definition and 259 Discussions

A gate or gateway is a point of entry to or from a space enclosed by walls. The word derived from old Norse "gat" meaning road or path; But other terms includ yett and port. The concept originally referred to the gap or hole in the wall or fence, rather than a barrier which closed it. Gates may prevent or control the entry or exit of individuals, or they may be merely decorative. The moving part or parts of a gateway may be considered "doors", as they are fixed at one side whilst opening and closing like one.A gate may have a latch that can be raised and lowered to both open a gate or prevent it from swinging. Locks are also used on gates to increase the security. Larger gates can be used for a whole building, such as a castle or fortified town. Actual doors can also be considered gates when they are used to block entry as prevalent within a gatehouse. Today, many gate doors are opened by an automated gate operator.

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  1. siddharth

    The Bartimaeus Trilogy Finale: Ptolemy's Gate - A Fantasy Must-Read!

    I finally got my hands on Ptolemy's Gate (Final book of the Bartimaeus Trilogy). It was absolutley fantastic. This has got to be one the best fantasy books around. If you ask me, it's right up there with LOTR. How many of you have read the book?
  2. denian

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  3. E

    XNOR Gate: The Combination of XOR and NOT Gates

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  4. L

    CNOT gate has actually been built or not?

    Could somebody tell me whether or not a CNOT gate has actually been built or not? Thanks, lorka
  5. C

    Way to systematically solve gate problems?

    Hello all Is there any way tp systematically solve gate problems? Thanks
  6. Mk

    CNOT Gate: What is it & How Does it Work?

    Yeah so, scientists in Japan have the CNOT gate, control not. What does it do? What's the truth table... other stuff. Are gates made of transistors?
  7. D

    Digital logic gate power suppy

    merged with the other thread by enigma
  8. O

    Constructing and Exploring Non-Trivial Numerical Complex Models

    Let us say that we wish to construct and explore a non-trivial numerical form of structural/dynamic abstract or non-abstract complex models. If there was a way to choose the unique building blocks that we need for this goal, it was our gate to the universe of complexity exploration. For...
  9. C

    Potential energy difference as a gate to perpetual energy transfers

    Hello. Take a look to this: www.geocities.com/k_pullo/potentia.htm Basically, it's a method to trigger an enormous energy transfer, using a little energy input. A difference on potential energy between two points allows opposite forces (making a virtual zero) to create a real...
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