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  2. Geopotential height - Wikipedia

    en.wikipedia.org/wiki/Geopotential_height

    Geopotential height differs from geometric height (as given by a tape measure) because Earth's gravity is not constant, varying markedly with altitude and latitude; thus, a 1-m geopotential height difference implies a different vertical distance in physical space: "the unit-mass must be lifted higher at the equator than at the pole, if the same ...

  3. User interface - Wikipedia

    en.wikipedia.org/wiki/User_interface

    Crossing-based interfaces are graphical user interfaces in which the primary task consists in crossing boundaries instead of pointing. Direct manipulation interface is a general class of user interfaces that allow users to manipulate objects presented to them, using actions that correspond to the physical world, at least loosely.

  4. List of automobiles known for negative reception - Wikipedia

    en.wikipedia.org/wiki/List_of_automobiles_known...

    Different sources use a variety of criteria for including negative reception that includes the worst cars for the environment, [1] meeting criteria that includes the worst crash test scores, the lowest projected reliability, and the lowest projected residual values, [2] earning a "not acceptable" rating after thorough testing, [3] determining ...

  5. Fiber-optic communication - Wikipedia

    en.wikipedia.org/wiki/Fiber-optic_communication

    This value is a product of bandwidth and distance because there is a trade-off between the bandwidth of the signal and the distance over which it can be carried. For example, a common multi-mode fiber with bandwidth–distance product of 500 MHz·km could carry a 500 MHz signal for 1 km or a 1000 MHz signal for 0.5 km.

  6. LGBTQ rights in the United States - Wikipedia

    en.wikipedia.org/wiki/LGBTQ_rights_in_the_United...

    Many LGBTQ rights in the United States have been established by the United States Supreme Court, which invalidated state laws banning protected class recognition based upon homosexuality, struck down sodomy laws nationwide, struck down Section 3 of the Defense of Marriage Act, made same-sex marriage legal nationwide, and prohibited employment ...

  7. United Kingdom - Wikipedia

    en.wikipedia.org/wiki/United_Kingdom

    [259] [260] [261] Based on market exchange rates, the UK is the sixth-largest economy in the world and the second-largest in Europe, both by nominal GDP. Its currency, the pound sterling , is the fourth most-traded currency in the foreign exchange market and the world's fourth-largest reserve currency (after the United States dollar , euro ...

  8. Coaxial cable - Wikipedia

    en.wikipedia.org/wiki/Coaxial_cable

    Coaxial cable, or coax (pronounced / ˈ k oʊ. æ k s /), is a type of electrical cable consisting of an inner conductor surrounded by a concentric conducting shield, with the two separated by a dielectric (insulating material); many coaxial cables also have a protective outer sheath or jacket.

  9. Burning Man - Wikipedia

    en.wikipedia.org/wiki/Burning_Man

    Burning Man is a week-long large-scale desert event focused on "community, art, self-expression, and self-reliance" held annually in the western United States. [1] [2] The event's name comes from its culminating ceremony: the symbolic burning of a large wooden effigy, referred to as the Man, that occurs on the penultimate night, the Saturday evening before Labor Day. [3]