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Physicists Have Found An Entirely New Type of Superconductivity

Discussion in 'TUG Lounge' started by MULTIZ321, Apr 15, 2019.

  1. MULTIZ321

    MULTIZ321 TUG Member

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    Physicists Have Found An Entirely New Type of Superconductivity
    By Fiona MacDonald/ Science Alert/ sciencealert.com

    "One of the ultimate goals of modern physics is to unlock the power of superconductivity, where electricity flows with zero resistance at room temperature.

    Progress has been slow, but in 2018, physicists have made an unexpected breakthrough. They discovered a superconductor that works in a way no one's ever seen before - and it opens the door to a whole world of possibilities not considered until now.

    In other words, they identified a brand new type of superconductivity.

    Why does that matter? Well, when electricity normally flows through a material - for example, the way it travels through wires in the wall when we switch on a light - it's fast, but surprisingly ineffective.

    Electricity is carried by electrons, which bump into atoms in the material along the way, losing some of their energy each time they have one of these collisions. Known as resistance, it's the reason why electricity grids lose up to 7 percent of their electricity.

    But when some materials are chilled to ridiculously cold temperatures, something else happens - the electrons pair up, and begin to flow orderly without resistance.

    This is known as superconductivity, and it has incredible potential to revolutionise our world, making our electronics unimaginably more efficient.

    The good news is we've found the phenomenon in many materials so far. In fact, superconductivity is already used to create the strong magnetic fields in MRI machines and maglev trains.

    The bad news is that it currently requires expensive and bulky equipment to keep the superconductors cold enough to achieve this phenomenon - so it remains impractical for broader use....."

    [​IMG]
    (Emily Edwards, University of Maryland)


    Richard
     

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