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  2. Refrigerator magnet - Wikipedia

    en.wikipedia.org/wiki/Refrigerator_magnet

    A refrigerator magnet or fridge magnet is a small magnet, often attached to an artistic or whimsical ornament, which may be used to post items such as shopping lists, Christmas cards, child art or reminders on a refrigerator door, or which simply serves as decoration. [1] [2] [3] Refrigerator magnets come in a wide variety of shapes and sizes ...

  3. Refrigerator death - Wikipedia

    en.wikipedia.org/wiki/Refrigerator_death

    Refrigerator death. An older refrigerator (c.1942) with a closing latch and a newer mini fridge which uses magnets to hold the door closed. A refrigerator death is death by suffocation in a refrigerator or other air-tight appliance. Because, by design, such appliances are air-tight when closed, a person entrapped inside will have a low supply ...

  4. Magnetic refrigeration - Wikipedia

    en.wikipedia.org/wiki/Magnetic_refrigeration

    Magnetic refrigeration. Gadolinium alloy heats up inside the magnetic field and loses thermal energy to the environment, so it exits the field and becomes cooler than when it entered. Magnetic refrigeration is a cooling technology based on the magnetocaloric effect. This technique can be used to attain extremely low temperatures, as well as the ...

  5. Magnets and water net Magnotherm $6.9M seed round to kill ...

    techcrunch.com/2023/04/04/magnets-and-water-net...

    The global market for commercial refrigeration is worth $37 billion, according to Grand View Research. To capitalize on the opportunity, Magnotherm is announcing a seed round today. In an ...

  6. It’s official: LK-99 isn’t a room-temperature superconductor

    techcrunch.com/2023/08/18/lk-99-room-temperature...

    He’s an expert in copper sulfides, and he noticed that LK-99’s drop in resistance happened at the exact same temperature that Cu 2 S undergoes a phase change. Cu 2 S is an impurity that can ...

  7. Magnet - Wikipedia

    en.wikipedia.org/wiki/Magnet

    A magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, steel, nickel, cobalt, etc. and attracts or repels other magnets. A permanent magnet is an object made from a material ...

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