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  2. Dilution refrigerator - Wikipedia

    en.wikipedia.org/wiki/Dilution_refrigerator

    A 3 He/ 4 He dilution refrigerator is a cryogenic device that provides continuous cooling to temperatures as low as 2 mK, with no moving parts in the low-temperature region. [ 1 ] [ 2 ] The cooling power is provided by the heat of mixing of the helium-3 and helium-4 isotopes.

  3. Low-temperature technology timeline - Wikipedia

    en.wikipedia.org/wiki/Low-temperature_technology...

    1999 – D.J. Cousins and others, dilution refrigerator reaching 1.75 mK; 1999 – The current world record lowest temperature was set at 100 picokelvins (pK), or 0.000 000 000 1 of a kelvin, by cooling the nuclear spins in a piece of rhodium metal. [18]

  4. Pulse tube refrigerator - Wikipedia

    en.wikipedia.org/wiki/Pulse_tube_refrigerator

    The pulse tube refrigerator (PTR) or pulse tube cryocooler is a developing technology that emerged largely in the early 1980s with a series of other innovations in the broader field of thermoacoustics.

  5. Hot and Cold: Opposites Unite in New GE Café™ Refrigerator

    www.aol.com/news/2013-04-09-hot-and-cold...

    The 29-cubic-foot GE Café French door refrigerator, available now, is the first refrigerator in the industry that can heat 10 ounces of water in minutes—ideal for steeping delicate, white tea ...

  6. Cryocooler - Wikipedia

    en.wikipedia.org/wiki/Cryocooler

    A refrigerator designed to reach cryogenic temperatures (below 120 K, -153 °C, -243.4 °F) is often called a cryocooler.The term is most often used for smaller systems, typically table-top size, with input powers less than about 20 kW.

  7. Refrigerator - Wikipedia

    en.wikipedia.org/wiki/Refrigerator

    Food in a refrigerator with its door open. A refrigerator, commonly shortened to fridge, is a commercial and home appliance consisting of a thermally insulated compartment and a heat pump (mechanical, electronic or chemical) that transfers heat from its inside to its external environment so that its inside is cooled to a temperature below the room temperature. [1]

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