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  2. Pot-in-pot refrigerator - Wikipedia

    en.wikipedia.org/wiki/Pot-in-pot_refrigerator

    There is evidence that evaporative cooling may have been used in North Africa as early as the Old Kingdom of Egypt, circa 2500 BC. Frescoes show slaves fanning water jars, which would increase air flow around porous jars to aid evaporation and cooling the contents. [3] These jars exist even today. They are called zeer, hence the name of the pot ...

  3. Helium-3 refrigerator - Wikipedia

    en.wikipedia.org/wiki/Helium-3_refrigerator

    A helium-3 refrigerator is a simple device used in experimental physics for obtaining temperatures down to about 0.2 kelvins.By evaporative cooling of helium-4 (the more common isotope of helium), a 1-K pot liquefies a small amount of helium-3 in a small vessel called a helium-3 pot.

  4. Evaporative cooler - Wikipedia

    en.wikipedia.org/wiki/Evaporative_cooler

    Evaporative cooling of ordinary helium forms a 1-K pot, which can cool to at least 1.2 K. Evaporative cooling of helium-3 can provide temperatures below 300 mK. These techniques can be used to make cryocoolers , or as components of lower-temperature cryostats such as dilution refrigerators .

  5. Evaporative cooling chambers - Wikipedia

    en.wikipedia.org/wiki/Evaporative_cooling_chambers

    Evaporative cooling chambers (ECCs), also known as "zero energy cool chambers" (ZECCs), are a type of evaporative cooler, which are simple and inexpensive ways to keep vegetables fresh without the use of electricity. Evaporation of water from a surface removes heat, creating a cooling effect, which can improve vegetable storage shelf life.

  6. Watchdog warns credit card companies over devaluing ... - AOL

    www.aol.com/watchdog-warns-credit-card-companies...

    The Consumer Financial Protection Bureau (CFPB) on Wednesday warned that credit card companies devaluing or canceling reward points, cash back or miles rewards programs may be breaking the law.

  7. Absorption refrigerator - Wikipedia

    en.wikipedia.org/wiki/Absorption_refrigerator

    The expansion valve partially vaporizes the refrigerant cooling it via evaporative cooling and the resulting vapor is cooled via expansive cooling. (This is a combination of Joule-Thomson cooling and work done by the expanding gas, both at the expense of the internal energy of the gas) The cold, low pressure liquid refrigerant will now absorb ...

  8. Home prices may be on the verge of cooling off

    www.aol.com/home-prices-may-verge-cooling...

    After rising steadily since January, home prices may now be turning lower again. The latest read on home prices shows they hit another all-time high in July, rising 2.3% from the same month last ...

  9. North Minneapolis cosmetology schools aims to cater to all ...

    www.aol.com/news/north-minneapolis-cosmetology...

    Get this 'luxury hotel'-like queen set while it's at an all-time low price of just $16. See all deals. In Other News. Entertainment. Entertainment. The Today Show.

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