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  2. Magnetic refrigeration - Wikipedia

    en.wikipedia.org/wiki/Magnetic_refrigeration

    The first working magnetic refrigerators were constructed by several groups beginning in 1933. Magnetic refrigeration was the first method developed for cooling below about 0.3 K (the lowest temperature attainable before magnetic refrigeration, by pumping on 3 He vapors).

  3. 11 Things You Can Clean With a Magic Eraser—and 6 You Can't ...

    www.aol.com/lifestyle/11-things-clean-magic...

    Be sure to wash the mug afterward with warm, soapy water to get rid of any residue and rinse clean. On Shower Doors and Walls. Magic Erasers are great for clearing cloudy shower doors of soap scum ...

  4. Superconducting magnetic energy storage - Wikipedia

    en.wikipedia.org/wiki/Superconducting_magnetic...

    This use of superconducting coils to store magnetic energy was invented by M. Ferrier in 1970. [2] A typical SMES system includes three parts: superconducting coil, power conditioning system and cryogenically cooled refrigerator. Once the superconducting coil is energized, the current will not decay and the magnetic energy can be stored ...

  5. Ferrite (magnet) - Wikipedia

    en.wikipedia.org/wiki/Ferrite_(magnet)

    These so-called ceramic magnets are cheap, and are widely used in household products such as refrigerator magnets. The maximum magnetic field B is about 0.35 tesla and the magnetic field strength H is about 30–160 kiloampere turns per meter (400–2000 oersteds). [33] The density of ferrite magnets is about 5 g/cm 3.

  6. Face washing - Wikipedia

    en.wikipedia.org/wiki/Face_washing

    Face washing, also known as facial cleanliness or face cleansing, is a form of washing in order remove dirt, germs, oil, debris, and any unwanted materials on the face, possibly with the use of soap or cleansing agent and water. These dirt or unwanted substances from cosmetic products and the environment are hardly soluble in water.

  7. Experts say there are signs a kid is old enough to bathe ...

    www.aol.com/lifestyle/experts-signs-kid-old...

    Once children can wash their bodies and hair properly, Poinsett says there are safety tips parents should keep in mind as they send their children into the bathroom alone. Making shower or bath ...

  8. Magnetic balls sold at Walmart recalled due to risk of ...

    www.aol.com/news/magnetic-balls-sold-walmart...

    High-powered magnetic balls, which connect together to form different shapes and structures, are often marketed as toys for children and teens or desk accessories for adults.

  9. Einstein refrigerator - Wikipedia

    en.wikipedia.org/wiki/Einstein_refrigerator

    The Einstein–Szilard or Einstein refrigerator is an absorption refrigerator which has no moving parts, operates at constant pressure, and requires only a heat source to operate. It was jointly invented in 1926 by Albert Einstein and his former student Leó Szilárd , who patented it in the U.S. on November 11, 1930 ( U.S. patent 1,781,541 ).