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  2. Vaillant Group - Wikipedia

    en.wikipedia.org/wiki/Vaillant_Group

    The history of the Vaillant Group dates back to 1874, when Johann Vaillant set up a master fitter's business. In 1894 Johann Vaillant patented a new "closed-system" gas-fired bathroom boiler. [3] This was the first device that made it possible to heat water hygienically, without contaminating it with combustion gases.

  3. Auto-defrost - Wikipedia

    en.wikipedia.org/wiki/Auto-defrost

    A defrost timer taken out of a household refrigerator. The defrost mechanism in a refrigerator heats the cooling element (evaporator coil) for a short period of time and melts the frost that has formed on it. [1] The resulting water drains through a duct at the back of the unit. Defrosting is controlled by an electric or electronic timer.

  4. Troubleshooting - Wikipedia

    en.wikipedia.org/wiki/Troubleshooting

    Troubleshooting is a form of problem solving, often applied to repair failed products or processes on a machine or a system. It is a logical, systematic search for the source of a problem in order to solve it, and make the product or process operational again. Troubleshooting is needed to identify the symptoms.

  5. Carl Benz - Wikipedia

    en.wikipedia.org/wiki/Carl_Benz

    Carl Benz was born Karl Friedrich Michael Vaillant on 25 November 1844 in Mühlburg, now a borough of Karlsruhe, Baden-Württemberg, which is part of modern Germany. His parents were Josephine Vaillant and a locomotive driver, Johann Georg Benz, whom she married a few months later. According to German law, the child acquired the name "Benz" by ...

  6. John Vaillant - Wikipedia

    en.wikipedia.org/wiki/John_Vaillant

    John Vaillant (born 1962) is an American Canadian writer and journalist whose work has appeared in The New Yorker, The Atlantic, National Geographic, and Outside. He has written both non-fiction and fiction books.

  7. George Clapp Vaillant - Wikipedia

    en.wikipedia.org/wiki/George_Clapp_Vaillant

    George Clapp Vaillant (April 5, 1901 – May 13, 1945) was an American anthropologist. George Clapp Vaillant was born 1901 in Boston , Massachusetts , and attended Noble and Greenough School in his hometown.

  8. Egg timer - Wikipedia

    en.wikipedia.org/wiki/Egg_timer

    Clockwork mechanism of a mechanical egg timer One such product is made of translucent plastic with a heat-sensitive coloured disc in the middle which changes colour at 80 °C (176 °F). The plastic around the disc changes temperature relatively steadily and gradually from the outside to the inside of the plastic mimicking how an egg heats up ...

  9. George Eman Vaillant - Wikipedia

    en.wikipedia.org/wiki/George_Eman_Vaillant

    George Eman Vaillant (/ v ə ˈ l æ n t /; born June 16, 1934) is an American psychiatrist and Professor at Harvard Medical School and Director of Research for the Department of Psychiatry, Brigham and Women's Hospital.