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  2. Induction heating - Wikipedia

    en.wikipedia.org/wiki/Induction_heating

    Component of Stirling radioisotope generator is heated by induction during testing. Induction heating is the process of heating electrically conductive materials, namely metals or semi-conductors, by electromagnetic induction, through heat transfer passing through an inductor that creates an electromagnetic field within the coil to heat up and possibly melt steel, copper, brass, graphite, gold ...

  3. Induction hardening - Wikipedia

    en.wikipedia.org/wiki/Induction_hardening

    Induction heating is a non contact heating process which uses the principle of electromagnetic induction to produce heat inside the surface layer of a work-piece. By placing a conductive material into a strong alternating magnetic field, electric current can be made to flow in the material thereby creating heat due to the I 2 R losses in the material.

  4. Induction furnace - Wikipedia

    en.wikipedia.org/wiki/Induction_furnace

    The advantage of the induction furnace is a clean, energy-efficient and well-controlled melting process, compared to most other means of metal melting. Most modern foundries use this type of furnace, and many iron foundries are replacing cupola furnaces with induction furnaces to melt cast iron, as the former emit much dust and other pollutants ...

  5. Iron filings - Wikipedia

    en.wikipedia.org/wiki/Iron_filings

    As the name suggests, iron filings can be obtained from metal working operations as the scrap material filed off larger iron and steel parts. [2] They are very often used in science demonstrations to show the direction of a magnetic field. Since iron is a ferromagnetic material, a magnetic field induces each particle to become a tiny bar magnet ...

  6. This Hallmark Video from the '50s Is a Treasure Trove of Gift ...

    www.aol.com/hallmark-video-50s-treasure-trove...

    Hallmark’s 1958 short film “The Art of Gift Wrapping” teaches so many creative and useful ways to wrap presents and make ribbon bows.

  7. Homemade Candy Is Hard—But This Christmas Bark Is So Easy - AOL

    www.aol.com/homemade-candy-hard-christmas-bark...

    Yields: 10-12 servings. Prep Time: 1 hour. Total Time: 1 hour 25 mins. Ingredients. 1. sleeve club-style crackers (from a 13.7-oz. box, about 38 crackers), plus more as needed

  8. Ring and Ball Apparatus - Wikipedia

    en.wikipedia.org/wiki/Ring_and_Ball_Apparatus

    The ring is set with the ball on top with ball guides on the grooved plate within the heating bath. As the temperature rises, the balls begin to sink through the rings carrying a portion of the softened sample with it. The temperature at which the steel balls touch the bottom plate determines the softening point in degrees Celsius. [5] [6]

  9. What is St. Nicholas Day? How the German and Dutch holiday ...

    www.aol.com/st-nicholas-day-german-dutch...

    In the small town of Mifflinburg, Pennsylvania, a three-day Christmas market is held offering traditional German festive food, decorations and gifts. For those unfamiliar with the holiday, here's ...