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  2. MythBusters (2005 season) - Wikipedia

    en.wikipedia.org/wiki/MythBusters_(2005_season)

    A rolling stone can truly gather no moss. Confirmed A stone rolling down a natural hill can "gather moss" by collecting it from the ground, so a machine that would keep a stone rolling continuously was built to see if moss would grow under such conditions. After six months of rolling, no moss was found on the stone.

  3. How to safely use a space heater when it gets cold

    www.aol.com/lifestyle/safely-space-heater-gets...

    If the space heater's plug or cord, the wall outlet or faceplate is hot, stop using the heater. Call an electrician to check the plug or faulty wall outlet, or a repair person if the cord is hot.

  4. Convection heater - Wikipedia

    en.wikipedia.org/wiki/Convection_heater

    A convection heater, also known as a convector heater, is a type of heater that utilizes convection currents [1] to heat and circulate air. These currents move through the appliance and across its heating element, [ 2 ] using thermal conduction [ 3 ] to warm the air and decrease its density relative to colder air, causing it to rise.

  5. Air preheater - Wikipedia

    en.wikipedia.org/wiki/Air_preheater

    This arrangement is for cooling the lower end of the shaft, as this end of the vertical rotor is on the hot end of the ducting. The top end of the rotor has a simple roller bearing to hold the shaft in a vertical position. The rotor is built up on the vertical shaft with radial supports and cages for holding the baskets in position.

  6. Rhytidiadelphus squarrosus - Wikipedia

    en.wikipedia.org/wiki/Rhytidiadelphus_squarrosus

    Rhytidiadelphus squarrosus is a species of moss known as springy turf-moss in the United Kingdom, [2] [3] and square goose neck moss in the United States. [1] [4] It is widespread in Eurasia and North America, and has been introduced to the Southern Hemisphere. It has broad ecological tolerances, and is usually found in man-made habitats such ...

  7. Firestop - Wikipedia

    en.wikipedia.org/wiki/Firestop

    They receive a fire rating by combining materials in an arrangement specific to the item (a pipe or cable, for example) penetrating the fire-rated wall or floor and the construction arrangement of the fire-rated wall or floor. A two-hour-rated pipe-penetration firestop may consist of a layer of caulking over packed mineral wool. The arrangement ...

  8. Underfloor heating - Wikipedia

    en.wikipedia.org/wiki/Underfloor_heating

    Underfloor heating pipes, before they are covered by the screed. Underfloor heating and cooling is a form of central heating and cooling that achieves indoor climate control for thermal comfort using hydronic or electrical heating elements embedded in a floor.

  9. Induction shrink fitting - Wikipedia

    en.wikipedia.org/wiki/Induction_shrink_fitting

    Induction heating is a non contact heating process which uses the principle of electromagnetism induction to produce heat in a work-piece. In this case thermal expansion is used in a mechanical application to fit parts over one another, e.g. a bushing can be fitted over a shaft by making its inner diameter slightly smaller than the diameter of the shaft, then heating it until it fits over the ...

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