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  2. Cross ventilation - Wikipedia

    en.wikipedia.org/wiki/Cross_ventilation

    Cross ventilation is a natural phenomenon where wind, fresh air or a breeze enters upon an opening, such as a window, and flows directly through the space and exits through an opening on the opposite side of the building (where the air pressure is lower). This produces a cool stream of air and as well as a current across the room from the ...

  3. Windcatcher - Wikipedia

    en.wikipedia.org/wiki/Windcatcher

    Aghazadeh Mansion in Abarkooh, Iran, has an elaborate 18-m windtower with two levels of openings, plus some smaller windtowers. A windcatcher, wind tower, or wind scoop (Persian: بادگیر) is a traditional architectural element, originated in Iran (Persia), used to create cross ventilation and passive cooling in buildings. [ 1 ]

  4. Pierre Vernier - Wikipedia

    en.wikipedia.org/wiki/Pierre_Vernier

    A Vernier caliper using the scale invented by Pierre Vernier. Pierre Vernier (French pronunciation: [pjɛʁ vɛʁnje]; 19 August 1580 at Ornans, Franche-Comté (at that time ruled by the Spanish Habsburgs, now part of France) – 14 September 1637, same location) was a French mathematician and instrument inventor. He was the inventor and eponym ...

  5. Evaporative cooler - Wikipedia

    en.wikipedia.org/wiki/Evaporative_cooler

    Porous pottery and coarse cloth maximize the area for evaporation. An evaporative cooler (also known as evaporative air conditioner, swamp cooler, swamp box, desert cooler and wet air cooler) is a device that cools air through the evaporation of water. Evaporative cooling differs from other air conditioning systems, which use vapor-compression ...

  6. Vernier scale - Wikipedia

    en.wikipedia.org/wiki/Vernier_scale

    The use of the vernier scale is shown on a vernier caliper which measures the internal and the external diameters of an object. The vernier scale is constructed so that it is spaced at a constant fraction of the fixed main scale. So for a vernier with a constant of 0.1, each mark on the vernier is spaced 9/10 of those on the main scale.

  7. Calipers - Wikipedia

    en.wikipedia.org/wiki/Calipers

    A vernier caliper clamping on an object. Caliper (s) or calliper (s) are an instrument used to measure the linear dimensions of an object or hole; namely, the length, width, thickness, diameter or depth of an object or hole. The word "caliper" comes from a corrupt form of caliber. [ 1 ][ 2 ][ 3 ]

  8. Beaufort scale - Wikipedia

    en.wikipedia.org/wiki/Beaufort_scale

    Beaufort scale. A ship in a force 12 (" hurricane -force") storm at sea, the highest rated on the Beaufort scale. The Beaufort scale (/ ˈboʊfərt / BOH-fərt) is an empirical measure that relates wind speed to observed conditions at sea or on land. Its full name is the Beaufort wind force scale.

  9. Friedrich Air Conditioning - Wikipedia

    en.wikipedia.org/wiki/Friedrich_Air_Conditioning

    Chuck Campbell, President. Number of employees. 194. Parent. Rheem. Website. friedrich.com. Friedrich Air Conditioning is an American privately held company that manufactures commercial-grade room air conditioners and specialty cooling products for residential and light commercial applications. The company is based in Uptown, San Antonio, Texas.

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