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  2. Control knob - Wikipedia

    en.wikipedia.org/wiki/Control_knob

    Two control knobs for a heating/cooling system. The left knob controls the temperature while the right controls the fan speed. A control knob is a rotary device used to provide manual input adjustments to a mechanical/electrical system when grasped and turned by a human operator, so that differing extent of knob rotation corresponds to different desired input.

  3. Ceiling fan - Wikipedia

    en.wikipedia.org/wiki/Ceiling_fan

    During the 1970s and into the mid-1980s, fans were often produced with a solid-state variable-speed control. This was a dial mounted either on the body of the fan or in a gang box at the wall, and when turned in either direction, continuously varied the speed at which the blades rotated—similar to a dimmer switch for a light fixture.

  4. Casablanca Fan Company - Wikipedia

    en.wikipedia.org/wiki/Casablanca_Fan_Company

    The fan rested on a ball-and-socket joint and could be mounted on a ceiling angled up to 45 degrees. In 1983, Casablanca introduced the world's first computerized ceiling fan control, called Inteli•Touch. The Inteli•Touch system was marketed as being easy to install, as the fan easily replaced a standard two-wire ceiling-mounted lighting ...

  5. 8 white noise machines for better sleep - AOL

    www.aol.com/news/8-white-noise-machines-better...

    Volume control: The experts we spoke with agreed that a volume knob is an important component to look for. “The World Health Organization (WHO) recommends that environmental noise should be ...

  6. Thermostat - Wikipedia

    en.wikipedia.org/wiki/Thermostat

    A thermostat exerts control by switching heating or cooling devices on or off, or by regulating the flow of a heat transfer fluid as needed, to maintain the correct temperature. A thermostat can often be the main control unit for a heating or cooling system, in applications ranging from ambient air control to automotive coolant control.

  7. 'Shocking and unconscionable': Joe Biden mourns victims of ...

    www.aol.com/news/shocking-unconscionable-joe...

    WASHINGTON – President Joe Biden offered his condolences Monday to the victims of a school shooting in Wisconsin and urged Congress to pass tougher gun-control laws.

  8. His parents said their son had ‘the biggest heart.’ He’s one ...

    www.aol.com/news/victims-orleans-bourbon-street...

    A loving father of two, a former college football player, and a student from the University of Alabama were among the 14 people killed when a rented pickup truck plowed into a crowd celebrating ...

  9. Variable air volume - Wikipedia

    en.wikipedia.org/wiki/Variable_air_volume

    The fan maintains a constant static pressure in the discharge duct regardless of the position of the VAV box. Therefore, as the box closes, the fan slows down or restricts the amount of air going into the supply duct. As the box opens, the fan speeds up and allows more air flow into the duct, maintaining a constant static pressure. [11]