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2. Crookes radiometer - Wikipedia

   en.wikipedia.org/wiki/Crookes_radiometer

   The Crookes radiometer (also known as a light mill) consists of an airtight glass bulb containing a partial vacuum, with a set of vanes which are mounted on a spindle inside. The vanes rotate when exposed to light, with faster rotation for more intense light, providing a quantitative measurement of electromagnetic radiation intensity.

3. Computer fan control - Wikipedia

   en.wikipedia.org/wiki/Computer_fan_control

   A fan controller with LEDs indicating fan status and potentiometers and switches to control fan speeds. Another method, popular with PC hardware enthusiasts, is the manual fan speed controller. They can be mounted in an expansion slot or a 5.25" or 3.5" drive bay or come built into a computer's case. Using switches or knobs, attached fans can ...

4. Computer fan - Wikipedia

   en.wikipedia.org/wiki/Computer_fan

   Six 80 mm fans, commonplace components in earlier personal computers (either as a pair or mixed with fans of other sizes) A 30-millimetre (1.2 in) PC fan in a square black plastic chassis lying on the hub of a circular one of translucent plastic sized 250 mm (9.8 in)

5. WELL Building Standard - Wikipedia

   en.wikipedia.org/wiki/WELL_Building_Standard

   T04 Individual Thermal Control, giving personal thermal control for both heating and cooling receives each 1 point, for cooling, implementing user-adjustable thermostat, desk fan or ceiling fan, chair with mechanical cooling system, other solution that affecting PMV change of -0.5 within 15 minutes without changing the PMV for other occupants ...

6. Here's your New Year's Eve weather forecast. And is the polar ...

   www.aol.com/heres-years-eve-weather-forecast...

   One big exception will be in the East, where a storm will soak portions of the northeastern U.S. with rain and will even whiten some areas with light snow on New Year's Eve.

7. Fan (machine) - Wikipedia

   en.wikipedia.org/wiki/Fan_(machine)

   A household electric fan A large cylindrical fan. A fan is a powered machine that creates airflow. A fan consists of rotating vanes or blades, generally made of wood, plastic, or metal, which act on the air. The rotating assembly of blades and hub is known as an impeller, rotor, or runner. Usually, it is contained within some form of housing ...