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The sense pin is used to relay the rotation speed of the fan and the control pin is an open-drain or open-collector output, which requires a pull-up to 5 V or 3.3 V in the fan. Unlike linear voltage regulation, where the fan voltage is proportional to the speed, the fan is driven with a constant supply voltage; the speed control is performed by ...
William Robinson was born in Ireland on November 22, 1840. [1]: 59 He came to the United States as a boy and lived in Brooklyn, New York for much of his adult life.[2]He received his B.A. degree in 1865 and his M.A. degree in 1868 from Wesleyan University.
The York brand has been owned since August 2005 by Johnson Controls, when it was sold to them for $3.2 billion. [ 75 ] [ 76 ] At the time of the acquisition, it was the world's largest independent manufacturer of air conditioning, heating, and refrigeration machinery.
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 ...
The way in which a fan is operated depends on its manufacturer, style, and the era in which it was made. Operating methods include: Pull-chain/pull-cord control. This style of fan is equipped with a metal-bead chain or cloth cord which, when pulled, cycles the fan through the operational speed(s) and then back to off.
A strobe light flashing at the proper period can appear to freeze or reverse cyclical motion. Special calibrated strobe lights, capable of flashing up to hundreds of times per second, are used in industry to stop the appearance of motion of rotating and other repetitively operating machinery and to measure, or adjust, the rotation speeds or ...
The term disruptive technologies was first described in depth with this book by Christensen; but the term was later changed to disruptive innovation in a later book (The Innovator's Solution). A disruptive innovation is an innovation that creates a new market and value network that will eventually disrupt an already existing market and replace ...
Little Brothers — An ad similar in vein to Peyton Manning's "United Way" commercial; here, Manning's younger brother Eli is ambassador of a mentoring program for young boys who need a strong, male role model in their lives — and someone to beat up their mean older brothers (one of which, played by Andy Samberg, is locked in the trunk of a ...