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The majority of the walk buttons don’t actually do anything, so stop pressing them

Vaughn Langless revealed to investigators for Air Conditioning, Heating and Refrigeration News in 2003 that “in 1987, I was involved with the refurbishment of an office facility in Rochester, New York, to make facilities for about 200 telemarketers’ cubicles.” New rooftop heaters and air-handling systems were installed as part of …

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How Does a TV Set Operate?

Look at your modern-day TV, and you witness nothing less than a technological miracle. Scientists began experimenting with the concept of television more than a century ago. But it wouldn’t be until the 1939 World’s Fair that the Radio Corporation of America introduced it to the general audience. Before TV …

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