Quizzes

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*KEEPING COOL* As summer's record heat wave sizzles on, dive into some history of air-conditioning and refrigeration. Answer 5 questions for a chance to win $25!
July 1, 2025
Arizona State University
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June 1, 2025
Pixel Stock/iStock / Getty Images Plus
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May 1, 2025
Refrigerant School Inc.
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April 1, 2025
Alpha Mechanicals
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March 1, 2025
AHR Expo
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Feb. 1, 2025
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Jan. 1, 2025
University of Virginia Press Office
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Dec. 2, 2024
Jake May | MLive.com
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Nov. 1, 2024

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