When a train approaches or an ambulance with its siren blaring nears us, we hear the sound with an increased frequency, gradually decreasing slightly. As it passes, the frequency changes abruptly to a lower one, then decreases further. This commonly encountered Doppler effect can be a valuable clue to the nature of a phenomenon seemingly completely unrelated to sound propagation: heat transport.
Cleaning procedure for a plate heat exchanger derived from data analysis based on recurrent neural networks hydrocarbonprocessing.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from hydrocarbonprocessing.com Daily Mail and Mail on Sunday newspapers.
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To live on the moon or Mars, humans will need heat and air conditioning that can operate long term in reduced gravity and temperatures hundreds of degrees above or below what we experience on Earth.