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The concept of an AC-free Olympics, hatched years ago in Paris, struck right at the heart of Planet Earth’s climate conundrum. Mechanical air conditioners, an American staple since the 20th ...
Napping has its benefits, but sleep experts say naps aren't a good fit for everyone. Here's why.
Everything Bad Is Good for You: How Today's Popular Culture Is Actually Making Us Smarter is a non-fiction book written by Steven Johnson. Published in 2005, it details Johnson's theory that popular culture – in particular television programs and video games – has grown more complex and demanding over time and is making society as a whole more intelligent, contrary to the perception that ...
Heating, ventilation, and air conditioning (HVAC) is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space. Its goal is to provide thermal comfort and acceptable indoor air quality.
Air conditioning, often abbreviated as A/C (US) or air con (UK), [ 1 ] is the process of removing heat from an enclosed space to achieve a more comfortable interior temperature (sometimes referred to as 'comfort cooling') and in some cases also strictly controlling the humidity of internal air. Air conditioning can be achieved using a ...
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Sleep is a state of reduced mental and physical activity in which consciousness is altered and certain sensory activity is inhibited. During sleep, there is a marked decrease in muscle activity and interactions with the surrounding environment. While sleep differs from wakefulness in terms of the ability to react to stimuli, it still involves active brain patterns, making it more reactive than ...
Refrigerant. A refrigerant is a working fluid used in the refrigeration cycle of air conditioning systems and heat pumps where in most cases they undergo a repeated phase transition from a liquid to a gas and back again. Refrigerants are heavily regulated because of their toxicity and flammability and the contribution of CFC and HCFC ...