How Air Conditioners Work. Air conditioners use refrigeration to chill indoor air, taking advantage of a remarkable physical law: When a liquid converts to a gas (in a process called phase conversion), it absorbs heat.
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In the usual and often bewildering Long Island manner, Baldwin is in fact not a town at all, but rather an unincorporated hamlet within Nassau County's town of Hempstead, which with some 729,000 residents is the largest town in terms of population not only on Long Island but also in the whole country.