A refrigerant is a compound used in a heat cycle that undergoes a phase change from a gas to a liquid and back. The two main uses of refrigerants are refrigerators/freezers and air conditioners (cf. coolant). Since it was discovered in the 1980s that the most widely used refrigerants were major causes of ozone depletion, a worldwide phaseout of ozone-depleting refrigerants has been undertaken. These are being replaced with "ozone-friendly" refrigerants.
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Epigraphy (from the Greek : ἐπιγραφή epi-graphē , literally "on-writing", "inscription") is the study of inscriptions ...
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Après-ski ( French : after skiing ) refers to going out, having drinks, dancing, and generally socializing after skiing . It is popular in ...
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