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.
synanthrope
A synanthrope (from ancient Greek σύν sýn "together, with" and ἄνθρωπος ánthrōpos "man") is an organism that evolve...
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A kouros (plural kouroi , Ancient Greek κοῦρος ) is the modern term given to those representations of male youths which first appear i... -
A canary trap is a method for exposing an information leak by giving different versions of a sensitive document to each of several suspec...
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A synanthrope (from ancient Greek σύν sýn "together, with" and ἄνθρωπος ánthrōpos "man") is an organism that evolve...
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