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    "source_title": "Encyclopaedia Britannica (1911)",
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    "chunk_id": "1911:condenser:57fefb02ade1",
    "title": "CONDENSER",
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    "verified_text": "condenser, the name given to many forms of apparatus which have for their object the concentration of matter, or bringing it into a smaller volume, or the intensification of energy. in chemistry the word is applied to an apparatus which cools down, or condenses, a vapour to a liquid; reference should be made to the article distillation for the various types in use, and also to gas (_gas manufacture_) and coal tar; the device for the condensation of the exhaust steam of a steam-engine is treated in the article steam-engine. in woollen manufactures, \"condensation\" of the wool is an important operation and is accomplished by means of a \"condenser.\" the term is also given--generally as a qualification, e.g. condensing-syringe, condensing-pump,--to apparatus by which air or a vapour may be compressed. in optics a \"condenser\" is a lens, or system of lenses, which serves to concentrate or bring the luminous rays to a focus; it is specially an adjunct to the optical lantern and microscope. in electrostatics a condenser is a device for concentrating an electrostatic charge (see electrostatics; leyden jar; electrophorus).",
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