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More than 5000 entries on the history, culture and life of Britain (published in 1993 by Macmillan, now out of print)
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Joseph Black
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(1728–99) Scottish chemist and physicist, known in particular for his demonstrations of what he called 'fixed air' (carbon dioxide) and 'latent heat' (the heat absorbed, without a rise in temperature, while a solid is changing to a liquid or a liquid to a gas).
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