txt Famous Scientific Experiments, Explained: Volume Three: Chemistry (English Edition)
por Apex Publishing
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Descrição do livro
Lavoisier spent twelve days heating mercury in a sealed flask, weighing the whole apparatus before and after, and proved that burning does not destroy matter, it only changes what it is joined to. This book tells forty eight experiments that made chemistry the way they actually happened: as stories, first, of a person working with the tools they had. Priestley focusing sunlight through a lens onto red mercuric oxide and collecting a gas that made a candle burn brilliantly, years before anyone called it oxygen. Davy passing a current through molten potash and pulling a metal out of it that nobody had ever seen. Liebig weighing what came out of five glass bulbs to work out what a living thing is made of. Mendeleev leaving gaps in his table and predicting the exact weight of an element that had not been discovered yet. Curie turning radioactivity into a number she could follow through a purification, the four years in the shed being what that number made possible, not the discovery itself. The benzene ring, which Kekule said came to him in a dream of a snake seizing its own tail, a story he told for the first time twenty five years later, at a party in his own honour. Each chapter opens with what everyone assumes the experiment proved, then walks through what its own scientist actually built, actually saw and actually wrote down, drawn in an original diagram for this book. Where the popular version has outrun the record, the book says so plainly and names the paper, the notebook or the letter the correction comes from, so a reader can go and check it. Forty eight experiments, four centuries, one throughline: what people think they know about how chemistry was discovered, and what the documents actually say.
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