| dbo:abstract |
The year 1774 in science and technology involved some significant events. (en) * Le chimiste suédois Carl Wilhelm Scheele découvre le chlore en faisant réagir de l'acide chlorhydrique sur du dioxyde de manganèse et l’appelle acide muriatique déphlogistiqué. Il découvre l'oxyde de barium. * Johan Gottlieb Gahn isole le manganèse à partir du dioxyde de manganèse contenu dans la pyrolusite. * Nevil Maskelyne tente avec un groupe de scientifiques britanniques de la Royal Society l'expérience du Schiehallion pour déterminer la densité moyenne de la Terre et sa masse. (fr) В 1774 году произошли различные научные и технологические события, некоторые из которых представлены ниже. (ru) |
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The year 1774 in science and technology involved some significant events. (en) * Le chimiste suédois Carl Wilhelm Scheele découvre le chlore en faisant réagir de l'acide chlorhydrique sur du dioxyde de manganèse et l’appelle acide muriatique déphlogistiqué. Il découvre l'oxyde de barium. * Johan Gottlieb Gahn isole le manganèse à partir du dioxyde de manganèse contenu dans la pyrolusite. * Nevil Maskelyne tente avec un groupe de scientifiques britanniques de la Royal Society l'expérience du Schiehallion pour déterminer la densité moyenne de la Terre et sa masse. (fr) В 1774 году произошли различные научные и технологические события, некоторые из которых представлены ниже. (ru) |
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1774 in science (en) 1774 en science (fr) 1774 na ciência (pt) Vetenskapsåret 1774 (sv) 1774 год в науке (ru) |
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