1755 In Science
The year 1755 in science and technology involved some significant events. Astronomy * Immanuel Kant develops the nebular hypothesis in his ''Universal Natural History and Theory of Heaven'' (''Allgemeine Naturgeschichte und Theorie des Himmels''). Chemistry * June – Joseph Black's discovery of carbon dioxide ("fixed air") and magnesium is communicated in a paper to the Royal Society of Edinburgh, Philosophical Society of Edinburgh. Earth sciences * November 1 – An 1755 Lisbon earthquake, earthquake in Lisbon kills 30,000 inhabitants. * Publication of ''De Litteraria expeditione per pontificiam ditionem ad dimetiendos duos meridiani gradus a PP'', a description of the measurement of a meridian arc carried out in the Papal States by Ruđer Bošković with Christopher Maire in 1750–52. Life sciences * August Johann Rösel von Rosenhof publishes the first record of an amoeba; he names it "der kleine Proteus" ("the little Proteus"). Mathematics * Leonhard Euler's ''Institut ...
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