4 résultats pour "alkalin"
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Définition du mot:
ALCALIN, -INE, ALKALIN, -INE, adjectif et substantif masculin.
? Base alcaline. Hydroxyde d'un m?tal alcalin. Synonyme?: alcali?: ? 4.... il suffit qu'un acide et une base alkaline, ou terreuse soient mis en contact, dans un ?tat favorable ? leur combinaison, pour qu'il en r?sulte un nouveau produit chimique, dont la cristallisation suit des lois constantes, et dont les qualit?s n'ont plus aucun rapport avec celles de ses ?l?mens. PIERRE CABANIS. Rapports du physique et du moral de l'homme, tome 2, 1808, page 242. ? Sels alcalins. Sels dans la com...
- ALCALIN, -INE, ALKALIN, -INE, adjectif et substantif masculin.
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Thomas Edison.
While Edison was working on the electric light, he made a scientific discovery that would become important to future generations. Edison noticed that particles of carbonfrom the filament blackened the insides of his light bulbs. This effect was caused by the emission of electrons from the filament, although Edison made the discoverybefore he and other scientists knew the electron existed. Not until 1897 did British physicist J. J. Thomson prove that the blackening observed by Edison was caused b...
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Thomas Edison - USA History.
While Edison was working on the electric light, he made a scientific discovery that would become important to future generations. Edison noticed that particles of carbonfrom the filament blackened the insides of his light bulbs. This effect was caused by the emission of electrons from the filament, although Edison made the discoverybefore he and other scientists knew the electron existed. Not until 1897 did British physicist J. J. Thomson prove that the blackening observed by Edison was caused b...