Voltaire
,
Elémens de la philosophie de Neuton : mis à la portée de tout le monde
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DE LA PHILOSOPHIE
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rience en expérience, juſqu’à meſurer l’eſpa-
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ce qu’occupe chacune de ces couleurs; </
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on s’eſt apperçu que ces eſpaces ſont entre
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eux les mêmes que ceux des longueurs d’u-
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ne corde, qui donne les ſept tons de la Mu-
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ſique.</
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<
s
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">J’avois toujours entendu dire, que c’é-
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toit dans Kirker, que Neuton avoit puiſé
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cette découverte de l’analogie de la lumie-
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re & </
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<
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">Kirker en effet dans ſon Ars
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">Choſe
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très-re-
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marqua-
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ble dans
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Kirker.</
note
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Magna Lucis & </
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">dans d’autres Li-
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vres encore, appelle le Son le Singe de la
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lumiere. </
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<
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">Quelques perſonnes en inſé-
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roient, que Kirker avoit connu ces rap-
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ports; </
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<
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">mais il eſt bon, de peur de mépri-
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ſe, de mettre ici ſous les yeux ce que dit
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Kirker, page 146. </
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<
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dit-il, qui ont une voix haute & </
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tiennent de la nature de l’Ane: </
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<
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indiſcrets & </
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">pétulans, comme on ſait
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que ſont les Anes; </
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<
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ble à la couleur noire. </
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">Ceux dont la
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voix eſt grave d’abord, & </
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<
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tiennent du Bœuf; </
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<
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">ils ſont, comme lui,
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triſtes & </
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au bleu céleſte”.</
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