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Calcul de la vitesse de quelques eaux salines au moyen du salinograde.
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Indications de l’électricité
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Températures
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Indications corrigées
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Rapport des […] 5 et 15 […]
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1
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5°
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0.92
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100804
100718
= 1.001
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92[…]
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25°
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1.28
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100521
100718
= 998
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1.278
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10
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5°
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9.61
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107118
106851
= 1.0024
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9.633
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25°
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10.51
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106525
106851
= .9967
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10.475
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20
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5°
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19.39
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112984
112606
= 38/11260
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A ajouter = 19.455
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25°
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20.69
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113416
113847
= 43/1138
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A retrancher = 20.59
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30
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5°
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29.23
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119175
118715
= 46/11871
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A ajouter = 293.4
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25°
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30.83
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119422
119916
= 49/11991
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A retrancher = 30.71
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Ainsi, pour 30 k. par exemple, et la température de 25° au lieu de 30.83, on a 30.71.
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Ecole
Polytechnique
