Les grands froids

Les grands froids

Les grands froidsNous estimons d'habitude l'tat calorifique d'un corps par l'impression qu'il produit sur la main. Le...
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SKU: gb-43760-ebook
Product Type: Books
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Author: Bouant, Emile,1847-1926
Format: eBook
Language: French
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Les grands froids

Les grands froids

$19.99 $9.99

Les grands froids

$19.99 $9.99
Author: Bouant, Emile,1847-1926
Format: eBook
Language: French

Les grands froids

Nous estimons d'habitude l'tat calorifique d'un corps par l'impression qu'il produit sur la main. Le corps nous semble chaud ou froid suivant qu'il donne de la chaleur la main ou qu'il lui en enlve. Mais le jugement que nous portons ainsi est incomplet et sujet bien des erreurs. Il nous suffira de le montrer par quelques exemples. Plongeons la main droite dans un vase rempli d'eau trs froide, la gauche dans un second vase rempli d'eau trs chaude. Aprs quelques instants d'attente, sortons les mains du liquide et plongeons-les toutes les deux la fois dans de l'eau tide: nous la trouverons chaude la main droite, froide la gauche. Voici, rapproches l'une de l'autre, une plaque de cuivre et une de bois: la main, tendue de faon s'appuyer sur les deux plaques, trouve la premire beaucoup plus froide que la seconde, quoiqu'elles soient certainement toutes les deux dans le mme tat calorifique. C'est que le cuivre, qui conduit bien la chaleur, refroidit la main beaucoup plus rapidement que ne le fait le bois. ......Buy Now (To Read More)

Product details

Ebook Number: 43760
Author: Bouant, Emile
Release Date: Sep 17, 2013
Format: eBook
Language: French

Contributors


Illustrator: Weber, Theodore

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