Frases de Jöns Jacob Berzelius (8 citas)

Jöns Jacob Berzelius: 8 frases 4 Me gusta

Jöns Jacob Berzelius Frases y Citas

“Un laboratorio ordenado significa un químico perezoso.”

Jöns Jacob Berzelius

Fuente: Berzelius a Nils Sefstrom, 8 de julio de 1812. Citado en: C. G. Bernard, Berzelius as a European Traveller, en E. M. Melhardo y T. Frängsmyr (eds.), Enlightenment Science in the Romantic Era (1992), 225.

“El hábito de una opinión a menudo conduce a la plena convicción de su verdad, oculta las partes más débiles de la misma, y nos hace incapaces de aceptar las pruebas en su contra.”

Jöns Jacob Berzelius

Fuente: Ira Freund, The Study of Chemical Composition (1904), 31. Citado en: Carl Schorlemmer, The Rise and Development of Organic Chemistry (1894), 49.

De verdad

Jöns Jacob Berzelius: Frases en inglés

“Chemical signs ought to be letters, for the greater facility of writing, and not to disfigure a printed book … I shall take therefore for the chemical sign, the initial letter of the Latin name of each elementary substance: but as several have the same initial letter, I shall distinguish them in the following manner:— 1. In the class which I shall call metalloids, I shall employ the initial letter only, even when this letter is common to the metalloid and to some metal. 2. In the class of metals, I shall distinguish those that have the same initials with another metal, or a metalloid, by writing the first two letters of the word. 3. If the first two letters be common to two metals, I shall, in that case, add to the initial letter the first consonant which they have not in common: for example, S = sulphur, Si = silicium, St = stibium (antimony), Sn = stannum (tin), C = carbonicum, Co = colbaltum (colbalt), Cu = cuprum (copper), O = oxygen, Os = osmium, &c.”

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Jöns Jacob Berzelius

Jöns Jacob Berzelius, Essay on the Cause of Chemical Proportions, and on some circumstances relating to them: together with a short and easy method of expressing them', Annals of Philosophy, 1814, 3,51-2.

“In arranging the bodies in order of their electrical nature, there is formed an electro-chemical system which, in my opinion, is more fit than any other to give an idea of chemistry.”

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Jöns Jacob Berzelius

Jöns Jacob Berzelius, Essai sur le théorie des proportions chimiques (1819). Translated in Henry M. Leicester and Herbert S. Klickstein, A Source Book in Chemistry 1400-1900 (1952), 260.

“Every chemical combination is wholly and solely dependent on two opposing forces, positive and negative electricity, and every chemical compound must be composed of two parts combined by the agency of their electrochemical reaction, since there is no third force. Hence it follows that every compound body, whatever the number of its constituents, can be divided into two parts, one of which is positively and the other negatively electrical.”

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Jöns Jacob Berzelius

Jöns Jacob Berzelius Essai sur la théorie des proportions chemiques (1819), 98. Quoted by Henry M. Leicester in article on Bessel in Charles Coulston Gillespie (editor), Dictionary of Scientific Biography (1981), Vol. 2, 94.

“A tidy laboratory means a lazy chemist.”

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Jöns Jacob Berzelius

Jöns Jacob Berzelius to Nils Sefstrom, 8th July 1812. In C. G. Bernard, Berzelius as a European Traveller, in E. M. Melhardo and T. Frängsmyr (eds.), Enlightenment Science in the Romantic Era (1992), 225.