Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge [reprint], Band 1American Philosophical Society, 1967 |
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Häufige Begriffe und Wortgruppen
Abderhalden Adolf von Baeyer Albrecht Kossel Almagest amino acids Aristotelian Aristotle Arrhenius associates astronomy atomic volumes Bergmann Berichte Berlin biochemical celestial chem Chemical consultant Chemical industry Chemical industry Höchst chemists comets compounds Copernican Copernicus cosmology covolume disciplinary matrix elements Emil Fischer extinction Felix Hoppe-Seyler Fischer group Franz Franz Hofmeister Friedrich Galileo German Govt Hofmeister group Hofmeister's Hospital chief institute Journal Kepler Kuhn Kuhn's laboratory later liquid Max Bergmann metabolism molecular molecules nature Newtonian organic chemistry Otto papers paradigm peptide peptones pharmacology physical chemistry physicist physiology plants Post-MD Post-PhD asst Prague pressure Principia Private medical practice problem Prof chemistry Prof medicine Professor proteins published reactor research group revolution scholastic scientific set of exemplars seventeenth century solution species sphere Spiro Strassburg structure substances surface tension synthesis theory tion Traube Traube's Tycho uranium van't Hoff Vienna Warburg Wilhelm Zeitschrift
Beliebte Passagen
Seite 406 - Such is the economy of nature, that no instance can be produced, of her having permitted any one race of her animals to become extinct; of her having formed any link in her great work so weak as to be broken.
Seite 439 - Their achievement was sufficiently unprecedented to attract an enduring group of adherents away from competing modes of scientific activity. Simultaneously, it was sufficiently open-ended to leave all sorts of problems for the redefined group of practitioners to resolve.
Seite 447 - The change of motion is proportional to the motive force impressed ; and is made in the direction of the right line in which that force is impressed.
Seite 431 - M and suggested that the term 'paradigm' be replaced by 'disciplinary matrix': ' "disciplinary" because it refers to the common possession of the practitioners of a particular discipline; "matrix' because it is composed of ordered elements of various sorts, each requiring further specification'.
Seite 410 - ... rarity is the attribute of a vast number of species of all classes, in all countries. If we ask ourselves why this or that species is rare, we answer that something is unfavourable in its conditions of life ; but what that something is, we can hardly ever tell.
Seite 406 - And if this animal was indeed carnivorous, which I believe cannot be doubted, though we may as philosophers regret it, as men we cannot but thank Heaven that its whole generation is probably extinct.
Seite 439 - Like the choice between competing political institutions, that between competing paradigms proves to be a choice between incompatible modes of community life. Because it has that character, the choice is not and cannot be determined merely by the evaluative procedures characteristic of normal science, for these depend in part upon a particular paradigm, and that paradigm is at issue.
Seite 448 - How, then, are scientists brought to make this transposition? Part of the answer is that they are very often not. Copernicanism made few converts for almost a century after Copernicus
Seite 436 - ... us that gravity is an occult property, and occult causes are to be quite banished from philosophy. But to this the answer is easy: that those are indeed occult causes whose existence is occult, and imagined but not proved, but not those whose real existence is clearly demonstrated by observations. Therefore gravity can by no means be called an occult cause of the celestial motions, because it is plain from the phenomena that such a power does really exist.
Seite 409 - All that at present can be said with certainty, is that, as with the individual, so with the species, the hour of life has run its course, and is spent.