The Chemical News and Journal of Industrial Science, Bindi 122-123Chemical news office., 1921 |
Aðrar útgáfur - View all
Common terms and phrases
action alcohol alkali ammonia amount analysis apparatus application atomic weight augite boiling British calcium calcium hydride carbon carbon dioxide cent Chem chemical Chemistry chemists chloride coal colour compounds containing copper crystals D.Sc density deposit determined diamonds dioxide Directors distillation effect electric electrolytic electrons elements experiments flocculation fluoride fuel gallium give glass grms heat hydrazine hydrochloric acid hydrogen hydrogen chloride hydroxide industry iron laboratory lignin lime liquid London LUDGATE HILL manufacture material ment Messrs metal method mineral mixture molecular molecules nickel nitrate nitrogen obtained oxide oxygen paper Patent phenyl plant potassium precipitate present pressure production Prof pure quantity reaction Royal Institution salt selenium silica slag Society soda sodium sodium hydroxide soil solid soluble solution specific substances sulphate sulphide sulphuric acid surface temperature theory tion Trade tube valencies vapour volume zinc
Vinsælir kaflar
Síða 138 - Definite and complete in its area as it is, it is but a well-drawn part of a great chart, in which all physical science will be represented with every property of matter shown in dynamical relation to the whole. The prospect we now have of an early completion of this chart, is based on the assumption of atoms. But there can be no...
Síða 147 - mustard gas,' the reply was: — 'Why are you worrying about this when you know perfectly well that this is not the gas we shall use in the next war?' I hold no brief for preventive medicine, which is well able to fight its own case. I would only say that it is the legitimate business of preventive medicine to preserve by all known means the health of any body of men, however large or small, committed to its care. It is not to its discredit if, by knowledge and skill, the numbers so maintained run...
Síða 138 - Science advances not so much by fundamental alterations in its beliefs as by additions to them. Dalton would equally have regarded the atom " as a piece of matter of measurable dimensions, with shape, motion, and laws of action, intelligible subjects of scientific investigation.
Síða 141 - Service, may deduct from their actual age any time not exceeding five years which they may have spent in such service.
Síða 234 - Jackson's law that destructive lesions do not cause positive effects, but induce a negative condition, which permits positive symptoms to appear.
Síða 277 - Through this obscure segment, the colour of which passes from brown to violet, the stars are seen as through a thick fog. A wider arc, but one of brilliant light, at first white, then yellow, bounds the dark segment. Sometimes the luminous arc appears agitated for entire hours by a sort of effervescence and by a continual change of form before the rising of the rays and columns of light which ascend as far as to the zenith. The more intense the emission of the polar light the more vivid are its colours,...
Síða 68 - ALL COURSES AND DEGREES ARE OPEN TO BOTH MEN AND WOMEN STUDENTS. In the Medical School Courses of Instruction are arranged to meet the requirements of other Universities and Licensing Bodies.
Síða 145 - ... as have been observed to occur. There would appear, therefore, ample scope for the chemist in determining with the highest attainable accuracy the departures from the whole-number rule, since it is evident that much depends upon their exact extent. These considerations have already engaged the attention of chemists. For some years past, a small international committee, originally appointed in 1903, has made and published an annual report in which they have noted such determinations of atomic...
Síða 138 - Dalton, as a legacy from Newton, had imagined them. Lord Kelvin, unlike the chemists, had never been in the habit of 'evading questions as to the hardness or indivisibility of atoms by virtually assuming them to be infinitely small and infinitely numerous.
Síða 62 - ... family washing. That the university administration in America does not always appreciate the efforts of the research man is illustrated in the case of a certain state university which had several men on its staff who were interested in research. These men had published a number of papers in foreign scientific journals. This came to the ears of the Board of Regents. As it happened the Governor of the State was a member of the Board and he lost no time in communicating with the offending professors...