Nature, Količina 107Sir Norman Lockyer Macmillan Journals Limited, 1921 |
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absolute magnitude æther apparatus apparent magnitude appear application appointed April Association Astronomical atomic atomic weight ball biological Britain British Cambridge cent chemical Chemistry coal College colloidal colour Council direction edition effect electric electrons energy Engineers erythrite experiments Geology give given important increase industrial interest investigation isotopic isotopic number J. J. Thomson J. R. Partington Joseph Larmor laboratory larvæ lectures light London magnetic March measure ment metal method molecules Museum Napier Shaw National NATURE observations Observatory obtained orbit organisation Pamir paper parallax Peltier Effect period photographic physical plants plates present president problems produced Prof published recent relative Report rotation ROYAL INSTITUTION Royal Society scientific Section SOCIETY OF MEDICINE solution species spectra stars structure surface temperature theory tion University various velocity venereal disease
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Stran l - Johnson's (CM) Rapid Methods for the Chemical Analysis of Special Steels, Steel-Making Alloys and Graphite...
Stran 171 - ... of distinguished eminence in science, literature, or the arts, or for public services.
Stran 45 - He was an Associate Member of the Institution of Civil Engineers and a Member of the Institution of Mechanical Engineers.
Stran 3 - ... should I be careful to choose that life which will be the most elevating in its character. To continue much longer overwhelmed by business cares and with most of my thoughts wholly upon the way to make more money in the shortest time, must degrade me beyond hope of permanent recovery. I will resign business at thirty-five, but during the ensuing two years I wish to spend the afternoons in receiving instruction and in reading systematically.
Stran 255 - The measurements of ma^s made are not absolute, but relative to lines which correspond to known masses. Such lines due to hydrogen, carbon, oxygen and their compounds are generally present as impurities or purposely added, for pure gases are not suitable for the smooth working of the discharge tube. The two principal groups of these reference lines are the...
Stran 267 - The lectures are addressed to students of the university and to others interested in the subject. Admission free, without ticket.
Stran 255 - Atoms of the same element are similar to one another and equal in weight." Of course, if we take this as a definition of the word " Element " it becomes a truism, but, on the other hand, what Dalton...
Stran 258 - Protons and electrons may therefore be regarded as the bricks out of which atoms have been constructed. An atom of atomic weight m is turned into one of atomic weight m +1 by the addition of a proton plus an electron. If both enter the nucleus the new element will be an isotope of the old one, for the nuclear charge has not been altered. On the other hand, if the proton alone enters the nucleus, and the electron remains outside, an element of next higher atomic number...
Stran 257 - ... rule is extremely small. This enables the most sweeping simplifications to be made in our ideas of mass. The original hypothesis of Prout, put forward in 1815. that all atoms were themselves built of atoms of protyle, a hypothetical element which he tried to identify with hydrogen.
Stran 3 - Thirty-three and an income of $50,000 per annum! By this time two years I can so arrange all my business as to secure at least $50,000 per annum. Beyond this never earn — make no effort to increase fortune but spend the surplus each year for benevolent purposes. Cast aside business forever, except for others. Settle in Oxford and get a thorough education, making the acquaintance of literary men — this will take three years' active work — pay especial attention to speaking in public.