Philosophical MagazineTaylor & Francis., 1874 - Matter |
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Results 6-10 of 79
Page 55
... appears to bubble and boil , the melting is expedited , which economizes fuel ; and the quality of iron is so much im- proved that for toughness and hardness it can hardly be equalled . It appears that some , if not all , of the ...
... appears to bubble and boil , the melting is expedited , which economizes fuel ; and the quality of iron is so much im- proved that for toughness and hardness it can hardly be equalled . It appears that some , if not all , of the ...
Page 56
... appear to increase until the temperature arrived near a certain point ; and then , as the heat continued to diminish ... appears to undergo a change , though this has yet to be strictly determined . IX . Notices respecting New Books ...
... appear to increase until the temperature arrived near a certain point ; and then , as the heat continued to diminish ... appears to undergo a change , though this has yet to be strictly determined . IX . Notices respecting New Books ...
Page 67
... appear to be specially adapted to cases where the galvanic current has to be frequently broken , as in telegraphy ; for at each period of rest it renews its strength by the absorption or diffusion of more oxygen from the air . May 1 ...
... appear to be specially adapted to cases where the galvanic current has to be frequently broken , as in telegraphy ; for at each period of rest it renews its strength by the absorption or diffusion of more oxygen from the air . May 1 ...
Page 70
... appears , is rigorous , seem nevertheless to be the best ; and fortunately the law which the effect of the additions of air follows is of such a decided cha- racter as to be easily distinguished ; and the two methods give results which ...
... appears , is rigorous , seem nevertheless to be the best ; and fortunately the law which the effect of the additions of air follows is of such a decided cha- racter as to be easily distinguished ; and the two methods give results which ...
Page 78
... appears more vivid and of a deeper red than that of the extraordinary ray ; at least this is what I have distinctly observed in two strongly fluorescent specimens . The fluorescence of spar has besides been studied by M. Becquerel with ...
... appears more vivid and of a deeper red than that of the extraordinary ray ; at least this is what I have distinctly observed in two strongly fluorescent specimens . The fluorescence of spar has besides been studied by M. Becquerel with ...
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Common terms and phrases
acid æther alloy amount angle of incidence Atlantic axis Biotite Carpenter chemical colour column condensation conductor copper corresponding corundum Croll crystals determined difference direction disk distance effect electricity electrodes electromotive force equal equator equatorial experiments fact galvanometer gas-effect glass grating gravity Gulf-stream heat hemisphere hexagonal hydrogen inches increase inductor intertropical iron laminæ light lines liquid macling magnetic mean measure mercury metals mica miles millims mineral molecules moment of inertia motion needle observations obtained ocean-currents oceanic circulation Oolite optical angle oxide oxygen palladium paper parallel particles phenomena Phil phlogopite plane plates platinum polar portion position pressure prism produced quantity ratio rays reflected regions resistance rotation selenium Siemens's silver solar sound specific gravity spectra spectrum stream supposed surface temperature theory thickness tion transparent tube vermiculite vibration vis viva water of crystallization winds wire
Popular passages
Page 46 - SATURDAY REVIEW. Wilson (JM) — ELEMENTARY GEOMETRY. Books I. II. III. Containing the Subjects of Euclid's first Four Books. New Edition, following the Syllabus of the Geometrical Association. By JM WILSON, MA, late Fellow of St. John's College, Cambridge, and Mathematical Master of Rugby School.
Page 394 - For nearly two years I have felt quite sure that the proper explanation of voltaic action in the common voltaic arrangement is very near Volta's, which fell into discredit because Volta or his followers neglected the principle of conservation of force.
Page 363 - ... WILLIAM STIRLING MAXWELL, KT, Bart., MP 8vo. is. MORTON — THE TREATMENT OF SPINA BIFIDA BY A NEW METHOD. By JAMES MORTON, MD, Professor of Materia Medica, Anderson's College, and Surgeon and Clinical Lecturer of Surgery in the Glasgow Royal Infirmary.
Page 381 - The paper concludes as follows : — " An interesting physical speculation connected with this working hypothesis is the effect on the period of duration of a star's heat which •would be brought about by assuming that the original atoms of which a star is composed are possessed of the increased potential energy of combination which this hypothesis endows them with. From the earliest phase of a star's life the dissipation of energy would, as it were, bring into play a new supply of heat, and so...
Page 250 - ... was found to depend on the order of the spiral arrangement. If in building up the pile the marked side of each successive lamina is turned through an angle of 60°...
Page 364 - Rutherford's researches, very small. As the electric arc in its usual vertical position gave all the lines from pole to pole, the lamp was placed on its side, and the arc used in a horizontal position, the slit being vertical. The dense core of the arc then gave all the short lines in the centre of the field, the longer ones extending beyond them on either side. In order to obtain a scale, it was resolved to photograph the solar spectrum immediately adjacent to the metallic spectrum under examination....
Page 365 - We have here, then, a case of coincident lines, in which the one that is long and bright in one spectrum is short and faint in the other, and a case of a line said to be coincident in two spectra being, though always visible in one, sometimes absent in the other of them, and only appearing in it when the two substances were mixed. The hypothesis of impurity at once explains the whole case, even without the third line, which renders the fact of mixture certain. The longest lines of calcium occur in...
Page 363 - I am of opinion that the syren, performing from 2000 to 2400 revolutions a second, or, in other words, generating from 400 to 480 waves per second, best meets the atmospheric conditions. "We varied the pressure from 40 to 80 Ibs. on the square inch ; and though the intensity did not appear to rise in proportion to the pressure, the higher pressure yielded the hardest and most penetrating sound. The 20th was a rainy day with strong wind. Up to a distance of 5£ miles the syren continued to be heard...
Page 41 - ... untwisted when a current traverses the helix and magnetizes the wire. M. Matteucci has shown that twisting a magnet lessens its force, but stretching a magnet slightly adds to its power} ; and according to M. Guillemin, a strip of iron bent by its own weight is partly straightened by magnetization.
Page 370 - Canada balsam in a wide-mouthed square bottle ; let light, polarized in a vertical plane, be transmitted through the fluid ; observe the light through a Nicol's prism, and turn the prism so as to cut off the light ; insert a spatula in the Canada balsam, in a vertical plane passing through the eye. Whenever the spatula is moved up or down in the fluid, the light reappears on both sides of the spatula ; this continues only so long as the spatula is in motion. As soon as the motion stops, the light...