Proceedings of the Royal Society of London: Containing papers of a mathematical and physical character. Series A, Volume 76Harrison and Son, 1905 - Electronic journals |
Contents
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Common terms and phrases
acid ammonia amount amplitude apparatus atmospheric Cairo carbon carbon monoxide cent Communicated by Professor constant containing cos² curves density determined diameter electric emanation energy equation ether experiments exposure F.R.S. Received Ferrous Oxalate fluorine formula function furnace gases given glass gramme helium hydrogen increase investigation iron carbonyl lever liquid air Lockyer LXXVI.-A magnetic maximum mean measured metal method milligramme mineral Monazite nickel nickel carbonyl Nile flood normal observations obtained oxide oxygen paper phase plate platinum polarising angle pressure Proc quantity radiation radio-active radium radium bromide rainfall recorded refractive refractive index ring Royal Society shown silicon lines sin² solid solution spark specific heat spectra spectrum sphere steam substance sulphuric acid surface Table temperature thorianite thorium tube uranium vapour variation velocity vibrations volume w₁ w₂ wire
Popular passages
Page 11 - The Society took a very active part in the measurement of a degree of latitude, afterwards in the length of a pendulum vibrating seconds in the latitude of London, and in the comparison of the British Standards with the Linear Measure adopted in France. A committee was appointed to compare the Society's Standard yard with that of the Exchequer. Later, in 1834, when the Standard yard was lost in the destruction by fire of the Houses of Parliament, a Commission (all the members of which were Fellows...
Page 15 - Till the war-drum throbb'd no longer and the Battleflags were furl'd In the Parliament of man, the Federation of the world.
Page 19 - In my opinion, the scientific deadness of the nation is mainly due to the too exclusively mediieval and classical methods of our higher public schools, and can only be slowly removed by making in future the teaching of Science, not from text-books for passing an examination, but, as far as may be possible, from the study of the phenomena of Nature by direct observation and experiment, an integral and essential part of all education in this country.
Page 16 - Sickness up to this time form four parts of a separate publication giving evidence in support of the view that this deadly disease is caused by the entrance into the blood, and thence into the cerebro-spinal fluid, of a species of Trypanosoma, and that these organisms are transmitted from the sick to the healthy by a kind of tsetse fly, and by it alone ; Sleeping Sickness is in short, a human tsetse fly disease.
Page 82 - So far as our knowledge goes at present it may be said that — 1. Generally speaking, the curve of Nile floods varies inversely as the mean barometric pressure of the summer months, high pressures accompany low floods, and low pressures accompany high floods. 2. These pressure variations show a great similarity over wide areas, but seem to be to some extent dependent upon the position of the Azores highpressure
Page 321 - For reasons already mentioned, the temperatures deduced from the (5) and (6) set of experiments are in all probability the most accurate in the thermoelectric series of observations. It is interesting to compare these results with those given in my former paper on the " Boiling Point of Liquid Hydrogen determined by Hydrogen and Helium Gas Thermometers...
Page 119 - Aquila discovered in 1936, and of the fainter novae of former years. An extensive series of measurements of the intensities of the interstellar H and K lines of calcium and the D lines of sodium in the spectra of 404 early-type stars has been completed. Study of the distance-intensity relationship in 23 areas in the sky has revealed no great regional differences. The form of the relationship out to a distance of 2000 parsecs has been determined from the D lines.
Page 445 - ... atmospheres, and the lowest that of hydrogen, about 20 atmospheres. In other words, the critical pressure of water is ten times that of hydrogen, and the critical pressure of carbon is ten times that of water. Now 15 tons on the square inch is not a difficult pressure to obtain in a closed vessel. In their researches on the gases from fired gunpowder and cordite, Sir Frederick Abel and Sir Andrew Noble obtained in closed steel cylinders pressures as great as 95 tons to the square inch, and temperatures...
Page 533 - R, the constant of the theory of gases, this being such that the mean kinetic energy of an electron is...
Page 453 - ... of the fractured ends reveals several points of interest. In every case the copper wires showed the cupped formation at the extreme end. This formation is evidently due to the lower tenacity of the central core, due to the presence of gas bubbles which have been drawn out into long tubes or cells. The silver wires occasionally showed a slight cupped formation, but in this case the...