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He satisfied himself that this curious result was solely due to a strong uptake of the air. But, again, Lord Rayleigh, lending support to Professor Langley's argument, points out that the apparent cause of soaring may be the non-uniformity of the wind.
Sir William Thomson occupied the chair, and beside him on the platform were His Excellency the Governor General and Lady Lansdowne and suite, the Right Hon. Sir John Macdonald, and the president-elect, the Right Hon. Lord Rayleigh.
It results from this that the temperature becoming gradually lower as we rise in the atmosphere, at a certain altitude there can no longer remain any traces of oxygen or nitrogen, which no doubt liquefy, and the atmosphere must be almost exclusively composed of the most volatile gases, including hydrogen, which M.A. Gautier has, like Lord Rayleigh and Sir William Ramsay, proved to exist in the air.
Lord Rayleigh, the president of the British Association for the advancement of Science, Lady Rayleigh, Clara Lady Rayleigh, Hon. Hedley Strutt and Hon. Richard Strutt returned yesterday afternoon from the Rookies in a private car attached to the regular train. A TIMES reporter boarded the car about nine o'clock last night, and had a pleasant chat with Lord Rayleigh and the members of the party.
Lord Rayleigh, of the Royal Institution, had noticed in experiments with nitrogen that when samples of this element were obtained from chemicals, such samples were uniformly about one per cent, lighter in weight than similar quantities of nitrogen obtained from the atmosphere. This discrepancy led him to believe that the atmospheric nitrogen must contain some impurity.
Lord Rayleigh also obtained the same results with a film of a solution of soap and glycerine, but in this case the dark portion was observed at the top of the spectrum, the other colors arranging themselves in order in the soap film thinned by the force of gravitation, thus showing that the colors vary according to the thickness of the film.
I've been down at Cambridge time and again and stayed with the Master of one of the colleges. I can no more get at what they do and how they do it than I could get at the real meaning of a service in a Buddhist Temple. I have spent a good deal of time with Lord Rayleigh, who is the Chancellor of Cambridge University. He never goes there.
Lord Rayleigh was loudly applauded at the conclusion of his address. HON. DR. CHAVEAU in an eloquent speech in French proposed a vote of thanks to Lord Rayleigh for the interesting sketch he had given of modern science. In this scientific review Lord Rayleigh had also displayed great literary ability.
Since Lord Rayleigh first discussed this matter in the eighties of the last century, physicists have learnt to distinguish between the 'wave-velocity' of the light itself and the velocity of an 'impressed peculiarity', the so-called 'group-velocity', and it has been acknowledged that only the latter has been, and can be, directly measured.
Lord Rayleigh explained the phenomenon by referring to Young's wave theory of light. He regarded the film as having two surfaces from which light is reflected, an anterior exterior surface and a posterior interior surface.
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