Nature, Količina 108Sir Norman Lockyer Macmillan Journals Limited, 1921 |
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acid æther Agriculture airship animals appears application appointed Astronomical atomic weight British Association C. V. Raman Cambridge cent characters chemical chemistry chemists College colour Committee course discussion Edinburgh edition effect electric electrons energy engineering existence expedition experiments fact factors geography Geological give given hermaphroditism important India industry Institute interest investigation isotopes J. J. Thomson laboratory lecture light London Lord Rayleigh magnetic material matter ment Meteorological method molecule Mount Everest Museum NATURE November observations Observatory obtained October October 20 Ophion optical organisation organism original paper parallax period physical plants plates possible practical present problems produced Prof published radiation radio-active rainfall recent reference regarded Royal Society scientific Section September soil speaking films species Spitsbergen stars suggested temperature theory thermionic emission tion University volume
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Stran 58 - My design in this book is not to explain the Properties of Light by Hypotheses, but to propose them and prove them by reason and experiment," and he is very careful in pursuance of this design to make his statements as free from hypotheses as possible. Again and again he uses the word
Stran 58 - Do not several sorts of rays make vibrations of several bignesses, which according to their bignesses excite sensations of several Colours, much after the manner that the vibrations of the Air, according to their several bignesses, excite sensations of several sounds? " Then he suggests that the violet rays make the shorter vibrations, and the red ones the longer vibrations.
Stran 292 - led us to undertake the preliminary investigations that preceded our active work. He recommended to us the books which enabled us to form sane ideas at the outset. It was a helping hand at a critical time, and we shall always be grateful.
Stran 330 - of the body, and to a long line of male and female ancestors separated by hundreds, and even thousands, of generations from the present time ; and these characters, like those written on paper in invisible ink, lie ready to be evolved whenever the organism is disturbed by certain
Stran 335 - to put forward considers, therefore, radiation as a high species of vibration in the lines of force which are known to connect particles, and also masses, of matter together. It endeavours to dismiss the
Stran 58 - 1000 miles and becoming infinitesimal in comparison with its original amount, to act upon a wooden ship in such a way that a plank of that ship flew out of its place to a height of 100 ft. How does the energy get from the one place to the other?
Stran 292 - the practicability of mechanical flight -—and for the next stage, which is the commercial and practical development of the idea, it is probable that the world may look to others. The world, indeed,
Stran 335 - By line of magnetic force, or magnetic line of force, or magnetic curve, I mean that exercise of magnetic force which is exerted in the lines usually called magnetic curves, and which equally exist as passing from or to magnetic poles, or forming concentric circles round an electric current.
Stran 330 - crowded with invisible characters proper to both sexes, to both the right and left sides of the body, and to a long line of male and female ancestors separated by hundreds, and even thousands, of generations from the present time ; and these characters, like those written on paper in invisible ink, lie ready to be evolved whenever the organism is disturbed by certain
Stran 292 - be supine if it does not realise that a new possibility has come to it, and that the great universal highway overhead is now soon to be opened.