Nature, Volumen35Sir Norman Lockyer Macmillan Journals Limited, 1887 |
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Página 20
... obtained from pendulum experiments or from specimens of volcanic material . With these data we can determine the ... obtaining a value for r , or the density of the mountain . Prof. Mendenhall , who made a number of experi- ments with ...
... obtained from pendulum experiments or from specimens of volcanic material . With these data we can determine the ... obtaining a value for r , or the density of the mountain . Prof. Mendenhall , who made a number of experi- ments with ...
Página 24
... obtained the preponderance , and urged the phe- The nomenon with all the greater force to the mountain . reverse occurred after the thunderstorm had surmounted the mountain . The horizontal currents in front then obtained the ...
... obtained the preponderance , and urged the phe- The nomenon with all the greater force to the mountain . reverse occurred after the thunderstorm had surmounted the mountain . The horizontal currents in front then obtained the ...
Página 37
... obtaining a satisfactory daguerreotype of Vega with the Harvard 15 - inch equatorial , the first stellar photograph ever ... obtained at a single exposure ; an exposure of five minutes giving the spectra of all stars down to the sixth ...
... obtaining a satisfactory daguerreotype of Vega with the Harvard 15 - inch equatorial , the first stellar photograph ever ... obtained at a single exposure ; an exposure of five minutes giving the spectra of all stars down to the sixth ...
Página 42
... obtained with a relatively small consumption of gas , and with the accom- panying advantage of a low temperature within the lantern . Similar measurements should be made with a cylindrical lens and with the naked flame in the ...
... obtained with a relatively small consumption of gas , and with the accom- panying advantage of a low temperature within the lantern . Similar measurements should be made with a cylindrical lens and with the naked flame in the ...
Página 44
... obtain a maximum range in hazy weather ; and such a beam may be obtained from the electric arc with lenses of moderate size . On a few occasions when an annular lens similar to those used in the other two lanterns was placed in front of ...
... obtain a maximum range in hazy weather ; and such a beam may be obtained from the electric arc with lenses of moderate size . On a few occasions when an annular lens similar to those used in the other two lanterns was placed in front of ...
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Página 106 - And instead of this there is not a moment of any day of our lives when nature is not producing scene after scene, picture after picture, glory after glory, and working still upon such exquisite and constant principles of the most perfect beauty that it is quite certain it is all done for us and intended for our perpetual pleasure.
Página 141 - SIR,— I have the honour to state for the information of his Excellency the Governor...
Página 63 - On free waves, ie, waves in deep water, the effect is greatest. 2. In a surf, or waves breaking on a bar, where a mass of liquid is in actual motion in shallow water, the effect of the oil is uncertain, as nothing can prevent the larger waves from breaking under such circumstances, but even here it is of some service.
Página 305 - The competition is in no way confined to members of the Society, nor to residents in Australia, but is open to all without any restriction whatever, excepting that a prize will not be awarded to a member of the Council for the time being ; neither will an award be made for a mere compilation, however meritorious in its way — the communication to be successful must be either wholly or in part the result of original observation or research on the part of the contributor. The...
Página 64 - On a bar with the ebb tide it would seem to be useless to try oil for the purpose of entering. 10. For boarding a wreck, it is recommended to pour oil overboard to windward of her before going alongside. The...
Página 92 - The perpendicular is the shortest straight line that can be drawn from a given point to a given straight line ; and...
Página 106 - God rather occupy it, who made these things, very good indeed, yet is He my good, not they. And these affect me, waking, the whole day, nor is any rest given me from them, as there is from musical, sometimes in silence, from all voices. For this queen of colours, the light, bathing all which we behold, wherever I am through the day, gliding by me in varied forms, soothes me when engaged on other things, and not observing it. And so strongly doth it entwine itself, that if it be suddenly withdrawn,...
Página 79 - For the purpose of inquiring into the rate of erosion of the sea-coasts of England and Wales, and the influence of the artificial abstraction of shingle or other material in that action.
Página 63 - In cold water, the oil being thickened by the lower temperature, and not being able to spread freely, will have its effect much reduced. This will vary with the description of oil used.
Página 64 - On a bar, with the ebb tide running, it would seem to be useless to try oil for the purpose of entering. 10. For boarding a wreck, it is recommended to pour oil overboard to windward of her before going alongside.