Elementary MeteorologyK. Paul, Trench & Company, 1898 - 410 pagini |
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Pagina 92
... America . This shows us that the amount of vapour present in the air is a factor which we must not disregard when dealing with this question , and yet our knowledge of the dis- tribution of vapour in the atmosphere is very imperfect ...
... America . This shows us that the amount of vapour present in the air is a factor which we must not disregard when dealing with this question , and yet our knowledge of the dis- tribution of vapour in the atmosphere is very imperfect ...
Pagina 118
... America , according to Humboldt , the traveller on entering a wood finds apparently a heavy shower falling , while outside the wood the sky is perfectly clear . Here the formation of dew takes place at the tops of the trees , and so ...
... America , according to Humboldt , the traveller on entering a wood finds apparently a heavy shower falling , while outside the wood the sky is perfectly clear . Here the formation of dew takes place at the tops of the trees , and so ...
Pagina 123
... America , about 9,000 feet ; in the Tyrol it sinks to about 5,000 , and in these islands , out of a great 1 The appearance of a cloud - flag streaming from an isolated peak , when the wind is strong , is due to an eddy action . The warm ...
... America , about 9,000 feet ; in the Tyrol it sinks to about 5,000 , and in these islands , out of a great 1 The appearance of a cloud - flag streaming from an isolated peak , when the wind is strong , is due to an eddy action . The warm ...
Pagina 190
... America , even greater changes occur . The way in which changes of temperature tend to produce electrical disturbance is not as yet explained , but it is undeniable that they form an essential con- dition for the generation of a ...
... America , even greater changes occur . The way in which changes of temperature tend to produce electrical disturbance is not as yet explained , but it is undeniable that they form an essential con- dition for the generation of a ...
Pagina 194
... extends from the Arctic circle to 75 ° . In America it lies much farther broader , stretching from 50 ° to 62 ° . south and is North of this band auroras are less frequent and when visible are usually 194 ELEMENTARY METEOROLOGY .
... extends from the Arctic circle to 75 ° . In America it lies much farther broader , stretching from 50 ° to 62 ° . south and is North of this band auroras are less frequent and when visible are usually 194 ELEMENTARY METEOROLOGY .
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Termeni și expresii frecvente
action America amount anemometers anti-cyclones appears Arctic Atlantic atmosphere atmospherical circulation barometer blows bulb calm Cape changes Chapter circle circles of latitude climate cloud coast cold column condensation continents curve direction diurnal earth east Easterly eastern electricity equator equatorial evaporation fact fall feet gauge globe Gulf Stream heat height high latitudes hygrometer inches Indian Ocean instrument isobars isotherm isothermal charts January July land latent heat lightning lower lowest mean temperature mercury Meteorological miles moisture Monsoon month motion mountain North northern observations Pacific pass perature phenomena phenomenon Plate pressure produced radiation rain rainfall range readings region rise round scale Siberia side snow South South-east southern hemisphere stations storms strata stratum summer surface temperature thermometer thunderstorms tion Trade wind tropical tube upper vapour velocity warm weather Westerly western winter zone
Pasaje populare
Pagina 201 - Can you explain this omen? Phys. A rainbow can only occur when the clouds containing or depositing the rain are opposite to the sun — and in the evening the rainbow is in the east, and in the morning in the west; and as our heavy rains, in this climate, are usually brought by the westerly...
Pagina 366 - I have never been able to conceive, that the wind in violent storms moves only in circles. On the contrary, a vortical movement, approaching to that which may be seen in all lesser vortices, aerial or aqueous, appears to be an essential element of their violent and long continued action, of their increased energy towards the centre or axis, and of the accompanying rain.
Pagina 187 - Curvature. — The rod should not be bent abruptly round sharp corners. In no case should the length of the rod between two points be more than half as long again as the straight line joining them. Where a string course or other projecting stone work will admit of it, the rod may be carried straight through, instead of round the projection.
Pagina 188 - It is essential that the lower extremity of the conductor be buried in permanently damp soil; hence proximity to rain-water pipes, and to drains, is desirable. It is a very good plan to make the conductor bifurcate close below the surface of the ground, and adopt two of the following methods for securing the escape of the lightning into the earth. A strip of copper tape may be led from the bottom of the rod to the nearest gas or water main — not merely to a lead pipe...
Pagina 65 - The height of the column in the tube above the level of the mercury in the cistern is measured by means of a graduated scale placed beside it.