Elementary MeteorologyK. Paul, Trench & Company, 1898 - 410 pagini |
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Pagina 71
... blows of passers - by . It must be hung in a perfectly vertical position and kept vertical by clamping screws , It should be at such a height that the top of the column can be easily read off by a person standing by . It should be in a ...
... blows of passers - by . It must be hung in a perfectly vertical position and kept vertical by clamping screws , It should be at such a height that the top of the column can be easily read off by a person standing by . It should be in a ...
Pagina 122
... blows over it , fog is the result , which may be carried some little way inland , but cannot be produced over the ... blow- ing from the ice surface on the south - east side along this strait , the only channel of connection , generates ...
... blows over it , fog is the result , which may be carried some little way inland , but cannot be produced over the ... blow- ing from the ice surface on the south - east side along this strait , the only channel of connection , generates ...
Pagina 133
... blow over , and its rim must be perfectly level . The height above the ground is a matter of no less importance in rain measurements . It has been gene- rally decided in this country to adopt one foot above the ground for the height of ...
... blow over , and its rim must be perfectly level . The height above the ground is a matter of no less importance in rain measurements . It has been gene- rally decided in this country to adopt one foot above the ground for the height of ...
Pagina 150
... blows against it , will be displaced from the vertical position , and that we can form some judgment as to the force of the wind from the angle at which the plate rests , but the instrument is somewhat imperfect . FIG . 26 . Another ...
... blows against it , will be displaced from the vertical position , and that we can form some judgment as to the force of the wind from the angle at which the plate rests , but the instrument is somewhat imperfect . FIG . 26 . Another ...
Pagina 245
... blow with great persistency only over the oceans , as the influence of the great cortinents , with their extensive changes of temperature , from summer to winter , disturb the regu- larity of the motion of the lower currents . In the ...
... blow with great persistency only over the oceans , as the influence of the great cortinents , with their extensive changes of temperature , from summer to winter , disturb the regu- larity of the motion of the lower currents . In the ...
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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.