Elementary MeteorologyK. Paul, Trench & Company, 1898 - 410 pagini |
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Pagina 12
... close to the earth than above that level . As is well known , at such heights . as about seven miles , believed to have been attained by Messrs . Coxwell and Glaisher in their memorable bal- loon ascent from Wolverhampton , September 5 ...
... close to the earth than above that level . As is well known , at such heights . as about seven miles , believed to have been attained by Messrs . Coxwell and Glaisher in their memorable bal- loon ascent from Wolverhampton , September 5 ...
Pagina 22
... close for ordinary purposes . To return then to Fahrenheit's graduation ; he divided the distance between the freezing and boiling points into 180 parts or degrees , corresponding to the number of degrees in a semicircle , and he ...
... close for ordinary purposes . To return then to Fahrenheit's graduation ; he divided the distance between the freezing and boiling points into 180 parts or degrees , corresponding to the number of degrees in a semicircle , and he ...
Pagina 27
... close to the bulb is reduced in section in such a way that while the expan- sion of the mercury is sufficient to force the thread of liquid past the obstruction , the cohesion of the metal is insufficient to draw it back again when the ...
... close to the bulb is reduced in section in such a way that while the expan- sion of the mercury is sufficient to force the thread of liquid past the obstruction , the cohesion of the metal is insufficient to draw it back again when the ...
Pagina 34
... in . This and all other screens should be painted white . The objections to Stevenson's screen are that it is rather small , and that the louvres are too close to- gether to allow of a free access of the external. 34 ELEMENTARY METEOROLOGY ...
... in . This and all other screens should be painted white . The objections to Stevenson's screen are that it is rather small , and that the louvres are too close to- gether to allow of a free access of the external. 34 ELEMENTARY METEOROLOGY ...
Pagina 36
... close approxi- mation to the shade temperature at all times , and it is a remarkable fact that the reading is scarcely affected by the accident of its being taken in sunshine or in shade . It is obvious that such a method of observing ...
... close approxi- mation to the shade temperature at all times , and it is a remarkable fact that the reading is scarcely affected by the accident of its being taken in sunshine or in shade . It is obvious that such a method of observing ...
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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.