Handy Book of MeteorologyWilliam Blackwood, 1868 - 371 sider |
Inni boken
Resultat 1-5 av 28
Side 3
... tubes , terminating in bulbs , and filled with alcohol ; and by Römer , who used mercury , and , starting from the melting - point of ice , divided the tube into degrees , each in- tended to represent the 100,000th part of the bulb . 8 ...
... tubes , terminating in bulbs , and filled with alcohol ; and by Römer , who used mercury , and , starting from the melting - point of ice , divided the tube into degrees , each in- tended to represent the 100,000th part of the bulb . 8 ...
Side 15
... tube ( fig . 1 ) , 33 inches in length , open at one end ; fill it with mercury , and , closing the open end with the finger , invert it , and plunge the open end into a bowl ( c ) also containing mercury . The column will fall in the tube ...
... tube ( fig . 1 ) , 33 inches in length , open at one end ; fill it with mercury , and , closing the open end with the finger , invert it , and plunge the open end into a bowl ( c ) also containing mercury . The column will fall in the tube ...
Side 16
... tube above the water is not a true vacuum , but is filled with aqueous vapour , which presses on the water with a force varying with the temperature . If the temperature be 32 ° the column is de- pressed half an inch , and if it be ...
... tube above the water is not a true vacuum , but is filled with aqueous vapour , which presses on the water with a force varying with the temperature . If the temperature be 32 ° the column is de- pressed half an inch , and if it be ...
Side 17
... tube . As it is absolutely essential that a barometer be quite free from air and vapour , it should be tested some time after it has been boiled , and before it is used . This is done by gently inclining it , so that the mer- cury may ...
... tube . As it is absolutely essential that a barometer be quite free from air and vapour , it should be tested some time after it has been boiled , and before it is used . This is done by gently inclining it , so that the mer- cury may ...
Side 18
... tube , because the fall or rise in the tube is spread over a larger surface . Hence it is desirable that the cisterns of barometers be made as large as possible . 35. The barometer in which the error of level is entirely got rid of is ...
... tube , because the fall or rise in the tube is spread over a larger surface . Hence it is desirable that the cisterns of barometers be made as large as possible . 35. The barometer in which the error of level is entirely got rid of is ...
Andre utgaver - Vis alle
Vanlige uttrykk og setninger
America antisolar point ascending Asia Atlantic atmospheric pressure average barometer blow Britain calm causes centre charts cirrus cirrus cloud cistern climate cloud coast cold colder column condensed continent Crown 8vo daily dew-point diminished direction dry air earth earth's surface east Edition electricity equator equatorial current Europe evaporation falls Fcap feet flow globe greater heat height hemisphere Hence high pressure higher hour humidity hygrometer Iceland inch of mercury inches increase Indian Ocean isobarometric lines January John Herschel July latitudes low pressure lower Mauritius maximum mean temperature mercury Meteorological meter miles moisture monsoon months northern northern hemisphere Norway observations occur ocean Orkney perature Plate polar current polarisation prevail Professor rain rainfall regions rises round Scotland season snow soil St Petersburg storm summer temperature terrestrial radiation thermometers tion tropics tube upper currents vapour vols weather wind winter Yakutsk