Handy Book of MeteorologyWilliam Blackwood, 1868 - 371 sider |
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Resultat 1-5 av 32
Side 3
... 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. But the great improver of the thermometer was FAHREN- INVENTION OF ...
... 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. But the great improver of the thermometer was FAHREN- INVENTION OF ...
Side 15
... 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 to about 30 inches above the surface of the mercury in the bowl , if ...
... 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 to about 30 inches above the surface of the mercury in the bowl , if ...
Side 16
... mercury , have columns proportionally longer . Thus , if water , which is nearly 14 times lighter than mercury , be used , the barometric column is about 35 feet long . The advantage Water Barometers might be supposed to possess in ...
... mercury , have columns proportionally longer . Thus , if water , which is nearly 14 times lighter than mercury , be used , the barometric column is about 35 feet long . The advantage Water Barometers might be supposed to possess in ...
Side 17
... mercury in the cistern and the upper surface of the mercury in the tube . Now suppose the barometer falls from 30 inches to 29 inches , an inch of mercury must flow out of the tube , and pass into the cistern , thus raising the level of ...
... mercury in the cistern and the upper surface of the mercury in the tube . Now suppose the barometer falls from 30 inches to 29 inches , an inch of mercury must flow out of the tube , and pass into the cistern , thus raising the level of ...
Side 18
... mercury , into which the glass tube is plunged . P is a screw , which works through the bot- tom of the brass box , B , against the flexible bottom of the cistern , by which the level of the mercury is raised or depressed at will . F is ...
... mercury , into which the glass tube is plunged . P is a screw , which works through the bot- tom of the brass box , B , against the flexible bottom of the cistern , by which the level of the mercury is raised or depressed at will . F is ...
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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