Handy Book of MeteorologyWilliam Blackwood, 1868 - 371 sider |
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Side 19
... tube , the lower part of which is seen plunged into the mercury in the cistern at T , is enclosed in a brass tube , which extends continuously from the brass box , B , to the top of the instrument . This brass tube is made with two ...
... tube , the lower part of which is seen plunged into the mercury in the cistern at T , is enclosed in a brass tube , which extends continuously from the brass box , B , to the top of the instrument . This brass tube is made with two ...
Side 20
... tube is very much narrowed through the greater part of its length , it forms what is commonly called the Marine Barometer . It is also frequently made with an air chamber , at A , fig . 2 , by which any air that may accidentally find ...
... tube is very much narrowed through the greater part of its length , it forms what is commonly called the Marine Barometer . It is also frequently made with an air chamber , at A , fig . 2 , by which any air that may accidentally find ...
Side 21
... tube by turning the screw , P , before unfastening the float , F ; for if this be not attended to , the pressure ... tube bent in the form of a siphon , and of the same diameter throughout . A graduated scale passes along the whole ...
... tube by turning the screw , P , before unfastening the float , F ; for if this be not attended to , the pressure ... tube bent in the form of a siphon , and of the same diameter throughout . A graduated scale passes along the whole ...
Side 22
... tube , impedes the smooth working of the instrument . In narrow tubes this becomes a very serious objection . 40. The common Wheel Barometer , the popular form of the weather - glass , is a modification of the siphon barometer . A small ...
... tube , impedes the smooth working of the instrument . In narrow tubes this becomes a very serious objection . 40. The common Wheel Barometer , the popular form of the weather - glass , is a modification of the siphon barometer . A small ...
Side 23
... tube , which is of large diameter , and longer than the ordinary sort , so as to admit of a greater length of range . B is a cylindrical cistern , having attached to the bottom of it a long hollow tube or stalk , c , herme- tically ...
... tube , which is of large diameter , and longer than the ordinary sort , so as to admit of a greater length of range . B is a cylindrical cistern , having attached to the bottom of it a long hollow tube or stalk , c , herme- tically ...
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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