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Side 3
Improvements were made on the instrument by an Italian artist about 1655 , who
used wider 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
...
Improvements were made on the instrument by an Italian artist about 1655 , who
used wider 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
...
Side 15
From this height the weight of the atmosphere is ascertained . The fundamental
principle of the barometer cannot be better illustrated than by Torricelli ' s
experiment . Take a glass tube ( fig . 1 ) , 33 inches in length , open at one end ;
fill it with ...
From this height the weight of the atmosphere is ascertained . The fundamental
principle of the barometer cannot be better illustrated than by Torricelli ' s
experiment . Take a glass tube ( fig . 1 ) , 33 inches in length , open at one end ;
fill it with ...
Side 16
The advantage Water Barometers might be supposed to possess in showing
changes of atmospheric pressure on a large scale , is more than
counterbalanced by a serious objection . The space in the tube above the water
is not a true vacuum ...
The advantage Water Barometers might be supposed to possess in showing
changes of atmospheric pressure on a large scale , is more than
counterbalanced by a serious objection . The space in the tube above the water
is not a true vacuum ...
Side 17
requiring the utmost precaution , so as to expel the air wholly without breaking
the 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 ...
requiring the utmost precaution , so as to expel the air wholly without breaking
the 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 ...
Side 18
The error is the less the more the surface of the cistern exceeds that of the
column in the 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
...
The error is the less the more the surface of the cistern exceeds that of the
column in the 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
...
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advancing America amount appear Asia Atlantic atmosphere atmospheric pressure average barometer becomes blow Britain calm causes centre changes charts climate cloud coast cold column compared consequently continued countries course daily diminished direction earth east Edition effect electricity Europe evaporation examined falls feet flow force frequently give given greater greatest heat height Hence higher hour Illustrations important inches increase indicate influence January July land least less light lines lower maximum mean mean temperature mercury Meteorological miles months nearly night northern observations occur ocean passed period Plate position pressure prevail Professor quantity radiation rain rainfall regarded regions rises round scale Scotland season seen side soil storms summer surface Table temperature thermometers tion tube upper vapour vols weather whole wind winter
Populære avsnitt
Side 184 - That rises upward always higher, And onward drags a labouring breast, And topples round the dreary west, A looming bastion fringed with fire.
Bibliografisk informasjon
| Tittel | Handy Book of Meteorology |
| Forfatter | Alexander Buchan |
| Utgave | 2 |
| Utgiver | W. Blackwood and Sons, 1868 |
| Original fra | Oxford University |
| Digitalisert | 20. sep 2006 |
| Lengde | 371 sider |
| Eksporter sitat | BiBTeX EndNote RefMan |