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Side 28
Now , if we suppose the mercurial column to be 30 inches , which is nearly the
average height at the level of the sea , and its base a square inch , it will contain
30 cubic inches of mercury ; and since one cubic inch of mercury contains 34263
...
Now , if we suppose the mercurial column to be 30 inches , which is nearly the
average height at the level of the sea , and its base a square inch , it will contain
30 cubic inches of mercury ; and since one cubic inch of mercury contains 34263
...
Side 29
Hence to bring it to the average , a subtraction requires to be made at the equator
, which diminishes in amount as we proceed towards the poles , till it falls to zero
at latitude 45° , where the mean rate of decrease of gravity with the height is ...
Hence to bring it to the average , a subtraction requires to be made at the equator
, which diminishes in amount as we proceed towards the poles , till it falls to zero
at latitude 45° , where the mean rate of decrease of gravity with the height is ...
Side 33
... variations is the daily variation , the regularity of which in the tropics is so
remarkable that , according to Humboldt , the hour may be ascertained from the
height of the barometer without an error of more than 15 or 17 minutes on the
average .
... variations is the daily variation , the regularity of which in the tropics is so
remarkable that , according to Humboldt , the hour may be ascertained from the
height of the barometer without an error of more than 15 or 17 minutes on the
average .
Side 38
The legitimate use of these corrections is in their application to long averages
when it is necessary to compare together the atmospheric pressure in different
regions which differ in the hours of observation , or in the amounts of the
variations at ...
The legitimate use of these corrections is in their application to long averages
when it is necessary to compare together the atmospheric pressure in different
regions which differ in the hours of observation , or in the amounts of the
variations at ...
Side 43
... average these — to correct for daily range - and reduce to sea - level , - is no
doubt one of the chief reasons why isobarometric charts have not hitherto been
prepared . ATMOSPHERIC PRESSURE, ITS DISTRIBUTION OVER THE GLOBE.
... average these — to correct for daily range - and reduce to sea - level , - is no
doubt one of the chief reasons why isobarometric charts have not hitherto been
prepared . ATMOSPHERIC PRESSURE, ITS DISTRIBUTION OVER THE GLOBE.
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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 |