Handy Book of MeteorologyW. Blackwood and Sons, 1868 - 371 sider |
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Side 22
... hence it cannot be used where accuracy is required . It is , however , useful in indicating roughly the more marked atmospheric fluctuations which are generally accompanied by changes of the weather . 41. It may be proper to refer here ...
... hence it cannot be used where accuracy is required . It is , however , useful in indicating roughly the more marked atmospheric fluctuations which are generally accompanied by changes of the weather . 41. It may be proper to refer here ...
Side 24
... Hence when the pressure of the atmosphere is increased , the air is compressed , and the fluid rises ; but when it is diminished , the air expands and the fluid falls . To obviate error from the in- creased pressure of the air when its ...
... Hence when the pressure of the atmosphere is increased , the air is compressed , and the fluid rises ; but when it is diminished , the air expands and the fluid falls . To obviate error from the in- creased pressure of the air when its ...
Side 25
... . 10 , that ten divisions of the vernier are exactly equal to eleven divisions of the scale ; that Fig . 10 . Fig . 9 . 0 30 2 4 2 6 8 6 29 29 10 8 10 Fig . 11 . is , to eleven tenths of an inch . Hence OF THE ATMOSPHERE . 25 25.
... . 10 , that ten divisions of the vernier are exactly equal to eleven divisions of the scale ; that Fig . 10 . Fig . 9 . 0 30 2 4 2 6 8 6 29 29 10 8 10 Fig . 11 . is , to eleven tenths of an inch . Hence OF THE ATMOSPHERE . 25 25.
Side 26
Alexander Buchan. is , to eleven tenths of an inch . Hence each division of the vernier is equal to a tenth of an inch , together with the tenth of a tenth , or a hundredth , or to ten hundredths and one hundredth - that is , to eleven ...
Alexander Buchan. is , to eleven tenths of an inch . Hence each division of the vernier is equal to a tenth of an inch , together with the tenth of a tenth , or a hundredth , or to ten hundredths and one hundredth - that is , to eleven ...
Side 27
... 5 as 20 ° .0 is below it , we find it to be -.023 ; and hence the correction for 20 ° .0 is +.023 . 49. The column of mercury in the tube is supported above the level of the mercury in the cistern by the OF THE ATMOSPHERE . 27.
... 5 as 20 ° .0 is below it , we find it to be -.023 ; and hence the correction for 20 ° .0 is +.023 . 49. The column of mercury in the tube is supported above the level of the mercury in the cistern by the OF THE ATMOSPHERE . 27.
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