Smithsonian Miscellaneous Collections
Format: Paperback
ISBN13: 9781153422567
Paperback|9781153422567
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Overview
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1880 edition. Excerpt: ...of c for the argument, or the correction for the change of gravity in latitude, which is negative from 0 to 45, positive from 45 to 90. Table III. furnishes the values of c' for the argument h in toises, or the correction for the decrease of gravity on the vertical. Both in Tables II. and III. the values of c and d are given in units of the fifth decimal place. The difference of elevation of the two stations is given by the formula, 1. u = log b--log b 2. log h = log u--A ] c-(-c', in which A is the arithmetical complement of a, and the corrections c and c' receive contrary signs. For the sake of convenience, the values of A have been placed in Table I., and in Table III. the correction for A is found in another coluipn, with the more convenient argument v = log u--A. If the heights of the barometers have not been reduced to the freezing point, then, B and B' being the unreduced heights of the barometers, and T and T' the temperature of the attached thermometer in degrees of Reaumur, B B'... m and making-= /3, 4440 M = log b--log b' = (log B--/3T)--(log B'--j8 T). Instead of /3 = 0.000098, we can write with sufficient accuracy 0.00010. Use Of The Tables. These tables can be used in any latitude, and for any barometrical scale; but the indications of the barometers must be reduced to the freezing point; and the temperatures of the air must be given in degrees of Reaumur. The tables suppose the use of logarithms with 5 decimals, such as those of Lalande, and give the results in toises. I. For Reducing Barometrical Observations to another Level. Given h in toises, t, t', (j, and b or b'. To find b or b'. In Table I. with the argument t-f-1', take a, In Table II. with the argument f, take c, In Table III. with the argument h, take c', ...
| ISBN-13 | 9781153422567 |
|---|---|
| ISBN-10 | 1153422565 |
| Weight | 2.01 Pounds |
| Dimensions | 9.00 x 6.00 x 1.40 In |
| List Price | $19.99 |
| Format | Paperback |
|---|---|
| Pages | 630 pages |
| Publisher | |
| Published On | 2010-01-01 |
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