...treated in Articles 24 and 34, are slowly changing. In 1843 the dip at Greenwich was about 69° 1' ; it has diminished, with a rate continually accelerating, till in 1868 it was 67° 56'. Adopting as elements of calculation that in 1848 the dip and horizontal force were 68° 47' and 376,...

...reducible to any simple expression. 501. Changes of Declination and Dip.—Declination and dip vary greatly not only from place to place, but also from time to time. Thus at the date of the earliest recorded observations at Paris, 1580, the declination was about 11°...

...lat. 0°, long. 259° E., where the value is -3733. In 1843 the dip at Greenwich was about 69° 1' ; it has diminished, with a rate continually accelerating, till in 1868 it was 67° 56'. The total intensity, as computed from the dip and horizontal intensity, was -4791 in the year 1848,...

...lat. o°, long. 259° E., where the value is -3733. In 1843 the dip at Greenwich was about 69° 1 '; it has diminished, with a rate continually accelerating, till in 1868 it was 67° 56'. The total intensity, as computed from the dip and horizontal intensity, was '4791 in the year 1848,...

...decreases with the latitude to the equator, where it is approximately zero. Dip, like the variation, varies greatly, not only from place to place, but also from...diminished, with a rate continually accelerating, till in 1 868 it was 67° 56'. It is also subject to slight annual and diurnal variations, being about 15'...

...reducible to any simple expression. 501. Changes of Declination and Dip. — Declination and dip vary greatly not only from place to place, but also from time to time. Thus at the date of the earliest recorded observations at Paris, 1580, the declination was about 11°...

...tangent of the angle through which the needle is deflected. Since the value of the earth's field varies not only from place to place, but also from time to time at the same place, it is usual to divide the expression for the current in terms of the dimensions,...

...of the same country, and his illustration taken from the use of linen shows that such standards vary not only from place to place but also from time to time; for linen shirts are now worn only by some of the richer members of society. As he explained, potatoes...

...beneath the hilltops. As implied in the preceding paragraph, the position of the water table varies not only from place to place, but also from time to time at any given place. It is higher after heavy rains, and lower during periods of drought. How ground...

...life is relative, that it depends on its harmony and disharmony with other factors. All this varies not only from place to place, but also from time to time. Still, you may see the influence of the same factor at different periods and sometimes the coincidence...