The three circuits: a study of the primary forces . ular, and elliptical. Three primary kinds of life—molecular, vegetable, and animal. Two currents of force can no more occupy the same body of matter at the same time, than can two bodies of matter occupy the same place at the same time, and yet in about one-half of . the snow crystals we see the force- ,...--• I *-••..,;.. lines crossing each other in the centre j **--X-* °f *ne crystals at angles of sixty de- •j,-- \;-;- grees> Fig. 31. This apparent con- \U tradiction of our conclusions arises from the fact that in the crystals we simply
The three circuits: a study of the primary forces . ular, and elliptical. Three primary kinds of life—molecular, vegetable, and animal. Two currents of force can no more occupy the same body of matter at the same time, than can two bodies of matter occupy the same place at the same time, and yet in about one-half of . the snow crystals we see the force- ,...--• I *-••..,;.. lines crossing each other in the centre j **--X-* °f *ne crystals at angles of sixty de- •j,-- \;-;- grees> Fig. 31. This apparent con- \U tradiction of our conclusions arises from the fact that in the crystals we simply see the impress of the forces spread upon a plane, which is not at all the form in which they occupied the globules of water; nor the form in which they occupy the earth.* * When the earth was a molecule, its true magneticpoles (like those of the snow crystals) were located thirtydegrees from its equator. That they are now near the six-tieth degrees of north and south latitude is due to the in-equality in the size of the earth and SNOW CRYSTALS. 183 If we take one of these crystals and cause it torotate on its centre, we shall have a polar projectionof magnetic force, Fig. 32; the same view may alsobe obtained by looking at the end of a bar-magnetwith iron filings attached (see ). The centre of the crystal is ofcourse at rest. About one-half of the crystalsexhibit an open centre expandedinto hexagons, Fig. 33. If weassume two opposite points ot thiscrystal to be its poles, and then conceive the wholefigure rotating on the polar axis we have selected,the figure so produced will be a sphere, Fig. 34, andwe realize that the centre of it is at rest, or in equi-librium, and that all the matter com- _ Fig. 33, posing it is being thrown towards its -*-; surface. This ideal figure may also 4/ X. x&be obtained by conceiving a bar- • j i Imagnet with iron filings surrounding ;}£[ **r .l-T-it, the whole in absolute equilibrium >!< (see Fig. 5). This peculia
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Keywords: ., bookcentury1800, bookdecade1890, bookidthreecircuit, bookyear1892
