They are not handsomely tapered but often resemble a small hamburger bun. This unpoetical form, frozen by high-speed photography, is analyzed to reveal the forces that mold it
The earth is charged with respect to the atmosphere, and the atmosphere is sufficiently ionized to be a conductor. How, then, is the earth capable of maintaining its charge?
Everything that moves over the surface of the earth-water, air, animals, machines and projectiles-sidles to the right in the Northern Hemisphere and to the left in the Southern