
The Shape of Raindrops
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 Shape of Raindrops
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's Electricity
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?

The Coriolis Effect
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