An eagle doodad.

Eagle doodad

An eagle doodad.

"Invert the second vessel over the first, mouth to mouth, so that the contents of the two vessels shall be separated only by the paper. Each vessel is filled with an invisible gas. Remove the paper, and notice that the invisible gases quickly-diffuse into each other and form a dense cloud." -Avery 1895

Mixing Gases in Inverted Containers

"Invert the second vessel over the first, mouth to mouth, so that the contents of the two vessels shall…

Capital letter I with sun and clouds.

I, Letter

Capital letter I with sun and clouds.

Cirrus cloud is a type of cloud composed of ice crystals and characterized by thin, wisplike strands, often accompanied by tufts. A Cumulus cloud is a cloud belonging to a class characterized by puffs, mounds or towers, with flat bases and tops that often resemble cauliflower.

Primary Forms of Clouds: Cirrus and Cumulus

Cirrus cloud is a type of cloud composed of ice crystals and characterized by thin, wisplike strands,…

A Nimbus, or Storm Cloud, is any cloud from which rain falls. The Stratus, or Layer Clouds, form in long, horizontal sheets or bands. These clouds are most common in the early morning or evening, when the ascending currents are weak.

Primary Forms of Clouds: Nimbus and Stratus

A Nimbus, or Storm Cloud, is any cloud from which rain falls. The Stratus, or Layer Clouds, form in…

The wind is supposed to rotate as in a cyclone, only the axis of the whirl is horizontal instead of vertical. Two horizontal layers of cloud exist-the upper layer of snow, the lower, or rain. The snowflakes, which form the nuclei of the hailstones, are caught in the whirl, are dipped in rapid succession into the two clouds, thus receiving alternate coatings of ice and snow, until at last they are hurried to the ground.

Rotary Theory of Hail

The wind is supposed to rotate as in a cyclone, only the axis of the whirl is horizontal instead of…

Cirro-Cumulus is formed from cirrus or cirrostratus clouds when they are warmed gently from below. Cirro-Stratus clouds appear as whitish and usually somewhat fibrous veils, often covering the whole sky and sometimes so thin as to be hardly discernible. The Cumulo-Stratus is the form produced by the heaping together of a mountain-like mass of cumulus clouds.

Secondary Forms of Clouds

Cirro-Cumulus is formed from cirrus or cirrostratus clouds when they are warmed gently from below. Cirro-Stratus…

Concentric layers, similar to those of an onion, will be noticed, arranged around a central nucleus, sometimes of ice and sometimes of snow, through generally the latter. The stones are more or less oblately spheroidal in shape. Their general weight varies from a few grains to several ounces, but they have been known to way several pounds.

Structure of a Hailstone

Concentric layers, similar to those of an onion, will be noticed, arranged around a central nucleus,…