The Colorado coat of arms in 1876, as illustrated by Henry Mitchell in State Arms of the Union. The modern Seal of Colorado, an adaptation of the Territorial Seal adopted by the First Territorial Assembly in 1861, and similar to the coat of arms, was adopted a year after this illustration was published. The coat of arms includes the following devices: the Eye of Providence or 'All Seeing Eye' within a triangle, with golden rays radiating; the Roman fasces, a bundle of birch or elm rods with a battle ax bound together with a ribbon; the heraldic shield bearing a red sky behind a mountain and the pick and sledge hammer, crossed on a golden ground. Below the shield, on a scroll, is the motto, "Nil Sine Numine", meaning "Nothing without providence".Illustration: Henry Mitchell; restoration: Andrew Shiva
Chocolate brownies are square baked desserts with a texture between that of cake and soft cookies. Developed in the United States at the end of the 19th century, the recipe was popularized during the first half of the 20th century. Although brownies can be made plain, commonly nuts (usually walnuts) and chocolate chips are added to make them more substantial. They are typically eaten by hand, often accompanied by milk, served warm with ice cream (à la mode), topped with whipped cream, or sprinkled with powdered sugar and fudge. They are common lunchbox treats, and also popular in restaurants and coffeehouses.Photograph: Ɱ
A portrait of a ring-billed gull (Larus delawarensis) in Windsor, Ontario. The popular name of this medium-sized gull comes from the black ring around its bill. This species is found near lakes, rivers, or the coast in Canada and the northern United States. It nests in colonies on the ground, often on islands.Photograph: Chris Woodrich
Historic U.S. Route 66 outside Amboy, California. Established on November 11, 1926, it was one of the original highways within the U.S. Highway System. It served as a major path for those who migrated west, especially during the Dust Bowl of the 1930s, and was a part of 1960s popular culture.Photograph: Dietmar Rabich
A work of embroidery from the Caucasus region, dating back to the 18th century. Embroidery refers to the handicraft of decorating fabric or other materials using a needle to apply thread or yarn, and sometimes other materials such as pearls, beads, quills, and sequins. Here, the embroidery consists of a series of designs formed within and around nested polygons, depicting a stylized assortment of plants and animals.Textile: Unknown
The Biham–Middleton–Levine traffic model for a 144 x 89 lattice, with a traffic density of 28%. The model has self-organized to a free-flowing phase. The red cars and blue cars take turns to move; the red ones only move rightwards, and the blue ones move downwards. Every time, all the cars of the same colour try to move one step if there is no car in front. This video has been sped up such that only one in four frames is shown.
A chain gang of young African-American convicts in the Southern United States, circa 1903. A common practice historically in the American South, prisoners would be chained together to perform menial or physically challenging work as a form of punishment. Chain gangs allowed prisoners to work in public outside of penitentiaries, satisfying the need for labor on government projects, such as railroads and roads. During the decline of convict leasing, from which states generated significant revenue, chain gangs were employed to offset the costs for the housing of inmates. The practice had ceased by the 1950s, though it had a small resurgence in the 1990s in some states.Photograph: Detroit Publishing Company; restoration: Scewing