serigraph

Definition: (noun) A print made using a stencil process in which an image or design is superimposed on a very fine mesh screen and printing ink is squeegeed onto the printing surface through the area of the screen that is not covered by the stencil.
Synonyms: silk screen print, silkscreen.
Usage: Nicole examined the dragonfly serigraph on the t-shirt to make sure the image had transferred clearly.
Discuss

Source: The Free Dictionary

Supernova 1604 First Observed (1604)

A supernova is a rare celestial phenomenon involving the explosion of a star, resulting in an extremely bright, short-lived object that emits vast amounts of energy. The last supernova to be observed in the Milky Way was seen in 1604 by Johannes Kepler and was used by Galileo, at his trial, as evidence against the presupposition that the universe never changes. Visible to the naked eye, it was brighter at its peak than any other star in the night sky. How far from Earth was this supernova? Discuss

Source: The Free Dictionary

Leif Erikson Day

Some historians believe that the viking explorer Leif Ericson landed in North America 488 years before Columbus sailed into the New World. Members of the Leif Erikson Association chose October 9 to commemorate this event because the first Norwegian emigrants landed in America on October 9, 1825. In 1964, President Lyndon B. Johnson proclaimed this as Leif Erikson Day. States with large Norwegian-American populations often hold observances on this day, as do members of the Sons of Norway, the Leif Erikson Society, and other Norwegian-American organizations. Discuss

Source: The Free Dictionary

Guillermo del Toro (1964)

Del Toro is an Academy Award-nominated Mexican filmmaker whose films often explore the darker elements of fantasy and reflect his fascination with “insects, clockwork, monsters, dark places, and unborn things.” His most acclaimed films to date, Pan’s Labyrinth and The Devil’s Backbone, both feature children living under authoritarian rule while facing frightening supernatural entities and have been compared with what film, considered to be the finest Spanish film of the 1970s? Discuss

Source: The Free Dictionary

Rock, Paper, Scissors

Rock, Paper, Scissors (RPS) is a hand game, often played by children, that is used as a selection method similar to drawing straws. Though seemingly random, an experienced and attentive player can sometimes recognize the behavior patterns of other players and use this knowledge to his advantage. The game involves 3 hand gestures, each representing rock, paper, or scissors. Each gesture beats one of the other two. In 2006, US Federal Judge Gregory Presnell used RPS to settle a court dispute; how? Discuss

Source: The Free Dictionary

The Great Chicago Fire (1871)

The Great Chicago Fire was a conflagration that burned for more than two days and destroyed about four square miles of the city. It killed hundreds of people, left 90,000 homeless, and destroyed some $200 million worth of property. Originally composed of mostly wooden structures, the city was rebuilt with stone and steel and became a center of industry. According to early accounts of the disaster, the blaze began in a barn owned by Patrick and Catherine O’Leary. What supposedly caused the fire? Discuss

Source: The Free Dictionary

Peru Battle of Angamos

The War of the Pacific (1879-1883) began when Chile and Bolivia fought for control of a portion of the Atacama Desert. On October 8, 1879, the Chilean Navy captured Peru’s ironclad warship, the Huáscar, and killed the captain, Admiral Miguel Grau. Chile gained control over the seas and was thus able to invade Peru and Bolivia. October 8 is a national holiday in Peru to remember the lost Battle of Angamos. On this day, military and civil parades are held, and celebrations are held to honor the heroic deeds of Admiral Miguel Grau and his role in the battle. Discuss

Source: The Free Dictionary

Henri Louis Le Châtelier (1850)

Le Châtelier was a French chemist best known for devising Le Châtelier’s principle, which makes it possible to predict the effect that a change in conditions—such as temperature, pressure, or concentration of components—will have on a chemical reaction. The principle states that a system in equilibrium, when subjected to a perturbation, will respond in a way that tends to minimize its effect and restore equilibrium. In 1928, Le Châtelier published a book on what system of scientific management? Discuss

Source: The Free Dictionary

The Sea Otter

Sea otters are carnivorous, aquatic mammals. Found in and around the kelp beds of the N Pacific, the sea otter is the only exclusively marine species in the otter family. Sea Otters present a rare example of mammalian tool use. They use rocks as tools to pry open food and as weapons to blind their enemies. Hunted to near extinction for their luxuriously dense fur, the otters are now protected under what international treaty? Discuss

Source: The Free Dictionary