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Examples of computer clip art, from Openclipart. Clip art (also clipart, clip-art) is a type of graphic art. Pieces are pre-made images used to illustrate any medium. Today, clip art is used extensively and comes in many forms, both electronic and printed. However, most clip art today is created, distributed, and used in a digital form.
File: Pablo Picasso, 1905-06, Les deux frères (The two brothers), oil on canvas, 141.4 x 97.1 cm, Kunstmuseum Basel.jpg
The Koch snowflake (also known as the Koch curve, Koch star, or Koch island [1] [2]) is a fractal curve and one of the earliest fractals to have been described. It is based on the Koch curve, which appeared in a 1904 paper titled "On a Continuous Curve Without Tangents, Constructible from Elementary Geometry" [3] by the Swedish mathematician Helge von Koch.
Wilson Bentley micrograph showing two classes of snowflake, plate and column. Missing is an example of a needle. The shape of a snowflake is determined primarily by the temperature and humidity at which it is formed. [8] Freezing air down to −3 °C (27 °F) promotes planar crystals (thin and flat).
There were twenty blocks in the original townsite each containing 4 lots. The townsite was named Snowflake in honor of Erastus Snow and William Flake. [3] [5] The residential areas of the town grew as settlers moved into Snowflake. The majority of the homes in the Snowflake Townsite Historic District were built of logs or adobe during this period.
The snowflakes were too complex to record before they melted, so he attached a bellows camera to a compound microscope and, after much experimentation, photographed his first snowflake on January 15, 1885. [5] He captured more than 5,000 images of crystals. Each crystal was caught on a blackboard and transferred rapidly to a microscope slide.
Diagrams of real snowflakes were traced by the Ink and Paint Department, who used a material a little heavier than regular cels, and painted them in translucent white. They were then cut out and placed on revolving spools attached to small steel rails. The mechanics was hidden under black velvet as the snowflakes were moved one frame at a time.
The hexagonal snowflake, a crystalline formation of ice, has intrigued people throughout history.This is a chronology of interest and research into snowflakes. Artists, philosophers, and scientists have wondered at their shape, recorded them by hand or in photographs, and attempted to recreate hexagonal snowflakes.