Doodling
A doodle is a drawing made while a person's attention is otherwise occupied. Doodles are simple drawings that can have concrete representational meaning or may just be composed of random and abstract lines or shapes, generally without ever lifting the drawing device from the paper, in which case it is usually called a scribble. Doodling and scribbling are most often associated with young children and toddlers, because their lack of hand–eye coordination and lower mental development often make it very difficult for any young child to keep their coloring attempts within the line art of the subject. Despite this, it is not uncommon to see such behavior with adults, in which case it is generally done jovially, out of boredom. Typical examples of doodling are found in school notebooks, often in the margins, drawn by students daydreaming or losing interest during class. Other common examples of doodling are produced during long telephone conversations if a pen and paper are availa ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Drawing
Drawing is a form of visual art in which an artist uses instruments to mark paper or other two-dimensional surface. Drawing instruments include graphite pencils, pen and ink, various kinds of paints, inked brushes, colored pencils, crayons, charcoal, chalk, pastels, erasers, markers, styluses, and metals (such as silverpoint). Digital drawing is the act of drawing on graphics software in a computer. Common methods of digital drawing include a stylus or finger on a touchscreen device, stylus- or finger-to- touchpad, or in some cases, a mouse. There are many digital art programs and devices. A drawing instrument releases a small amount of material onto a surface, leaving a visible mark. The most common support for drawing is paper, although other materials, such as cardboard, wood, plastic, leather, canvas, and board, have been used. Temporary drawings may be made on a blackboard or whiteboard. Drawing has been a popular and fundamental means of public expres ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Ulam Spiral
The Ulam spiral or prime spiral is a graphical depiction of the set of prime numbers, devised by mathematician Stanisław Ulam in 1963 and popularized in Martin Gardner's ''Mathematical Games'' column in ''Scientific American'' a short time later. It is constructed by writing the positive integers in a square spiral and specially marking the prime numbers. Ulam and Gardner emphasized the striking appearance in the spiral of prominent diagonal, horizontal, and vertical lines containing large numbers of primes. Both Ulam and Gardner noted that the existence of such prominent lines is not unexpected, as lines in the spiral correspond to quadratic polynomials, and certain such polynomials, such as Euler's prime-generating polynomial ''x''2 − ''x'' + 41, are believed to produce a high density of prime numbers. Nevertheless, the Ulam spiral is connected with major unsolved problems in number theory such as Landau's problems. In particular, no quadratic polynomial has eve ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Luise Kritzelzeichnung
Louise or Luise may refer to: * Louise (given name) Arts Songs * Louise (Bonnie Tyler song), "Louise" (Bonnie Tyler song), 2005 * Louise (The Human League song), "Louise" (The Human League song), 1984 * Louise (Jett Rebel song), "Louise" (Jett Rebel song), 2013 * Louise (Maurice Chevalier song), "Louise" (Maurice Chevalier song), 1929 *"Louise", by Clan of Xymox from the album ''Medusa (Clan of Xymox album), Medusa'' *"Louise", by NOFX from the album ''Pump Up the Valuum'' * "Louise", by Paul Revere & the Raiders from ''The Spirit of '67 (Paul Revere & the Raiders album), The Spirit of '67'' * "Louise", by Paul Siebel from ''Woodsmoke and Oranges'', covered by several artists * "Louise", by Taylor Hawkins and the Coattail Riders from ''Taylor Hawkins and the Coattail Riders (album), Taylor Hawkins and the Coattail Riders'' *"Louise", by The Yardbirds from the album ''Five Live Yardbirds'' Other * Louise (opera), ''Louise'' (opera), an opera by Charpentier * Louise (1939 film), ' ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Herbert Hoover
Herbert Clark Hoover (August 10, 1874 – October 20, 1964) was an American politician who served as the 31st president of the United States from 1929 to 1933 and a member of the Republican Party, holding office during the onset of the Great Depression in the United States. A self-made man who became rich as a mining engineer, Hoover led the Commission for Relief in Belgium, served as the director of the U.S. Food Administration, and served as the U.S. Secretary of Commerce. Hoover was born to a Quaker family in West Branch, Iowa, but he grew up in Oregon. He was one of the first graduates of the new Stanford University in 1895. He took a position with a London-based mining company working in Australia and China. He rapidly became a wealthy mining engineer. In 1914 at the outbreak of World War I, he organized and headed the Commission for Relief in Belgium, an international relief organization that provided food to occupied Belgium. When the U.S. entered the war in 191 ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Bill Clinton
William Jefferson Clinton ( né Blythe III; born August 19, 1946) is an American politician who served as the 42nd president of the United States from 1993 to 2001. He previously served as governor of Arkansas from 1979 to 1981 and again from 1983 to 1992, and as attorney general of Arkansas from 1977 to 1979. A member of the Democratic Party, Clinton became known as a New Democrat, as many of his policies reflected a centrist "Third Way" political philosophy. He is the husband of Hillary Clinton, who was a senator from New York from 2001 to 2009, secretary of state from 2009 to 2013 and the Democratic nominee for president in the 2016 presidential election. Clinton was born and raised in Arkansas and attended Georgetown University. He received a Rhodes Scholarship to study at University College, Oxford and later graduated from Yale Law School. He met Hillary Rodham at Yale; they married in 1975. After graduating from law school, Clinton returned to Arkansas ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Ronald Reagan
Ronald Wilson Reagan ( ; February 6, 1911June 5, 2004) was an American politician, actor, and union leader who served as the 40th president of the United States from 1981 to 1989. He also served as the 33rd governor of California from 1967 to 1975, after having a career in entertainment. Reagan was born in Tampico, Illinois. He graduated from Eureka College in 1932 and began to work as a sports announcer in Iowa. In 1937, Reagan moved to California, where he found work as a film actor. From 1947 to 1952, Reagan served as the president of the Screen Actors Guild, working to root out alleged communist influence within it. In the 1950s, he moved to a career in television and became a spokesman for General Electric. From 1959 to 1960, he again served as the guild's president. In 1964, his speech "A Time for Choosing" earned him national attention as a new conservative figure. Building a network of supporters, Reagan was elected governor of California in 1966. During his go ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Thomas Jefferson
Thomas Jefferson (April 13, 1743 – July 4, 1826) was an American statesman, diplomat, lawyer, architect, philosopher, and Founding Father who served as the third president of the United States from 1801 to 1809. He was previously the nation's second vice president under John Adams and the first United States secretary of state under George Washington. The principal author of the Declaration of Independence, Jefferson was a proponent of democracy, republicanism, and individual rights, motivating American colonists to break from the Kingdom of Great Britain and form a new nation. He produced formative documents and decisions at state, national, and international levels. During the American Revolution, Jefferson represented Virginia in the Continental Congress that adopted the Declaration of Independence. As a Virginia legislator, he drafted a state law for religious freedom. He served as the second Governor of Virginia from 1779 to 1781, during the Revolutionary War. In 1785 ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Prime Numbers
A prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime because the only ways of writing it as a product, or , involve 5 itself. However, 4 is composite because it is a product (2 × 2) in which both numbers are smaller than 4. Primes are central in number theory because of the fundamental theorem of arithmetic: every natural number greater than 1 is either a prime itself or can be factorized as a product of primes that is unique up to their order. The property of being prime is called primality. A simple but slow method of checking the primality of a given number n, called trial division, tests whether n is a multiple of any integer between 2 and \sqrt. Faster algorithms include the Miller–Rabin primality test, which is fast but has a small chance of error, and the AKS primality test, which alway ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Stanislaw Ulam
Stanisław Marcin Ulam (; 13 April 1909 – 13 May 1984) was a Polish-American scientist in the fields of mathematics and nuclear physics. He participated in the Manhattan Project, originated the Teller–Ulam design of thermonuclear weapons, discovered the concept of the cellular automaton, invented the Monte Carlo method of computation, and suggested nuclear pulse propulsion. In pure and applied mathematics, he proved some theorems and proposed several conjectures. Born into a wealthy Polish Jewish family, Ulam studied mathematics at the Lwów Polytechnic Institute, where he earned his PhD in 1933 under the supervision of Kazimierz Kuratowski and Włodzimierz Stożek. In 1935, John von Neumann, whom Ulam had met in Warsaw, invited him to come to the Institute for Advanced Study in Princeton, New Jersey, for a few months. From 1936 to 1939, he spent summers in Poland and academic years at Harvard University in Cambridge, Massachusetts, where he worked to establish im ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Rabindranath Tagore
Rabindranath Tagore (; bn, রবীন্দ্রনাথ ঠাকুর; 7 May 1861 – 7 August 1941) was a Bengali polymath who worked as a poet, writer, playwright, composer, philosopher, social reformer and painter. He reshaped Bengali literature and music as well as Indian art with Contextual Modernism in the late 19th and early 20th centuries. Author of the "profoundly sensitive, fresh and beautiful" poetry of ''Gitanjali'', he became in 1913 the first non-European and the first lyricist to win the Nobel Prize in Literature. Tagore's poetic songs were viewed as spiritual and mercurial; however, his "elegant prose and magical poetry" remain largely unknown outside Bengal. He was a fellow of the Royal Asiatic Society. Referred to as "the Bard of Bengal", Tagore was known by sobriquets: Gurudev, Kobiguru, Biswakobi. A Bengali Brahmin from Calcutta with ancestral gentry roots in Burdwan district* * * and Jessore, Tagore wrote poetry as an eight-yea ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Sylvia Plath
Sylvia Plath (; October 27, 1932 – February 11, 1963) was an American poet, novelist, and short story writer. She is credited with advancing the genre of confessional poetry and is best known for two of her published collections, '' The Colossus and Other Poems'' (1960) and '' Ariel'' (1965), as well as ''The Bell Jar'', a semi-autobiographical novel published shortly before her death in 1963. ''The Collected Poems'' was published in 1981, which included previously unpublished works. For this collection Plath was awarded a Pulitzer Prize in Poetry in 1982, making her the fourth to receive this honour posthumously. Born in Boston, Massachusetts, Plath graduated from Smith College in Massachusetts and the University of Cambridge, England, where she was a student at Newnham College. She married fellow poet Ted Hughes in 1956, and they lived together in the United States and then in England. Their relationship was tumultuous and, in her letters, Plath alleges abuse at his h ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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John Keats
John Keats (31 October 1795 – 23 February 1821) was an English poet of the second generation of Romantic poets, with Lord Byron and Percy Bysshe Shelley. His poems had been in publication for less than four years when he died of tuberculosis at the age of 25. They were indifferently received in his lifetime, but his fame grew rapidly after his death. By the end of the century, he was placed in the canon of English literature, strongly influencing many writers of the Pre-Raphaelite Brotherhood; the ''Encyclopædia Britannica'' of 1888 called one ode "one of the final masterpieces". Jorge Luis Borges named his first encounter with Keats an experience he felt all his life. Keats had a style "heavily loaded with sensualities", notably in the series of odes. Typically of the Romantics, he accentuated extreme emotion through natural imagery. Today his poems and letters remain among the most popular and analysed in English literature – in particular " Ode to a Nightingale", "Od ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |