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🔗 Rope (data structure)

🔗 Computing 🔗 Computing/Computer science

In computer programming, a rope, or cord, is a data structure composed of smaller strings that is used to efficiently store and manipulate a very long string. For example, a text editing program may use a rope to represent the text being edited, so that operations such as insertion, deletion, and random access can be done efficiently.

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🔗 Idiocracy

🔗 United States 🔗 Film 🔗 Film/American cinema 🔗 United States/Film - American cinema 🔗 Science Fiction 🔗 Comedy 🔗 20th Century Studios

Idiocracy is a 2006 American science fiction comedy film co-produced and directed by Mike Judge from a screenplay written by Judge and Etan Cohen based on a story written by Judge. The plot follows United States Army librarian Joe Bauers and prostitute Rita, who undergo a government hibernation experiment. Joe and Rita awake five hundred years later in a dystopian anti-intellectual society. The cast includes Luke Wilson, Maya Rudolph, Dax Shepard, Terry Crews, David Herman, Justin Long, Andrew Wilson, and Brad Jordan.

The concept of Idiocracy dates back to a concept Judge envisioned in 1996. Judge finished a script with the working title 3001 in 2001, rewriting the film a year later. Filming took place throughout 2004 at Austin Studios and other cities in Texas. Idiocracy serves as a social satire that touches on issues including anti-intellectualism, commercialism, consumerism, dysgenics, voluntary childlessness, and overpopulation. 20th Century Fox was hesitant to promote the film, refusing to grant it a wide release, and did not screen the film for critics. The decision not to market Idiocracy was seen as unexpected, following the success of Office Space (1999), and led to speculation. According to Crews, the film's satirical depiction of corporations made the film financially unviable, while Judge attributed 20th Century Fox's decision to negative test screenings; Judge stated that 20th Century Fox believed that the film would develop a cult following through its DVD release, similar to Office Space.

The film was released in the United States on September 1, 2006. Despite its lack of a major theatrical release, which resulted in a $495,000 gross at the box office, the film received positive reviews from critics and has since become a cult film.

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🔗 Ron Graham has left us

🔗 Biography 🔗 Computer science 🔗 Mathematics

Ronald Lewis Graham (born October 31, 1935) is an American mathematician credited by the American Mathematical Society as being "one of the principal architects of the rapid development worldwide of discrete mathematics in recent years". He has done important work in scheduling theory, computational geometry, Ramsey theory, and quasi-randomness.

He is the Chief Scientist at the California Institute for Telecommunications and Information Technology (also known as Cal-(IT)2) and the Irwin and Joan Jacobs Professor in Computer Science and Engineering at the University of California, San Diego (UCSD).

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🔗 Esperanto, an International Language

🔗 Languages 🔗 Constructed languages 🔗 Constructed languages/Esperanto

Esperanto () is the most widely spoken constructed international auxiliary language. It was created by Polish ophthalmologist L. L. Zamenhof in 1887, when he published a book detailing the language, The International Language whose editions in Russian, Polish, German, French and English, under the pseudonym “Doktoro Esperanto” together constitute the “original edition”, usually referred to by Esperantists as “La Unua Libro” (“The First Book”). The word esperanto translates into English as "one who hopes".

Zamenhof's goal was to create an easy and flexible language that would serve as a universal second language to foster world peace and international understanding, and to build a community of speakers, as he believed that one could not have a language without such a community.

His original title for the language was simply "the international language" (lingvo internacia), but early speakers grew fond of the name Esperanto and began to use it as the name for the language just two years after its creation; the name quickly gained prominence and has been used as an official name ever since.

In 1905, Zamenhof published Fundamento de Esperanto as a definitive guide to the language. Later that year, French Esperantists organized with his participation the first World Esperanto Congress, an ongoing annual conference, in Boulogne-sur-Mer, France. The first congress ratified the Declaration of Boulogne, which established several foundational premises for the Esperanto movement; one of its pronouncements is that Fundamento de Esperanto is the only obligatory authority over the language; another is that the Esperanto movement is exclusively a linguistic movement and that no further meaning can ever be ascribed to it. Zamenhof also proposed to the first congress that an independent body of linguistic scholars should steward the future evolution of Esperanto, foreshadowing the founding of the Akademio de Esperanto (in part modeled after the Académie française), which was established soon thereafter. Since 1905, the congress has been held in a different country every year, with the exceptions of those years during the World Wars. In 1908, a group of young Esperanto speakers led by the Swiss Hector Hodler established the Universal Esperanto Association in order to provide a central organization for the global Esperanto community.

Esperanto grew throughout the 20th century, both as a language and as a linguistic community. Despite speakers facing persecution in regimes such as Nazi Germany and the Soviet Union under Stalin, Esperanto speakers continued to establish organizations and publish periodicals tailored to specific regions and interests. In 1954, the United Nations granted official support to Esperanto as an international auxiliary language in the Montevideo Resolution. Several writers have contributed to the growing body of Esperanto literature, including William Auld, who received the first nomination for the Nobel Prize in Literature for a literary work in Esperanto in 1999, followed by two more, in 2004 and 2006. Those writing in Esperanto are also officially represented in PEN International, the worldwide writers association, through Esperanto PEN Centro.

The development of Esperanto has continued unabated into the 21st century. The advent of the Internet has had a significant impact on the language, as learning it has become increasingly accessible on platforms such as Duolingo, and as speakers have increasingly networked on platforms such as Amikumu. With approximately two million speakers, a small portion of whom are even native speakers, it is the most widely spoken constructed language in the world. Although no country has adopted Esperanto officially, Esperantujo is the name given to the collection of places where it is spoken, and the language is widely employed in world travel, correspondence, cultural exchange, conventions, literature, language instruction, television, and radio. Some people have chosen to learn Esperanto for its purported help in third language acquisition, like Latin.

While many of its advocates continue to hope for the day that Esperanto becomes officially recognized as the international auxiliary language, an increasing number have stopped focusing on this goal and instead view the Esperanto community as a "stateless diasporic linguistic minority" based on freedom of association, with a culture worthy of preservation, based solely on its own merit.

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🔗 Isochronous Curves

🔗 Mathematics

A tautochrone or isochrone curve (from Greek prefixes tauto- meaning same or iso- equal, and chrono time) is the curve for which the time taken by an object sliding without friction in uniform gravity to its lowest point is independent of its starting point on the curve. The curve is a cycloid, and the time is equal to π times the square root of the radius (of the circle which generates the cycloid) over the acceleration of gravity. The tautochrone curve is related to the brachistochrone curve, which is also a cycloid.

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🔗 Nothing-up-my-sleeve number

🔗 Cryptography 🔗 Cryptography/Computer science

In cryptography, nothing-up-my-sleeve numbers are any numbers which, by their construction, are above suspicion of hidden properties. They are used in creating cryptographic functions such as hashes and ciphers. These algorithms often need randomized constants for mixing or initialization purposes. The cryptographer may wish to pick these values in a way that demonstrates the constants were not selected for a nefarious purpose, for example, to create a backdoor to the algorithm. These fears can be allayed by using numbers created in a way that leaves little room for adjustment. An example would be the use of initial digits from the number π as the constants. Using digits of π millions of places after the decimal point would not be considered trustworthy because the algorithm designer might have selected that starting point because it created a secret weakness the designer could later exploit—though even with natural-seeming selections, enough entropy exists in the possible choices that the utility of these numbers has been questioned.

Digits in the positional representations of real numbers such as π, e, and irrational roots are believed to appear with equal frequency (see normal number). Such numbers can be viewed as the opposite extreme of Chaitin–Kolmogorov random numbers in that they appear random but have very low information entropy. Their use is motivated by early controversy over the U.S. Government's 1975 Data Encryption Standard, which came under criticism because no explanation was supplied for the constants used in its S-box (though they were later found to have been carefully selected to protect against the then-classified technique of differential cryptanalysis). Thus a need was felt for a more transparent way to generate constants used in cryptography.

"Nothing up my sleeve" is a phrase associated with magicians, who sometimes preface a magic trick by holding open their sleeves to show they have no objects hidden inside.

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🔗 Har Gobind Khorana

🔗 United States 🔗 Biography 🔗 Medicine 🔗 Biology 🔗 Biography/science and academia 🔗 India 🔗 Molecular and Cell Biology 🔗 Medicine/Medical genetics 🔗 United States/Asian Americans

Har Gobind Khorana (9 January 1922 – 9 November 2011) was an Indian-American biochemist. While on the faculty of the University of Wisconsin–Madison, he shared the 1968 Nobel Prize for Physiology or Medicine with Marshall W. Nirenberg and Robert W. Holley for research that showed the order of nucleotides in nucleic acids, which carry the genetic code of the cell and control the cell's synthesis of proteins. Khorana and Nirenberg were also awarded the Louisa Gross Horwitz Prize from Columbia University in the same year.

Born in British India, Khorana served on the faculties of three universities in North America. He became a naturalized citizen of the United States in 1966, and received the National Medal of Science in 1987.

🔗 McLibel Case

🔗 Law 🔗 Freedom of speech

McDonald's Corporation v Steel & Morris [1997] EWHC QB 366, known as "the McLibel case", was an English lawsuit for libel filed by McDonald's Corporation against environmental activists Helen Steel and David Morris (often referred to as "The McLibel Two") over a factsheet critical of the company. Each of two hearings in English courts found some of the leaflet's contested claims to be libellous and others to be true.

The original case lasted nearly ten years which, according to the BBC, made it the longest-running libel case in English history. McDonald's announced it did not plan to collect the £40,000 it was awarded by the courts. Following the decision, the European Court of Human Rights (ECHR) ruled in Steel & Morris v United Kingdom the pair had been denied a fair trial, in breach of Article 6 of the European Convention on Human Rights (right to a fair trial) and their conduct should have been protected by Article 10 of the Convention, which protects the right to freedom of expression. The court awarded a judgement of £57,000 against the UK government. McDonald's itself was not involved in, or a party to, this action, as applications to the ECHR are independent cases filed against the relevant state.

Franny Armstrong and Ken Loach made a documentary film, McLibel, about the case.

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🔗 Siwa Oasis

🔗 Egypt

The Siwa Oasis (Arabic: واحة سيوة‎, Wāḥat Sīwah, IPA: [ˈwæːħet ˈsiːwæ]; Coptic: ⲥⲓⲟⲩⲁϩ Siwah; Berber languages: Isiwan, ⵉⵙⵉⵡⴰⵏ ) is an urban oasis in Egypt between the Qattara Depression and the Great Sand Sea in the Western Desert, 50 km (30 mi) east of the Libyan border, and 560 km (348 mi) from Cairo. About 80 km (50 mi) in length and 20 km (12 mi) wide, Siwa Oasis is one of Egypt's most isolated settlements with about 33,000 people, mostly Berbers, who developed a unique and isolated desert culture and a distinct dialect and language different than all other dialects called Siwi, they are also fluent in the Egyptian dialect of Arabic which is called "Masry" meaning Egyptian.

Its fame lies primarily in its ancient role as the home to an oracle of Ammon, the ruins of which are a popular tourist attraction which gave the oasis its ancient name Oasis of Amun Ra. Historically, it was part of Ancient Egypt.

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🔗 Roar (1981 Film)

🔗 Film 🔗 Africa 🔗 Film/American cinema 🔗 Guild of Copy Editors 🔗 Animal rights

Roar is a 1981 American adventure comedy film written, produced, and directed by Noel Marshall. Roar's story follows Hank, a naturalist who lives on a nature preserve in Africa with lions, tigers, and other big cats. When his family visits him, they are instead confronted by the group of animals. The film stars Marshall as Hank and Tippi Hedren as his wife Madeleine, with Melanie Griffith, and Marshall's sons John and Jerry Marshall in supporting roles.

In 1969, while Hedren was filming Satan's Harvest in Mozambique, she and Marshall had occasion to observe a pride of lions move into a recently vacated house, driven by increased poaching. They decided to make a film centered around that theme, bringing rescued big cats into their homes in California and living with them. Filming began in 1976; it was finished after five years. The film was fully completed after 11 years in production.

Roar was not initially released in North America; in 1981, Noel and John Marshall privately released it internationally. It was also acquired by Filmways Pictures and Alpha Films. Despite performing well in Germany and Japan, Roar was a box office failure, grossing $2 million worldwide against a $17 million budget. In 2015, 34 years after the film's original release, it was released in theaters in the United States by Drafthouse Films. Roar's message of protection for African wildlife as well as its animal interactions were praised by critics, but its plot, story, inconsistent tone, dialogue, and editing were criticized.

The cast and crew members of Roar faced dangerous situations during filming; seventy people, including the film's stars, were injured as a result of multiple animal attacks. Flooding from a dam destroyed much of the set and equipment during its production, and the film's budget increased drastically. In 1983, Hedren founded the Roar Foundation and established the Shambala Preserve sanctuary, to house the animals appearing in the film. She also wrote a book, The Cats of Shambala (1985), about many of the film's events. The film has been described as "the most dangerous film ever made" and "the most expensive home movie ever made", and has gained a cult following.

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