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πŸ”— Hugin: open source panoramic photo stitching and HDR merging

πŸ”— Computing πŸ”— Computing/Software

Hugin () is a cross-platform open source panorama photo stitching and HDR merging program developed by Pablo d'Angelo and others. It is a GUI front-end for Helmut Dersch's Panorama Tools and Andrew Mihal's Enblend and Enfuse. Stitching is accomplished by using several overlapping photos taken from the same location, and using control points to align and transform the photos so that they can be blended together to form a larger image. Hugin allows for the easy (optionally automatic) creation of control points between two images, optimization of the image transforms along with a preview window so the user can see whether the panorama is acceptable. Once the preview is correct, the panorama can be fully stitched, transformed and saved in a standard image format.

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πŸ”— Wow signal

πŸ”— History πŸ”— Physics πŸ”— Telecommunications πŸ”— Skepticism πŸ”— Astronomy πŸ”— History of Science πŸ”— Physics/History πŸ”— Paranormal

The Wow! signal was a strong narrowband radio signal received on August 15, 1977, by Ohio State University's Big Ear radio telescope in the United States, then used to support the search for extraterrestrial intelligence. The signal appeared to come from the direction of the constellation Sagittarius and bore the expected hallmarks of extraterrestrial origin.

Astronomer Jerry R. Ehman discovered the anomaly a few days later while reviewing the recorded data. He was so impressed by the result that he circled the reading on the computer printout, "6EQUJ5", and wrote the comment "Wow!" on its side, leading to the event's widely used name.

The entire signal sequence lasted for the full 72-second window during which Big Ear was able to observe it, but has not been detected since, despite several subsequent attempts by Ehman and others. Many hypotheses have been advanced on the origin of the emission, including natural and human-made sources, but none of them adequately explains the signal.

Although the Wow! signal had no detectable modulationβ€”a technique used to transmit information over radio wavesβ€”it remains the strongest candidate for an alien radio transmission ever detected.

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πŸ”— The Iron Law of Wages

πŸ”— Economics

The iron law of wages is a proposed law of economics that asserts that real wages always tend, in the long run, toward the minimum wage necessary to sustain the life of the worker. The theory was first named by Ferdinand Lassalle in the mid-nineteenth century. Karl Marx and Friedrich Engels attribute the doctrine to Lassalle (notably in Marx's 1875 Critique of the Gotha Program), the idea to Thomas Malthus's An Essay on the Principle of Population, and the terminology to Goethe's "great, eternal iron laws" in Das GΓΆttliche.

It was coined in reference to the views of classical economists such as David Ricardo's Law of rent, and the competing population theory of Thomas Malthus. It held that the market price of labour would always, or almost always, tend toward the minimum required for the subsistence of the labourers, reducing as the working population increased and vice versa. Ricardo believed that happened only under particular conditions.

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πŸ”— Erik Naggum

πŸ”— Biography πŸ”— Norway

Erik Naggum (June 13, 1965 – June 17, 2009) was a Norwegian computer programmer recognized for his work in the fields of SGML, Emacs and Lisp. Since the early 1990s he was also a provocative participant on various Usenet discussion groups.

Naggum made significant contributions to RFC 1123, which defines and discusses the requirements for Internet host software, and RFC 2049, which defines electronic information transfer of various binary formats through e-mail.

In a 1999 newspaper article in Dagbladet, he was interviewed about his aggressive, confrontational participation in Usenet discussion groups. Erik later stated his motto to be: "Some people are little more than herd animals, flocking together whenever the world becomes uncomfortable … I am not one of those people. If I had a motto, it would probably be Herd thither, me hither."

His death on June 17, 2009 (aged 44), was caused by a massive bleeding ulcer, related to ulcerative colitis, which he was diagnosed with about 15 years before his death.

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πŸ”— Algocracy

πŸ”— Science Policy

Government by algorithm (also known as algorithmic regulation, regulation by algorithms, algorithmic governance, algocratic governance, algorithmic legal order or algocracy) is an alternative form of government or social ordering, where the usage of computer algorithms, especially of artificial intelligence and blockchain, is applied to regulations, law enforcement, and generally any aspect of everyday life such as transportation or land registration. The term 'government by algorithm' appeared in academic literature as an alternative for 'algorithmic governance' in 2013. A related term, algorithmic regulation is defined as setting the standard, monitoring and modification of behaviour by means of computational algorithms β€” automation of judiciary is in its scope.

Government by algorithm raises new challenges that are not captured in the e-government literature and the practice of public administration. Some sources equate cyberocracy, which is a hypothetical form of government that rules by the effective use of information, with algorithmic governance, although algorithms are not the only means of processing information. Nello Cristianini and Teresa Scantamburlo argued that the combination of a human society and an algorithmic regulation forms a social machine.

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πŸ”— Cabin Fever

πŸ”— Psychology

Cabin fever refers to the distressing claustrophobic irritability or restlessness experienced when a person, or group, is stuck at an isolated location or in confined quarters for an extended period of time. A person may be referred to as stir-crazy, derived from the use of stir to mean 'prison'.

A person may experience cabin fever in a situation such as being isolated within a vacation cottage out in the country, spending long periods underwater in a submarine, or being otherwise isolated from civilization. During cabin fever, a person may experience sleepiness or sleeplessness, have a distrust of anyone they are with, or have an urge to go outside even in adverse conditions such as poor weather or limited visibility. The concept is also invoked humorously to indicate simple boredom from being home alone for an extended period of time.

Cabin fever is not itself a disease and there is no prognosis. However, related symptoms can lead the sufferer to make irrational decisions that could potentially threaten their life or the life of the group with whom they are confined. Some examples would be suicide or paranoia, or leaving the safety of a cabin during a terrible snow storm that one may be stuck in.

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πŸ”— Claude Shannon

πŸ”— United States πŸ”— Biography πŸ”— Computer science πŸ”— Telecommunications πŸ”— Systems πŸ”— Biography/science and academia πŸ”— Cryptography πŸ”— Cryptography/Computer science πŸ”— Electronics πŸ”— Systems/Systems theory πŸ”— Telecommunications/Bell System πŸ”— Cycling

Claude Elwood Shannon (April 30, 1916 – February 24, 2001) was an American mathematician, electrical engineer, and cryptographer known as "the father of information theory". Shannon is noted for having founded information theory with a landmark paper, "A Mathematical Theory of Communication", that he published in 1948.

He is also well known for founding digital circuit design theory in 1937, whenβ€”as a 21-year-old master's degree student at the Massachusetts Institute of Technology (MIT)β€”he wrote his thesis demonstrating that electrical applications of Boolean algebra could construct any logical numerical relationship. Shannon contributed to the field of cryptanalysis for national defense during World War II, including his fundamental work on codebreaking and secure telecommunications.

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πŸ”— Airliner Number 4

πŸ”— Aviation

Airliner Number 4 was a design by Norman Bel Geddes and Otto A. Koller for a 9-deck amphibious passenger aircraft intended to replace the large transatlantic liners that traveled between Europe and North America before the Second World War. It was never built.

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πŸ”— Koomey's law

πŸ”— Computing

Koomey's law describes a trend in the history of computing hardware: for about a half-century, the number of computations per joule of energy dissipated doubled about every 1.57 years. Professor Jonathan Koomey described the trend in a 2010 paper in which he wrote that "at a fixed computing load, the amount of battery you need will fall by a factor of two every year and a half."

This trend had been remarkably stable since the 1950s (R2 of over 98%). But in 2011, Koomey re-examined this data and found that after 2000, the doubling slowed to about once every 2.6 years. This is related to the slowing of Moore's Law, the ability to build smaller transistors; and the end around 2005 of Dennard scaling, the ability to build smaller transistors with constant power density.

"The difference between these two growth rates is substantial. A doubling every year and a half results in a 100-fold increase in efficiency every decade. A doubling every two and a half years yields just a 16-fold increase", Koomey wrote.

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πŸ”— Phillis Wheatley

πŸ”— United States πŸ”— Biography πŸ”— Africa πŸ”— Poetry πŸ”— Women's History πŸ”— Women writers πŸ”— United States/Massachusetts πŸ”— African diaspora πŸ”— United States History πŸ”— United States/Massachusetts - Boston πŸ”— Africa/Gambia

Phillis Wheatley, also spelled Phyllis and Wheatly (c. 1753 – December 5, 1784) was the first African-American woman to publish a book of poetry. Born in West Africa, she was sold into slavery at the age of seven or eight and transported to North America. She was purchased by the Wheatley family of Boston, who taught her to read and write and encouraged her poetry when they saw her talent.

On a 1773 trip to London with her master's son, seeking publication of her work, she was aided in meeting prominent people who became patrons. The publication in London of her Poems on Various Subjects, Religious and Moral on September 1, 1773, brought her fame both in England and the American colonies. Figures such as George Washington praised her work. A few years later, African-American poet Jupiter Hammon praised her work in a poem of his own.

Wheatley was emancipated (set free) by the Wheatleys shortly after the publication of her book. She married in about 1778. Two of her children died as infants. After her husband was imprisoned for debt in 1784, Wheatley fell into working poverty and died of illness. Her last infant son died soon after.

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