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π List of Laboratory Biosecurity Incidents
This list of laboratory biosecurity incidents includes accidental laboratory-acquired infections and laboratory releases of lethal pathogens, containment failures in or during transport of lethal pathogens, and incidents of exposure of lethal pathogens to laboratory personnel, improper disposal of contaminated waste, and/or the escape of laboratory animals. The list is grouped by the year in which the accident or incident occurred and does not include every reported laboratory-acquired infection.
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- "List of Laboratory Biosecurity Incidents" | 2022-01-04 | 25 Upvotes 5 Comments
π Jane's Information Group
Jane's Information Group, now styled Janes, is a global open-source intelligence company specialising in military, national security, aerospace and transport topics, whose name derives from British author Fred T. Jane.
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- "Jane's Information Group" | 2022-01-02 | 11 Upvotes 1 Comments
π Airbus Beluga
The Airbus A300-600ST (Super Transporter), or Beluga, is a version of the standard A300-600 wide-body airliner modified to carry aircraft parts and outsize cargo. It received the official name of Super Transporter early on; however, the name Beluga, a whale it resembles, gained popularity and has since been officially adopted. The Beluga XL, based on the Airbus A330 with similar modifications and dimensions, was developed by Airbus to replace the type in January 2020.
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- "Airbus Beluga" | 2022-01-01 | 93 Upvotes 56 Comments
π Nikon F-Mount
The Nikon F-mount is a type of interchangeable lens mount developed by Nikon for its 35mm format single-lens reflex cameras. The F-mount was first introduced on the Nikon F camera in 1959, and features a three-lug bayonet mount with a 44Β mm throat and a flange to focal plane distance of 46.5Β mm. The company continues, with the 2020 D6 model, to use variations of the same lens mount specification for its film and digital SLR cameras.
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- "Nikon F-Mount" | 2021-12-28 | 33 Upvotes 78 Comments
π Kon Tiki Expedition
The Kon-Tiki expedition was a 1947 journey by raft across the Pacific Ocean from South America to the Polynesian islands, led by Norwegian explorer and writer Thor Heyerdahl. The raft was named Kon-Tiki after the Inca god Viracocha, for whom "Kon-Tiki" was said to be an old name. Kon-Tiki is also the name of Heyerdahl's book, the Academy Award-winning 1950 documentary film chronicling his adventures, and the 2012 dramatized feature film nominated for the Academy Award for Best Foreign Language Film.
Heyerdahl believed that people from South America could have reached Polynesia during pre-Columbian times. His aim in mounting the Kon-Tiki expedition was to show, by using only the materials and technologies available to those people at the time, that there were no technical reasons to prevent them from having done so. Although the expedition carried some modern equipment, such as a radio, watches, charts, sextant, and metal knives, Heyerdahl argued they were incidental to the purpose of proving that the raft itself could make the journey.
Heyerdahl's hypothesis of a South American origin of the Polynesian peoples, as well as his "drift voyaging" hypothesis, is generally rejected by scientists today. Archaeological, linguistic, cultural, and genetic evidence tends to support a western origin for Polynesians, from Island Southeast Asia, using sophisticated multihull sailing technologies and navigation techniques during the Austronesian expansion. However, there is evidence of some gene flow from South America to Easter Island.
The Kon-Tiki expedition was funded by private loans, along with donations of equipment from the United States Army. Heyerdahl and a small team went to Peru, where, with the help of dockyard facilities provided by the Peruvian authorities, they constructed the raft out of balsa logs and other native materials in an indigenous style as recorded in illustrations by Spanish conquistadores. The trip began on April 28, 1947. Heyerdahl and five companions sailed the raft for 101 days over 6,900Β km (4,300 miles) across the Pacific Ocean before smashing into a reef at Raroia in the Tuamotus on August 7, 1947. The crew made successful landfall and all returned safely.
Thor Heyerdahl's book about his experience became a bestseller. It was published in Norwegian in 1948 as The Kon-Tiki Expedition: By Raft Across the South Seas, later reprinted as Kon-Tiki: Across the Pacific in a Raft. It appeared with great success in English in 1950, also in many other languages. A documentary motion picture about the expedition, also called Kon-Tiki, was produced from a write-up and expansion of the crew's filmstrip notes and won an Academy Award in 1951. It was directed by Heyerdahl and edited by Olle Nordemar. The voyage was also chronicled in the documentary TV-series The Kon-Tiki Man: The Life and Adventures of Thor Heyerdahl, directed by Bengt Jonson.
The original Kon-Tiki raft is now on display in the Kon-Tiki Museum at BygdΓΈy in Oslo.
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- "Kon Tiki Expedition" | 2021-12-30 | 27 Upvotes 1 Comments
π 54% of adults in the United States have prose literacy below the 6th-grade level
A 2019 report by the National Center for Education Statistics determined that mid to high literacy in the United States is 79% with 21% of American adults categorized as having "low level English literacy," including 4.1% classified as "functionally illiterate" and an additional 4% that could not participate. According to the U.S. Department of Education, 54% of adults in the United States have prose literacy below the 6th-grade level.
In many nations, the ability to read a simple sentence suffices as literacy, and was the previous standard for the U.S. The definition of literacy has changed greatly; the term is presently defined as the ability to use printed and written information to function in society, to achieve one's goals, and to develop one's knowledge and potential.
The United States Department of Education assesses literacy in the general population through its National Assessment of Adult Literacy (NAAL). The NAAL survey defines three types of literacy:
- prose literacy: the knowledge and skills needed to search, comprehend, and use continuous texts. Examples include editorials, news stories, brochures, and instructional materials.
- document literacy: the knowledge and skills needed to search, comprehend, and use non-continuous texts in various formats. Examples include job applications, payroll forms, transportation schedules, maps, tables, and drug and food labels.
- quantitative literacy: the knowledge and skills required to identify and perform computations, either alone or sequentially, using numbers embedded in printed materials. Examples include balancing a checkbook, figuring out tips, completing an order form, or determining an amount.
Modern jobs often demand a high level of literacy, and its lack in adults and adolescents has been studied extensively.
According to a 1992 survey, about 40 million adults had Level 1 literary competency, the lowest level, comprising understanding only basic written instructions. A number of reports and studies are published annually to monitor the nation's status, and initiatives to improve literacy rates are funded by government and external sources.
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- "54% of adults in the United States have prose literacy below the 6th-grade level" | 2021-12-29 | 166 Upvotes 207 Comments
π Time formatting and storage bugs
In computer science, time formatting and storage bugs are a class of software bugs which may cause time and date calculation or display to be improperly handled. These are most commonly manifestations of arithmetic overflow, but can also be the result of other issues. The most well-known consequence of bugs of this type is the Y2K problem, but many other milestone dates or times exist that have caused or will cause problems depending on various programming deficiencies.
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- "Time formatting and storage bugs" | 2021-12-26 | 47 Upvotes 2 Comments
π McNamara Fallacy
The McNamara fallacy (also known as the quantitative fallacy), named for Robert McNamara, the US Secretary of Defense from 1961 to 1968, involves making a decision based solely on quantitative observations (or metrics) and ignoring all others. The reason given is often that these other observations cannot be proven.
The first step is to measure whatever can be easily measured. This is OK as far as it goes. The second step is to disregard that which can't be easily measured or to give it an arbitrary quantitative value. This is artificial and misleading. The third step is to presume that what can't be measured easily really isn't important. This is blindness. The fourth step is to say that what can't be easily measured really doesn't exist. This is suicide.
The fallacy refers to McNamara's belief as to what led the United States to defeat in the Vietnam Warβspecifically, his quantification of success in the war (e.g., in terms of enemy body count), ignoring other variables.
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- "McNamara Fallacy" | 2024-04-17 | 24 Upvotes 23 Comments
- "McNamara Fallacy" | 2021-12-26 | 23 Upvotes 2 Comments
π London Beer Flood of 1814
The London Beer Flood was an accident at Meux & Co's Horse Shoe Brewery, London, on 17 October 1814. It took place when one of the 22-foot-tall (6.7Β m) wooden vats of fermenting porter burst. The pressure of the escaping liquid dislodged the valve of another vessel and destroyed several large barrels: between 128,000 and 323,000 imperial gallons (580,000β1,470,000 L; 154,000β388,000 US gal) of beer were released in total.
The resulting wave of porter destroyed the back wall of the brewery and swept into an area of slum dwellings known as the St Giles rookery. Eight people were killed, five of them mourners at the wake being held by an Irish family for a two-year-old boy. The coroner's inquest returned a verdict that the eight had lost their lives "casually, accidentally and by misfortune". The brewery was nearly bankrupted by the event; it avoided collapse after a rebate from HM Excise on the lost beer. The brewing industry gradually stopped using large wooden vats after the accident. The brewery moved in 1921, and the Dominion Theatre is now where the brewery used to stand. Meux & Co went into liquidation in 1961.
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- "London Beer Flood of 1814" | 2021-12-24 | 91 Upvotes 24 Comments
π Rosemary Kennedy
Rose Marie "Rosemary" Kennedy (September 13, 1918 β January 7, 2005) was the eldest daughter born to Joseph P. Kennedy Sr. and Rose Fitzgerald Kennedy. She was a sister of President John F. Kennedy and Senators Robert F. and Ted Kennedy.
In her early young adult years, Rosemary Kennedy experienced seizures and violent mood swings. In response to these issues, her father arranged a prefrontal lobotomy for her in 1941 when she was 23 years of age; the procedure left her permanently incapacitated and rendered her unable to speak intelligibly.
Rosemary Kennedy spent most of the rest of her life being cared for at St. Coletta, an institution in Jefferson, Wisconsin. The truth about her situation and whereabouts was kept secret for decades. While she was initially isolated from her siblings and extended family following her lobotomy, Rosemary did go on to visit them during her later life.