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🔗 Insects 🔗 Insects/Ant

An ant mill is an observed phenomenon in which a group of army ants are separated from the main foraging party, lose the pheromone track and begin to follow one another, forming a continuously rotating circle, commonly known as a "death spiral" because the ants might eventually die of exhaustion. It has been reproduced in laboratories and has been produced in ant colony simulations. The phenomenon is a side effect of the self-organizing structure of ant colonies. Each ant follows the ant in front of it, which works until a slight deviation begins to occur, typically by an environmental trigger, and an ant mill forms. An ant mill was first described in 1921 by William Beebe, who observed a mill 1200 ft (~370 m) in circumference. It took each ant 2.5 hours to make one revolution. Similar phenomena have been noted in processionary caterpillars and fish.

🔗 Mathematics 🔗 India 🔗 India/Tamil Nadu

Ramanujan's lost notebook is the manuscript in which the Indian mathematician Srinivasa Ramanujan recorded the mathematical discoveries of the last year (1919–1920) of his life. Its whereabouts were unknown to all but a few mathematicians until it was rediscovered by George Andrews in 1976, in a box of effects of G. N. Watson stored at the Wren Library at Trinity College, Cambridge. The "notebook" is not a book, but consists of loose and unordered sheets of paper described as "more than one hundred pages written on 138 sides in Ramanujan's distinctive handwriting. The sheets contained over six hundred mathematical formulas listed consecutively without proofs."

George Andrews and Bruce C. Berndt (2005, 2009, 2012, 2013, 2018) have published several books in which they give proofs for Ramanujan's formulas included in the notebook. Berndt says of the notebook's discovery: "The discovery of this 'Lost Notebook' caused roughly as much stir in the mathematical world as the discovery of Beethoven’s tenth symphony would cause in the musical world."

🔗 Energy

A black start is the process of restoring an electric power station or a part of an electric grid to operation without relying on the external electric power transmission network to recover from a total or partial shutdown.

Normally, the electric power used within the plant is provided from the station's own generators. If all of the plant's main generators are shut down, station service power is provided by drawing power from the grid through the plant's transmission line. However, during a wide-area outage, off-site power from the grid is not available. In the absence of grid power, a so-called black start needs to be performed to bootstrap the power grid into operation.

To provide a black start, some power stations have small diesel generators, normally called the black start diesel generator (BSDG), which can be used to start larger generators (of several megawatts capacity), which in turn can be used to start the main power station generators. Generating plants using steam turbines require station service power of up to 10% of their capacity for boiler feedwater pumps, boiler forced-draft combustion air blowers, and for fuel preparation. It is uneconomical to provide such a large standby capacity at each station, so black-start power must be provided over designated tie lines from another station. Often hydroelectric power plants are designated as the black-start sources to restore network interconnections. A hydroelectric station needs very little initial power for starting purposes (just enough to open the intake gates and provide excitation current to the generator field coils), and can put a large block of power on line very quickly to allow start-up of fossil-fuel or nuclear stations. Certain types of combustion turbine can be configured for black start, providing another option in places without suitable hydroelectric plants. In 2017, a utility in Southern California successfully demonstrated the use of a battery-based energy-storage system to provide a black start, firing up a combined-cycle gas turbine from an idle state.

🔗 United States 🔗 Elections and Referendums

The Massachusetts "Right to Repair" Initiative, also known as Question 1, appeared on the Massachusetts 2012 general election ballot as an initiated state statute. The Right to Repair proposal was to require vehicle owners and independent repair facilities in Massachusetts to have access to the same vehicle diagnostic and repair information made available to the manufacturers' Massachusetts dealers and authorized repair facilities. The initiative passed with overwhelming voter support on November 6, 2012, with 86% for and 14% against. The measure, originally filed four times with the Massachusetts Attorney General, was filed by Arthur W. Kinsman, and was assigned initiative numbers 11-17.

2019 Ballot Initiative In early 2019 the Massachusetts Legislature submitted bills advocating change to close loopholes associated with wireless transmission of diagnostic information. Advocates supporting an update to the Massachusetts Right to Repair law have announced that the required signatures have been gathered to place Right to Repair on the November 3, 2020 ballot.

🔗 Norway

Norsk Data was a (mini-)computer manufacturer located in Oslo, Norway. Existing from 1967 to 1992, it had its most active period in the years from the early 1970s to the late 1980s. At the company's peak in 1987 it was the second largest company in Norway and employed over 4,500 people.

Throughout its history Norsk Data produced a long string of extremely innovative systems, with a disproportionately large number of world firsts. Some examples of this are the NORD-1, the first minicomputer to have memory paging as a standard option, and the first machine to have floating-point instructions standard, the NORD-5, the world's first 32-bit minicomputer (beating the VAX, often claimed the first, by 6 years)

🔗 Viruses 🔗 Biology 🔗 Philosophy 🔗 Philosophy/Contemporary philosophy 🔗 History of Science 🔗 Molecular and Cell Biology 🔗 Philosophy/Ethics 🔗 Genetics 🔗 Evolutionary biology 🔗 Science Policy 🔗 Molecular Biology/Molecular and Cell Biology

HeLa (; also Hela or hela) is an immortal cell line used in scientific research. It is the oldest and most commonly used human cell line. The line was derived from cervical cancer cells taken on February 8, 1951 from Henrietta Lacks, a patient who died of cancer on October 4, 1951. The cell line was found to be remarkably durable and prolific, which gives rise to its extensive use in scientific research.

The cells from Lacks's cancerous cervical tumor were taken without her knowledge or consent, which was common practice at the time. Cell biologist George Otto Gey found that they could be kept alive, and developed a cell line. Previously, cells cultured from other human cells would only survive for a few days. Scientists would spend more time trying to keep the cells alive than performing actual research on them. Cells from Lacks' tumor behaved differently. As was custom for Gey's lab assistant, she labeled the culture 'HeLa', the first two letters of the patient's first and last name; this became the name of the cell line.

These were the first human cells grown in a lab that were naturally "immortal", meaning that they do not die after a set number of cell divisions (i.e. cellular senescence). These cells could be used for conducting a multitude of medical experiments—if the cells died, they could simply be discarded and the experiment attempted again on fresh cells from the culture. This represented an enormous boon to medical and biological research, as previously stocks of living cells were limited and took significant effort to culture.

The stable growth of HeLa enabled a researcher at the University of Minnesota hospital to successfully grow polio virus, enabling the development of a vaccine, and by 1952, Jonas Salk developed a vaccine for polio using these cells. To test Salk's new vaccine, the cells were put into mass production in the first-ever cell production factory.

In 1953, HeLa cells were the first human cells successfully cloned and demand for the HeLa cells quickly grew in the nascent biomedical industry. Since the cells' first mass replications, they have been used by scientists in various types of investigations including disease research, gene mapping, effects of toxic substances on organisms, and radiation on humans. Additionally, HeLa cells have been used to test human sensitivity to tape, glue, cosmetics, and many other products.

Scientists have grown an estimated 50 million metric tons of HeLa cells, and there are almost 11,000 patents involving these cells.

The HeLa cell lines are also notorious for invading other cell cultures in laboratory settings. Some have estimated that HeLa cells have contaminated 10–20% of all cell lines currently in use.

🔗 Internet 🔗 Internet culture 🔗 Skepticism 🔗 Alternative Views

The dead Internet theory is a theory that asserts that the Internet now consists almost entirely of bot activity and automatically generated content, marginalizing human activity. The date given for this "death" is generally around 2016 or 2017.

In 2012, YouTube removed billions of video views from major record labels, such as Sony and Universal, as a result of discovering that they had used fraudulent services to artificially increase the views of their content. The removal of the inflated views aimed to restore credibility to the platform and improve the accuracy of view counts. The move by YouTube also signaled a change in the way the platform would tackle fake views and bot traffic.

🔗 Italy 🔗 Food and drink 🔗 Diptera 🔗 Food and drink/Cheeses

Casu martzu (Sardinian pronunciation: [ˈkazu ˈmaɾtsu]; literally 'rotten/putrid cheese'), sometimes spelled casu marzu, and also called casu modde, casu cundídu and casu fràzigu in Sardinian language, is a traditional Sardinian sheep milk cheese that contains live insect larvae (maggots). A variation of the cheese, casgiu merzu, is also produced in some Southern Corsican villages like Sartene.

Derived from pecorino, casu martzu goes beyond typical fermentation to a stage of decomposition, brought about by the digestive action of the larvae of the cheese fly of the Piophilidae family. These larvae are deliberately introduced to the cheese, promoting an advanced level of fermentation and breaking down of the cheese's fats. The texture of the cheese becomes very soft, with some liquid (called làgrima, Sardinian for "teardrop") seeping out. The larvae themselves appear as translucent white worms, roughly 8 mm (0.3 in) long.

🔗 Military history 🔗 Military history/Fortifications 🔗 Military history/Cold War 🔗 Military history/Balkan military history 🔗 Albania 🔗 Military history/European military history

Concrete military bunkers are a ubiquitous sight in Albania, with an average of 5.7 bunkers for every square kilometer (14.7 per square mile). The bunkers (Albanian: bunkerët) were built during the Hoxhaist government led by the Leader Enver Hoxha from the 1960s to the 1980s, as the government fortified Albania by building more than 750,000 bunkers.

Hoxha's program of "bunkerization" (bunkerizimi) resulted in the construction of bunkers in every corner of the then-People's Socialist Republic of Albania, ranging from mountain passes to city streets. They were never used for their intended purpose during the years that Hoxha governed. The cost of constructing them was a drain on Albania's resources, diverting them away from dealing with the country's housing shortage and poor roads.

The bunkers were abandoned following the dissolution of the communist government in 1992. A few were used in the Insurrection of 1997 and the Kosovo War of 1999. Most are now derelict, though some have been reused for a variety of purposes, including residential accommodation, cafés, storehouses, and shelters for animals or the homeless.

🔗 Board and table games

The Landlord's Game is a board game patented in 1904 by Elizabeth Magie as U.S. Patent 748,626. It is a realty and taxation game intended to educate users about Georgism. It is the inspiration for the board game Monopoly.