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🔗 Physics 🔗 Astronomy

The Oh-My-God particle was the highest-energy cosmic ray detected at the time (15 October 1991) by the Fly's Eye detector in Dugway Proving Ground, Utah, US. Its energy was estimated as (3.2±0.9)×10²⁰ eV, or 51 J. This is 20 million times more energetic than the highest energy measured in electromagnetic radiation emitted by an extragalactic object and 10²⁰ (100 quintillion) times the photon energy of visible light, equivalent to a 142-gram (5 oz) baseball travelling at about 26 m/s (94 km/h; 58 mph). Although higher energy cosmic rays have been detected since then, this particle's energy was unexpected, and called into question theories of that era about the origin and propagation of cosmic rays.

Assuming it was a proton, this particle traveled at 99.99999999999999999999951% of the speed of light, its Lorentz factor was 3.2×10¹¹ and its rapidity was 27.1. At this speed, if a photon were travelling with the particle, it would take over 215,000 years for the photon to gain a 1 cm lead as seen in Earth's reference frame.

The energy of this particle is some 40 million times that of the highest energy protons that have been produced in any terrestrial particle accelerator. However, only a small fraction of this energy would be available for an interaction with a proton or neutron on Earth, with most of the energy remaining in the form of kinetic energy of the products of the interaction. The effective energy available for such a collision is √2Emc², where E is the particle's energy and mc² is the mass energy of the proton. For the Oh-My-God particle, this gives 7.5×10¹⁴ eV, roughly 60 times the collision energy of the Large Hadron Collider.

While the particle's energy was higher than anything achieved in terrestrial accelerators, it was still about 40 million times lower than the Planck energy. Particles of such energy would be required in order to explore the Planck scale. A proton with that much energy would travel 1.665×10¹⁵ times closer to the speed of light than the Oh-My-God particle. As viewed from Earth it would take about 3.579×10²⁰ years, or 2.59×10¹⁰ times the current age of the universe, for a photon to gain a 1 cm lead over a Planck energy proton as observed in Earth's reference frame.

Since the first observation, at least 72 similar (energy > 5.7×10¹⁹ eV) events have been recorded, confirming the phenomenon. These ultra-high-energy cosmic ray particles are very rare; the energy of most cosmic ray particles is between 10 MeV and 10 GeV. More recent studies using the Telescope Array have suggested a source for the particles within a 20-degree radius "warm spot" in the direction of the constellation Ursa Major.

🔗 Finance & Investment 🔗 Economics 🔗 Sociology 🔗 Sociology/social movements 🔗 Basic Income 🔗 Social Work 🔗 International development

Basic income, also called universal basic income (UBI), citizen's income, citizen's basic income in the United Kingdom, basic income guarantee in the United States and Canada, or basic living stipend or guaranteed annual income or universal demogrant, is a governmental public program for a periodic payment delivered to all on an individual basis without means test or work requirement. The incomes would be:

• Unconditional: A basic income would vary with age, but with no other conditions. Everyone of the same age would receive the same basic income, whatever their gender, employment status, family structure, contribution to society, housing costs, or anything else.
• Automatic: Someone's basic income would be automatically paid weekly or monthly into a bank account or similar.
• Non-withdrawable: Basic incomes would not be means-tested. Whether someone's earnings increase, decrease, or stay the same, their basic income will not change.
• Individual: Basic incomes would be paid on an individual basis and not on the basis of a couple or household.
• As a right: Every legal resident would receive a basic income, subject to a minimum period of legal residency and continuing residency for most of the year.

Basic income can be implemented nationally, regionally or locally. An unconditional income that is sufficient to meet a person's basic needs (at or above the poverty line) is sometimes called a full basic income while if it is less than that amount, it is sometimes called partial. A welfare system with some characteristics similar to those of a basic income is a negative income tax in which the government stipend is gradually reduced with higher labour income. Some welfare systems are sometimes regarded as steps on the way to a basic income, but because they have conditionalities attached they are not basic incomes. If they raise household incomes to specified minima they are called guaranteed minimum income systems. For example, Bolsa Família in Brazil is restricted to poor families and the children are obligated to attend school.

Several political discussions are related to the basic income debate. Examples include the debates regarding robotization, artificial intelligence (AI), and the future of work. A key issue in these debates is whether robotisation and AI will significantly reduce the number of available jobs. Basic income often comes up as a proposal in these discussions.

🔗 Biography 🔗 Women writers 🔗 Biography/arts and entertainment 🔗 Journalism 🔗 Malta

Daphne Anne Caruana Galizia (née Vella; 26 August 1964 – 16 October 2017) was a Maltese writer, journalist, blogger and anti-corruption activist, who reported on political events in Malta. In particular, she focused on investigative journalism, reporting on government corruption, nepotism, patronage, allegations of money laundering, links between Malta's online gambling industry and organized crime, Malta's citizenship-by-investment scheme, and payments from the government of Azerbaijan. Caruana Galizia's national and international reputation was built on her regular reporting of misconduct by Maltese politicians and politically exposed persons.

Caruana Galizia continued to publish articles for decades, despite intimidation and threats, libel suits and other lawsuits. She was arrested by the Malta Police Force on two occasions. Caruana Galizia's investigations were published via her personal blog Running Commentary, which she set up in 2008. She was a regular columnist with The Sunday Times of Malta and later The Malta Independent. Her blog consisted of investigative reporting and commentary, some of which was regarded as personal attacks on individuals, leading to a series of legal battles. In 2016 and 2017, she revealed controversially sensitive information and allegations relating to a number of Maltese politicians and the Panama Papers scandal.

On 16 October 2017, Caruana Galizia was killed close to her home when a car bomb was detonated inside her vehicle, attracting widespread local and international condemnation of the attack. In December 2017, three men were arrested in connection with the car bomb attack. Police arrested Yorgen Fenech, the owner of the Dubai-based company 17 Black, on his yacht on 20 November 2019 in connection with her murder.

In April 2018, an international consortium of 45 journalists published The Daphne Project, a collaboration to complete her investigative work. The GUE/NGL Award for Journalists, Whistleblowers & Defenders of the Right to Information was established in 2018 in honour of Galizia.

🔗 Lists 🔗 Songs

This is a list of musical compositions or pieces of music that have unusual time signatures. "Unusual" is here defined to be any time signature other than simple time signatures with top numerals of 2, 3, or 4 and bottom numerals of 2, 4, or 8, and compound time signatures with top numerals of 6, 9, or 12 and bottom numerals 4, 8, or 16.

The conventions of musical notation typically allow for more than one written representation of a particular piece. The chosen time signature largely depends upon musical context, personal taste of the composer or transcriber, and the graphic layout on the written page. Frequently, published editions were written in a specific time signature to visually signify the tempo for slow movements in symphonies, sonatas, and concerti.

A perfectly consistent unusual metrical pattern may be notated in a more familiar time signature that does not correspond to it. For example, the Passacaglia from Britten's opera Peter Grimes consists of variations over a recurring bass line eleven beats in length but is notated in ordinary ⁴
₄ time, with each variation lasting 2+3⁄4 bars, and therefore commencing each time one crotchet earlier in the bar than the preceding one.

🔗 Biography 🔗 Biography/Musicians 🔗 Jazz

Louis Thomas Hardin (May 26, 1916 – September 8, 1999), also known as Moondog, was an American musician, composer, theoretician, poet and inventor of several musical instruments. He was blind from the age of 16.

Hardin lived in New York City from the late 1940s until 1972, and during this time he could often be found on 6th Avenue, between 52nd and 55th Streets, wearing a cloak and a horned helmet sometimes busking or selling music, but often just standing silently on the sidewalk. He was widely recognized as "the Viking of 6th Avenue" by thousands of passersby and residents who were not aware of his musical career.

🔗 United States 🔗 Politics 🔗 Politics/American politics 🔗 Elections and Referendums 🔗 United States/U.S. presidential elections

The 1876 United States presidential election was the 23rd quadrennial presidential election, held on Tuesday, November 7, 1876, in which Republican nominee Rutherford B. Hayes faced Democrat Samuel J. Tilden. It was one of the most contentious and controversial presidential elections in American history, and gave rise to the Compromise of 1877 by which the Democrats conceded the election to Hayes in return for an end to Reconstruction and the withdrawal of federal troops from the South. After a controversial post-election process, Hayes was declared the winner.

After President Ulysses S. Grant declined to seek a third term despite previously being expected to do so, Congressman James G. Blaine emerged as the front-runner for the Republican nomination. However, Blaine was unable to win a majority at the 1876 Republican National Convention, which settled on Governor Hayes of Ohio as a compromise candidate. The 1876 Democratic National Convention nominated Governor Tilden of New York on the second ballot.

The results of the election remain among the most disputed ever. Although it is not disputed that Tilden outpolled Hayes in the popular vote, after a first count of votes, Tilden had won 184 electoral votes to Hayes's 165, with 20 votes from four states unresolved: in Florida, Louisiana, and South Carolina, each party reported its candidate had won the state, while in Oregon, one elector was replaced after being declared illegal for being an "elected or appointed official". The question of who should have been awarded these electoral votes is the source of the continued controversy.

An informal deal was struck to resolve the dispute: the Compromise of 1877, which awarded all 20 electoral votes to Hayes; in return for the Democrats' acquiescence to Hayes' election, the Republicans agreed to withdraw federal troops from the South, ending Reconstruction. The Compromise in effect ceded power in the Southern states to the Democratic Redeemers, who proceeded to disenfranchise black voters thereafter.

The 1876 election is the second of five presidential elections in which the person who won the most popular votes did not win the election, but the only such election in which the popular vote winner received a majority (rather than a plurality) of the popular vote. To date, it remains the election that recorded the smallest electoral vote victory (185–184), and the election that yielded the highest voter turnout of the eligible voting age population in American history, at 81.8%. Despite not becoming president, Tilden was the first Democratic presidential nominee since James Buchanan in 1856 to win the popular vote and the first since Franklin Pierce in 1852 to do so in an outright majority (In fact, Tilden received a slightly higher percentage than Pierce in 1852, despite the fact that Pierce won in a landslide).

🔗 United States/U.S. Government 🔗 United States 🔗 International relations 🔗 Military history 🔗 Military history/North American military history 🔗 Military history/United States military history 🔗 Terrorism 🔗 Military history/Cold War 🔗 Cold War 🔗 Military history/South American military history 🔗 Cuba

Operation Northwoods was a proposed false flag operation against the Cuban government that originated within the U.S. Department of Defense (DoD) and the Joint Chiefs of Staff (JCS) of the United States government in 1962. The proposals called for the Central Intelligence Agency (CIA) or other U.S. government operatives to both stage and actually commit acts of terrorism against American military and civilian targets, blaming them on the Cuban government, and using it to justify a war against Cuba. The possibilities detailed in the document included the possible assassination of Cuban immigrants, sinking boats of Cuban refugees on the high seas, hijacking planes to be shot down or given the appearance of being shot down, blowing up a U.S. ship, and orchestrating violent terrorism in U.S. cities. The proposals were rejected by President John F. Kennedy.

Communists led by Fidel Castro had taken power in Cuba in 1959, which aroused the concern of the U.S. military due to the Cold War. The operation proposed creating public support for a war against Cuba by blaming it for terrorist acts that would actually be perpetrated by the U.S. Government. To this end, Operation Northwoods proposals recommended hijackings and bombings followed by the introduction of phony evidence that would implicate the Cuban government. It stated:

The desired result from the execution of this plan would be to place the United States in the apparent position of suffering defensible grievances from a rash and irresponsible government of Cuba and to develop an international image of a Cuban threat to peace in the Western Hemisphere.

Several other proposals were included within Operation Northwoods, including real or simulated actions against various U.S. military and civilian targets. The operation recommended developing a "Communist Cuban terror campaign in the Miami area, in other Florida cities and even in Washington".

The plan was drafted by the Joint Chiefs of Staff, signed by Chairman Lyman Lemnitzer and sent to the Secretary of Defense. Although part of the U.S. government's anti-communist Cuban Project, Operation Northwoods was never officially accepted; it was authorized by the Joint Chiefs of Staff, but then rejected by President John F. Kennedy. According to currently released documentation, none of the operations became active under the auspices of the Operation Northwoods proposals.

🔗 Spaceflight

Mercury-Redstone 1 (MR-1) was the first Mercury-Redstone unmanned flight test in Project Mercury and the first attempt to launch a Mercury spacecraft with the Mercury-Redstone Launch Vehicle. Intended to be an unmanned sub-orbital spaceflight, it was launched on November 21, 1960 from Cape Canaveral Air Force Station, Florida. The launch failed in a peculiar fashion which has been referred to as the "four-inch flight".

🔗 Astronomy 🔗 Geology 🔗 Weather 🔗 Astronomy/Solar System 🔗 Weather/Weather 🔗 Weather/Space weather

A Miyake event is an observed sharp enhancement of the production of cosmogenic isotopes by cosmic rays. It can be marked by a spike in the concentration of radioactive carbon isotope ¹⁴
C in tree rings, as well as ¹⁰
Be and ³⁶
Cl in ice cores, which are all independently dated. At present, five significant events are known (7176 BCE, 5259 BCE, 660 BCE, 774 CE, 993 CE) for which the spike in ¹⁴
C is quite remarkable, i.e. above 1% rise over a period of 2 years, and four more events (12,350 BCE, 5410 BCE, 1052 CE, 1279 CE) need independent confirmation. It is not known how often Miyake events occur, but from the available data it is estimated to be every 400–2400 years.

There is strong evidence that Miyake events are caused by extreme solar particle events and they are likely related to super-flares discovered on solar-like stars. Although Miyake events are based on extreme year-to-year rises of ¹⁴
C concentration, the duration of the periods over which the ¹⁴
C levels increase or stay at high levels is longer than one year. However, a universal cause and origin of all the events is not yet established in science, and some of the events may be caused by other phenomena coming from outer space (such as a gamma-ray burst).

A recently reported sharp spike in ¹⁴
C that occurred between 12,350 and 12,349 BCE, may represent the largest known Miyake event. This event was identified during a study conducted by an international team of researchers who measured radiocarbon levels in ancient trees recovered from the eroded banks of the Drouzet River, near Gap, France, in the Southern French Alps. According to the initial study the new event is roughly twice the size of the Δ¹⁴
C increase for more recent 774 CE and 993 CE events, but the strength of the corresponding solar storm is not yet assessed. However, the newly discovered 12,350 BCE event has not yet been independently confirmed in wood from other regions, nor it is reliably supported by a clear corresponding spike in other isotopes (such as Beryllium-10) that are usually used in combination for absolute radiometric dating.

A Miyake event occurring in modern conditions might have significant impacts on global technological infrastructure such as satellites, telecommunications, and power grids.

🔗 Lists 🔗 Skepticism 🔗 Counter-Vandalism Unit

This is a list of known historical hoaxes on Wikipedia. Its purpose is to document hoaxes on Wikipedia, in order to improve our understanding of them and our ability to detect them. For the purpose of this list, a hoax is defined as a clear and deliberate attempt to deceptively present false information as fact. Libel, vandalism, and honest factual errors are not considered hoaxes. A hoax is considered notable enough for inclusion in this list if it evaded detection for more than one month or was discussed by reliable sources in the media. This list is incomplete, as many hoaxes remain undiscovered.

Hoaxes can be added to this page if they meet the requirements above. Do not list Wikipedia April Fools' Day pranks or factual articles about encyclopedically notable hoaxes. Start/Deletion date and Length are the dates and approximate time the article was generally visible.

For many of the below hoaxes, you can see an archived version of the deleted article by clicking on its title (see also list of archived hoaxes). Some also remain available from mirror sites. Any administrator can create an archived version of a hoax upon request by following the instructions below.

Academic research has investigated the impact and characteristics of Wikipedia hoaxes, and has proposed automated methods for detecting them. Researchers found that the automatic classification system was better at identifying hoaxes on Wikipedia than humans (86% vs. 63% accuracy) and used their algorithm to identify previously undiscovered hoaxes like "Steve Moertel" which went undetected for almost 7 years.

One way to identify hoax articles included examining the article structure and content, its mentions in other articles on Wikipedia (i.e., embeddedness), and features of the editor who created the page. Specifically, hoax articles are likely to be longer than a legitimate article, less likely to have links to other Wikipedia articles, references, images, or other "wiki-like" markup, less likely to be mentioned in other Wikipedia articles before its creation, and more likely to be created by a new account with few to no other edits.

While most hoaxes on Wikipedia are short-lived (90% of discovered hoaxes are flagged within one hour of creation and only 1% of hoaxes persist for more than a year), those that make it past this initial screening have an increased probability of continuing to "survive" and remain a part of Wikipedia for much longer (if a hoax survives past its first day, it has an 18% probability of lasting for a year or more). Compared to unsuccessful hoaxes, successful hoaxes that survive for long periods of time are more likely to include some "wiki-like" mark-up and more likely to include links to other articles on Wikipedia.

Compared to legitimate articles, successful hoaxes generally receive less daily traffic, have a longer median article length (134 vs. 71 words), and include fewer links to other Wikipedia articles when considering their article length.