To stay up to date you can also follow on Mastodon.

🔗 Computing 🔗 Computing/Software

86-DOS is a discontinued operating system developed and marketed by Seattle Computer Products (SCP) for its Intel 8086-based computer kit. Initially known as QDOS (Quick and Dirty Operating System), the name was changed to 86-DOS once SCP started licensing the operating system in 1980.

86-DOS had a command structure and application programming interface that imitated that of Digital Research's CP/M operating system, which made it easy to port programs from the latter. The system was licensed and then purchased by Microsoft and developed further as MS-DOS and PC DOS.

🔗 Electronics

The 555 timer IC is an integrated circuit (chip) used in a variety of timer, delay, pulse generation, and oscillator applications. Derivatives provide two (556) or four (558) timing circuits in one package. Introduced in 1972 by Signetics, the 555 is still in widespread use due to its low price, ease of use, and stability. Numerous companies have made the original bipolar timers and similar low-power CMOS timers too. As of 2003, it was estimated that 1 billion units were manufactured every year. The 555 is the most popular integrated circuit ever manufactured.

🔗 Psychology

Mean world syndrome is a cognitive bias where people perceive the world to be more dangerous than it actually is due to long-term, moderate to heavy exposure to violence-related content on mass media.

Mean world syndrome asserts that viewers who are exposed to violence-related content can experience increased fear, anxiety, pessimism and heightened state of alert in response to perceived threats. This is because media (namely television) consumed by viewers has the power to directly influence and inform their attitudes, beliefs and opinions about the world.

Dr. George Gerbner, who coined the term mean world syndrome in the 1970s, began his research on the effects of violent media on individuals’ attitudes by claiming that a major cultural shift was taking place, where "who tells the stories of a culture really governs human behavior. It used to be the parent, the school, the church, the community. Now it's a handful of global conglomerates that have nothing to tell, but a great deal to sell."

Since TV was becoming an ever increasing presence in the average American household and the amount of violence on TV was growing exponentially, Gerbner conducted several large-scale studies that upheld his hypothesis: those who watched moderate to large amounts of TV believed the world to be a more dangerous place.

Since the 1970s, numerous studies have corroborated Gerbner's findings that moderate to heavy viewing of violence-related content on TV increased depression, fear, anxiety, anger, pessimism, post-traumatic stress and substance use. For example, in 2009, the American Academy of Pediatrics released a policy statement on media violence which concluded that “extensive research evidence indicates that media violence can contribute to aggressive behavior, desensitization to violence, nightmares, and fear of being harmed.”

🔗 United States 🔗 Biography 🔗 Chicago 🔗 African diaspora 🔗 United States/FBI 🔗 Civil Rights Movement 🔗 Illinois 🔗 Biography/Actors and Filmmakers

Fredrick Allen Hampton (August 30, 1948 – December 4, 1969) was an American activist and revolutionary socialist. He came to prominence in Chicago as chairman of the Illinois chapter of the Black Panther Party (BPP), and deputy chairman of the national BPP. In this capacity, he founded a prominent multicultural political organization, the Rainbow Coalition that initially included the Black Panthers, Young Patriots and the Young Lords, and an alliance among major Chicago street gangs to help them end infighting, and work for social change.

In 1967, Hampton was identified by the Federal Bureau of Investigation as a radical threat. The FBI tried to subvert his activities in Chicago, sowing disinformation among these groups and placing a counterintelligence operative in the local Panthers. In December 1969, Hampton was shot and killed in his bed during a predawn raid at his Chicago apartment by a tactical unit of the Cook County State's Attorney's Office in conjunction with the Chicago Police Department and the Federal Bureau of Investigation; during the raid, another Panther was killed and several seriously wounded. In January 1970, a coroner's jury held an inquest and ruled the deaths of Hampton and Mark Clark to be justifiable homicide.

A civil lawsuit was later filed on behalf of the survivors and the relatives of Hampton and Clark. It was resolved in 1982 by a settlement of $1.85 million; the City of Chicago, Cook County, and the federal government each paid one-third to a group of nine plaintiffs. Given revelations about the illegal COINTELPRO program and documents associated with the killings, scholars now widely consider Hampton's death an assassination under the FBI's initiative.

🔗 Computing 🔗 Computing/Computer hardware

The ILLIAC IV was the first massively parallel computer. The system was originally designed to have 256 64-bit floating point units (FPUs) and four central processing units (CPUs) able to process 1 billion operations per second. Due to budget constraints, only a single "quadrant" with 64 FPUs and a single CPU was built. Since the FPUs all had to process the same instruction – ADD, SUB etc. – in modern terminology the design would be considered to be single instruction, multiple data, or SIMD.

The concept of building a computer using an array of processors came to Daniel Slotnick while working as a programmer on the IAS machine in 1952. A formal design did not start until 1960, when Slotnick was working at Westinghouse Electric and arranged development funding under a US Air Force contract. When that funding ended in 1964, Slotnick moved to the University of Illinois and joined the Illinois Automatic Computer (ILLIAC) team. With funding from Advanced Research Projects Agency (ARPA), they began the design of a newer concept with 256 64-bit processors instead of the original concept with 1,024 1-bit processors.

While the machine was being built at Burroughs, the university began building a new facility to house it. Political tension over the funding from the US Department of Defense led to the ARPA and the University fearing for the machine's safety. When the first 64-processor quadrant of the machine was completed in 1972, it was sent to the NASA Ames Research Center in California. After three years of thorough modification to fix various flaws, ILLIAC IV was connected to the ARPANet for distributed use in November 1975, becoming the first network-available supercomputer, beating the Cray-1 by nearly 12 months.

Running at half its design speed, the one-quadrant ILLIAC IV delivered 50 MFLOP peak, making it the fastest computer in the world at that time. It is also credited with being the first large computer to use solid-state memory, as well as the most complex computer built to date, with over 1 million gates. Generally considered a failure due to massive budget overruns, the design was instrumental in the development of new techniques and systems for programming parallel systems. In the 1980s, several machines based on ILLIAC IV concepts were successfully delivered.

🔗 Philosophy 🔗 Skepticism 🔗 Psychology

Brandolini's law, also known as the bullshit asymmetry principle, is an internet adage which emphasizes the difficulty of debunking bullshit: "The amount of energy needed to refute bullshit is an order of magnitude bigger than to produce it."

🔗 United States 🔗 Biography 🔗 California 🔗 California/San Francisco Bay Area 🔗 Terrorism 🔗 Philosophy 🔗 Politics 🔗 Biography/science and academia 🔗 Criminal Biography 🔗 Chicago 🔗 United States/FBI 🔗 University of California 🔗 Illinois 🔗 Montana 🔗 Philosophy/Anarchism

Theodore John Kaczynski (; born May 22, 1942), also known as the Unabomber (), is an American domestic terrorist, anarchist, and former mathematics professor. He was a mathematics prodigy, but he abandoned his academic career in 1969 to pursue a more primitive lifestyle. Between 1978 and 1995, he killed three people and injured 23 others in an attempt to start a revolution by conducting a nationwide bombing campaign targeting people involved with modern technology.

In 1971, Kaczynski moved to a remote cabin without electricity or running water near Lincoln, Montana, where he lived as a recluse while learning survival skills in an attempt to become self-sufficient. He witnessed the destruction of the wilderness surrounding his cabin and concluded that living in nature was untenable; he began his bombing campaign in 1978. In 1995, he sent a letter to The New York Times and promised to "desist from terrorism" if the Times or The Washington Post published his essay Industrial Society and Its Future, in which he argued that his bombings were extreme but necessary to attract attention to the erosion of human freedom and dignity by modern technologies that require large-scale organization.

Kaczynski was the subject of the longest and most expensive investigation in the history of the Federal Bureau of Investigation. Before his identity was known, the FBI used the case identifier UNABOM (University and Airline Bomber) to refer to his case, which resulted in the media naming him the "Unabomber." The FBI and Attorney General Janet Reno pushed for the publication of Industrial Society and Its Future, which led to a tip from Kaczynski's brother David, who recognized the writing style.

After his arrest in 1996, Kaczynski tried unsuccessfully to dismiss his court-appointed lawyers because they wanted him to plead insanity in order to avoid the death penalty, whereas he did not believe that he was insane. In 1998, a plea bargain was reached under which he pleaded guilty to all charges and was sentenced to life in prison without possibility of parole.

🔗 Technology 🔗 Physics 🔗 Radio 🔗 Astronomy 🔗 Engineering

In engineering, the terahertz gap is a frequency band in the terahertz region of the electromagnetic spectrum between radio waves and infrared light for which practical technologies for generating and detecting the radiation do not exist. It is defined as 0.1 to 10 THz (wavelengths of 3 mm to 30 µm). Currently, at frequencies within this range, useful power generation and receiver technologies are inefficient and unfeasible.

Mass production of devices in this range and operation at room temperature (at which energy k·T is equal to the energy of a photon with a frequency of 6.2 THz) are mostly impractical. This leaves a gap between mature microwave technologies in the highest frequencies of the radio spectrum and the well developed optical engineering of infrared detectors in their lowest frequencies. This radiation is mostly used in small-scale, specialized applications such as submillimetre astronomy. Research that attempts to resolve this issue has been conducted since the late 20th century.

🔗 Languages 🔗 Constructed languages 🔗 Taoism

Toki Pona is a philosophical artistic constructed language known for its small vocabulary. It was created by Canadian linguist and translator Sonja Lang for the purpose of simplifying thoughts and communication. It was first published online in 2001 as a draft, and later in complete form in the book Toki Pona: The Language of Good in 2014. A small community of speakers developed in the early 2000s. The community grew after the release of the official book and has continued to grow larger since its publication. While activity mostly takes place online in chat rooms, on social media, and in other groups, there were a few organized in-person meetings during the 2010s.

The underlying feature of Toki Pona is minimalism. It focuses on simple universal concepts, making use of very little to express the most. The language is isolating and has 120–125 root words and 14 phonemes that are easy to pronounce across different languages. However, it was not created to be an international auxiliary language. Inspired by Taoist philosophy, the language is designed to help users concentrate on basic things and to promote positive thinking, in accordance with the Sapir–Whorf hypothesis. Despite the small vocabulary, speakers are able to understand and communicate with each other, mainly relying on context and combinations of several words to express more specific meanings.

🔗 Law Enforcement 🔗 Chicago

A police riot is a riot carried out by the police; a riot that the police are responsible for instigating, escalating or sustaining as a violent confrontation; an event characterized by widespread police brutality; a mass police action that is violently undertaken against civilians for the purpose of political repression. The term "police riot" was popularized after its use in the Walker Report, which investigated the events surrounding the 1968 Democratic National Convention in Chicago to describe the "unrestrained and indiscriminate" violence that the police "inflicted upon persons who had broken no law, disobeyed no order, made no threat." In this sense a police riot refers to rioting carried out by the police (or those acting in a police capacity) rather than a riot carried out by people who may be motivated to a greater or lesser degree by grievances with the police (see the 1981 Toxteth riots or the 1992 Los Angeles Riots for examples of riots over policing rather than police riots).