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🔗 Soviet Union 🔗 Russia 🔗 Russia/technology and engineering in Russia 🔗 Environment 🔗 Disaster management 🔗 Energy 🔗 Russia/history of Russia 🔗 Science Policy

The Kyshtym disaster, sometimes referred to as the Mayak disaster or Ozyorsk disaster in newer sources, was a radioactive contamination accident that occurred on 29 September 1957 at Mayak, a plutonium production site for nuclear weapons and nuclear fuel reprocessing plant located in the closed city of Chelyabinsk-40 (now Ozyorsk) in Chelyabinsk Oblast, Russian SFSR, Soviet Union.

The disaster was the second worst nuclear incident (by radioactivity released) after the Chernobyl disaster. It measured as a Level 6 disaster on the International Nuclear Event Scale (INES), making it the third highest on the INES (which ranks by population impact), behind Chernobyl (evacuated 335,000 people) and the Fukushima Daiichi nuclear disaster (evacuated 154,000 people) which are both Level 7 on the INES. At least twenty-two villages were exposed to radiation from the Kyshtym disaster, with a total population of around 10,000 people evacuated. Some were evacuated after a week, but it took almost two years for evacuations to occur at other sites.

The disaster spread hot particles over more than 52,000 square kilometres (20,000 sq mi), where at least 270,000 people lived. Since Chelyabinsk-40 (later renamed Chelyabinsk-65 until 1994) was not marked on maps, the disaster was named after Kyshtym, the nearest known town.

🔗 Human rights 🔗 Military history 🔗 Military history/North American military history 🔗 Military history/United States military history 🔗 Crime 🔗 Women's History 🔗 Correction and Detention Facilities 🔗 Guild of Copy Editors 🔗 Iraq

During the early stages of the Iraq War, members of the United States Army and the CIA committed a series of human rights violations and war crimes against detainees in the Abu Ghraib prison in Iraq, including physical and sexual abuse, torture, rape and the killing of Manadel al-Jamadi. The abuses came to public attention with the publication of photographs of the abuse by CBS News in April 2004. The incidents caused shock and outrage, receiving widespread condemnation within the United States and internationally.

The George W. Bush administration claimed that the abuses at Abu Ghraib were isolated incidents and not indicative of U.S. policy.^: 328 This was disputed by humanitarian organizations including the Red Cross, Amnesty International, and Human Rights Watch; these organizations stated that the abuses at Abu Ghraib were part of a wider pattern of torture and brutal treatment at American overseas detention centers, including those in Iraq, in Afghanistan, and at Guantanamo Bay.^: 328

Documents popularly known as the Torture Memos came to light a few years later. These documents, prepared in the months leading up to the 2003 invasion of Iraq by the United States Department of Justice, authorized certain enhanced interrogation techniques (generally held to involve torture) of foreign detainees. The memoranda also argued that international humanitarian laws, such as the Geneva Conventions, did not apply to American interrogators overseas. Several subsequent U.S. Supreme Court decisions, including Hamdan v. Rumsfeld (2006), have overturned Bush administration policy, ruling that the Geneva Conventions do apply.

In response to the events at Abu Ghraib, the United States Department of Defense removed 17 soldiers and officers from duty. Eleven soldiers were charged with dereliction of duty, maltreatment, aggravated assault and battery. Between May 2004 and April 2006, these soldiers were court-martialed, convicted, sentenced to military prison, and dishonorably discharged from service. Two soldiers, found to have perpetrated many of the worst offenses at the prison, Specialist Charles Graner and PFC Lynndie England, were subject to more severe charges and received harsher sentences. Graner was convicted of assault, battery, conspiracy, maltreatment of detainees, committing indecent acts and dereliction of duty; he was sentenced to 10 years imprisonment and loss of rank, pay and benefits. England was convicted of conspiracy, maltreating detainees and committing an indecent act and sentenced to three years in prison. Brigadier General Janis Karpinski, the commanding officer of all detention facilities in Iraq, was reprimanded and demoted to the rank of colonel. Several more military personnel who were accused of perpetrating or authorizing the measures, including many of higher rank, were not prosecuted. In 2004, President George W. Bush and Defense Secretary Donald Rumsfeld apologized for the Abu Ghraib abuses.

🔗 Internet 🔗 Computing 🔗 Computing/Networking

Mbone (short for "multicast backbone") was an experimental backbone and virtual network built on top of the Internet for carrying IP multicast traffic on the Internet. It was developed in the early 1990s and required specialized hardware and software. Since the operators of most Internet routers have disabled IP multicast due to concerns regarding bandwidth tracking and billing, the Mbone was created to connect multicast-capable networks over the existing Internet infrastructure.

🔗 Highways 🔗 Road transport 🔗 Highways/Road transport

A diverging diamond interchange (DDI), also called a double crossover diamond interchange (DCD), is a type of diamond interchange in which the two directions of traffic on the non-freeway road cross to the opposite side on both sides of the bridge at the freeway. It is unusual in that it requires traffic on the freeway overpass (or underpass) to briefly drive on the opposite side of the road from what is customary for the jurisdiction. The crossover "X" sections can either be traffic-light intersections or one-side overpasses to travel above the opposite lanes without stopping, to allow nonstop traffic flow when relatively sparse traffic.

Like the continuous flow intersection, the diverging diamond interchange allows for two-phase operation at all signalized intersections within the interchange. This is a significant improvement in safety, since no long turns (e.g. left turns where traffic drives on the right side of the road) must clear opposing traffic and all movements are discrete, with most controlled by traffic signals. Its at-grade variant can be seen as a two-leg continuous flow intersection.

Additionally, the design can improve the efficiency of an interchange, as the lost time for various phases in the cycle can be redistributed as green time—there are only two clearance intervals (the time for traffic signals to change from green to yellow to red) instead of the six or more found in other interchange designs.

A diverging diamond can be constructed for limited cost, at an existing straight-line bridge, by building crisscross intersections outside the bridge ramps to switch traffic lanes before entering the bridge. The switchover lanes, each with 2 side ramps, introduce a new risk of drivers turning onto an empty, wrong-way, do-not-enter, exit lane and driving the wrong way down a freeway exit ramp to confront high-speed, oncoming traffic. Studies have analyzed various roadsigns to reduce similar driver errors.

Diverging diamond roads have been used in France since the 1970s. However, the diverging diamond interchange was listed by Popular Science magazine as one of the best innovations in 2009 (engineering category) in "Best of What's New 2009".

The design also is promoted as part of the Federal Highway Administration's Every Day Counts initiative which started in 2011.

🔗 Philosophy 🔗 Philosophy/Philosophy of religion 🔗 Philosophy/Philosophy of mind 🔗 Philosophy/Metaphysics

Neutral monism is an umbrella term for a class of metaphysical theories in the philosophy of mind, concerning the relation of mind to matter. These theories take the fundamental nature of reality to be neither mental nor physical; in other words it is "neutral".

Neutral monism has gained prominence as a potential solution to theoretical issues within the philosophy of mind, specifically the mind–body problem and the hard problem of consciousness. The mind–body problem is the problem of explaining how mind relates to matter. The hard problem is a related philosophical problem targeted at physicalist theories of mind specifically: the problem arises because it is not obvious how a purely physical universe could give rise to conscious experience. This is because physical explanations are mechanistic: that is, they explain phenomena by appealing to underlying functions and structures. And, though explanations of this sort seem to work well for a wide variety of phenomena, conscious experience seems uniquely resistant to functional explanations. As the philosopher David Chalmers has put it: "even when we have explained the performance of all the cognitive and behavioral functions in the vicinity of experience - perceptual discrimination, categorization, internal access, verbal report - there may still remain a further unanswered question: Why is the performance of these functions accompanied by experience?" The hard problem has motivated Chalmers and other philosophers to abandon the project of explaining consciousness in terms physical or chemical mechanisms (only 56.5% of philosophers are physicalists, according to the most recent PhilPapers survey).

With this, there has been growing demand for alternative ontologies (such as neutral monism) that may provide explanatory frameworks more suitable for explaining the existence of consciousness. It has been accepted by several prominent English-speaking philosophers, such as William James and Bertrand Russell.

🔗 Computing 🔗 Computing/Computer hardware 🔗 Computing/Software

On the x86 computer architecture, a triple fault is a special kind of exception generated by the CPU when an exception occurs while the CPU is trying to invoke the double fault exception handler, which itself handles exceptions occurring while trying to invoke a regular exception handler.

x86 processors beginning with the 80286 will cause a shutdown cycle to occur when a triple fault is encountered. This typically causes the motherboard hardware to initiate a CPU reset, which, in turn, causes the whole computer to reboot.

🔗 Science 🔗 Tree of Life

Lumpers and splitters are opposing factions in any discipline that has to place individual examples into rigorously defined categories. The lumper–splitter problem occurs when there is the desire to create classifications and assign examples to them, for example schools of literature, biological taxa and so on. A "lumper" is an individual who takes a gestalt view of a definition, and assigns examples broadly, assuming that differences are not as important as signature similarities. A "splitter" is an individual who takes precise definitions, and creates new categories to classify samples that differ in key ways.

🔗 Classical Greece and Rome 🔗 Turkey 🔗 Mills

The Hierapolis sawmill was a Roman water-powered stone sawmill at Hierapolis, Asia Minor (modern-day Turkey). Dating to the second half of the 3rd century AD, the sawmill is considered the earliest known machine to combine a crank with a connecting rod to form a crank slider mechanism.

The watermill is evidenced by a raised relief on the sarcophagus of a certain Marcus Aurelius Ammianos, a local miller. On the pediment a waterwheel fed by a mill race is shown powering via a gear train two frame saws cutting rectangular blocks by the way of connecting rods and, through mechanical necessity, cranks (see diagram). The accompanying inscription is in Greek and attributes the mechanism to Ammianos' "skills with wheels".

🔗 Physics

The Bohr–van Leeuwen theorem states that when statistical mechanics and classical mechanics are applied consistently, the thermal average of the magnetization is always zero. This makes magnetism in solids solely a quantum mechanical effect and means that classical physics cannot account for diamagnetism.

🔗 Comics

"Cow tools" is a cartoon from The Far Side by American cartoonist Gary Larson, published in October 1982. It depicts a cow standing behind a table of bizarre, misshapen implements with the caption "cow tools". The cartoon confused many readers, who wrote or phoned in seeking an explanation of the joke. In response to the controversy, Larson issued a press release clarifying that the thrust of the cartoon was simply that, if a cow were to make tools, they would "lack something in sophistication". It has been described as "arguably the most loathed Far Side strip ever" while also becoming a popular internet meme.