Have a deep view into what people are curious about.

🔗 Video games 🔗 Science Fiction

The Battle of B-R5RB or the Bloodbath of B-R5RB ( (listen)) was a massive-scale virtual battle fought in the MMORPG space game EVE Online in January 2014 (YC 116 in-game), possibly the largest player-versus-player battle in history at the time. The 21-hour-long conflict pitted the Clusterfuck Coalition and Russian alliances (CFC/Rus) against the N3 and Pandemic Legion (N3/PL), and involved over 7,548 player characters with a maximum of 2,670 players in the B-R5RB system at one time. The in-game cost of the losses totalled over 11 trillion Interstellar Kredit (ISK), an estimated theoretical real-world value of $300,000 to $330,000 USD derived from the value of PLEX, an item purchasable with real currency that can be redeemed either for subscription time or traded for in-game currency.

Part of a larger conflict known as the Halloween War, the fight started after a single player controlling a space station in the N3/PL-controlled star system B-R5RB accidentally failed to make a scheduled in-game routine maintenance payment, which made the star system open to capture. Being a key staging area used by N3/PL in the war, the CFC and Russian coalitions began pouring players into the system in a swift offensive, and N3/PL moved in a large fleet of players as a response as well. A massive battle erupted in the system, and numerous smaller engagements occurred throughout the game universe as players attempted to block reinforcements from joining the battle. CFC/Rus gained a clear win by inflicting heavy losses on N3/PL and successfully capturing B-R5RB. The losses totalled 576 capital ships including 75 Titans (the largest ships available to players), along with thousands of smaller vessels.

To commemorate the sheer size and cost of the battle, the game's creators, CCP Games, erected a permanent monument in the system B-R5RB named "The Titanomachy", consisting of non-salvageable capital ship wrecks.

🔗 United States 🔗 Donald Trump 🔗 Taiwan

The Trump–Tsai call was a telephone conversation between the U.S President-elect Donald Trump and the President of Taiwan Tsai Ing-wen which took place on December 2, 2016. This event marked the first time since 1979 that a U.S. president or President-elect had directly spoken with a ROC President. In the call, Tsai congratulated Trump for his victory in the presidential election. The two leaders spoke for around 10 minutes, focusing on politics, economy, and security in Asia-Pacific. Following the call, Trump publicized this on Twitter and Facebook and said thank you to "the President of Taiwan". After Trump's transition team confirmed the event, the Presidential Office of Taiwan released a statement about the content of the call.

Several prominent Republicans praised the call between the two leaders, saying that the United States needs no more pressure from the government of the People's Republic of China (commonly called "China"), which does not recognize the ROC government and claims Taiwan is part of its territory. Some commentators from U.S. media outlets said that the call humiliated Beijing as it seemed a violation of a diplomatic practice. Other media and comments criticized the One-China policy, saying that Trump's move was morally right and strategically correct for American interests. Wang Yi, the Foreign Minister of the People's Republic of China subsequently responded that this event is only a "small trick" played by Taiwan and will not change the One-China Policy. A spokesperson for the Presidential Office in Taipei expressed that there is no conflict between the Cross-Strait relations and the Taiwan–U.S. relations. The Obama administration stated that the U.S. would uphold the One-China Policy. Trump later responded by saying that the U.S. did not have to follow that policy.

🔗 Computer science

In computer science, Linda is a model of coordination and communication among several parallel processes operating upon objects stored in and retrieved from shared, virtual, associative memory. It was developed by Sudhir Ahuja at AT&T Bell Laboratories in collaboration with David Gelernter and Nicholas Carriero at Yale University in 1986.

🔗 Philosophy 🔗 Philosophy/Contemporary philosophy 🔗 Philosophy/Ethics

The trolley problem is a thought experiment in ethics. It is generally considered to represent a classic clash between two schools of moral thought, utilitarianism and deontological ethics. The general form of the problem is this:

There is a runaway trolley barreling down the railway tracks. Ahead, on the tracks, there are five people tied up and unable to move. The trolley is headed straight for them. You are standing some distance off in the train yard, next to a lever. If you pull this lever, the trolley will switch to a different set of tracks. However, you notice that there is one person on the side track. You have two options:

1. Do nothing and allow the trolley to kill the five people on the main track.
2. Pull the lever, diverting the trolley onto the side track where it will kill one person.

Which is the more ethical option? Or, more simply: What is the right thing to do?

Philippa Foot introduced this modern form of the problem in 1967. Judith Thomson, Frances Kamm, and Peter Unger have also analysed the dilemma extensively.

Earlier forms of the problem predated Foot's publication. Frank Chapman Sharp included a version in a moral questionnaire given to undergraduates at the University of Wisconsin in 1905. In this variation, the railway's switchman controlled the switch, and the lone individual to be sacrificed (or not) was the switchman's child. The German legal scholar Hans Welzel discussed a similar problem in 1951. In his commentary on the Talmud, published long before his death in 1953, Avrohom Yeshaya Karelitz discussed the similar question of whether it is ethical to deflect a projectile from a larger crowd toward a smaller one.

Beginning in 2001, the trolley problem and its variants have been used extensively in empirical research on moral psychology. Trolley problems have also been a topic of popular books. The problem arises in discussing the ethics of autonomous vehicle design, which may require programming to choose whom or what to strike when a collision appears to be unavoidable.

🔗 Automobiles

The Ford Nucleon is a concept car developed by Ford in 1957 designed as a future nuclear-powered car, one of a handful of such designs during the 1950s and '60s. The concept was only demonstrated as a scale model. The design did not include an internal-combustion engine; rather, the vehicle was to be powered by a small nuclear reactor in the rear of the vehicle, based on the assumption that this would one day be possible by reducing sizes. The car was to use a steam engine powered by uranium fission similar to those found in nuclear submarines.

The mock-up of the car can be viewed at the Henry Ford Museum in Dearborn, Michigan.

🔗 Film 🔗 Military history 🔗 Film/American cinema 🔗 Science Fiction 🔗 Military history/Cold War 🔗 Cold War 🔗 Military history/War films

Colossus: The Forbin Project (originally released as Colossus) is a 1970 American science-fiction thriller film from Universal Pictures, produced by Stanley Chase, directed by Joseph Sargent, and starring Eric Braeden, Susan Clark, Gordon Pinsent, and William Schallert. It is based on the 1966 science-fiction novel Colossus by Dennis Feltham Jones.

The film is about an advanced American defense system, named Colossus, which becomes sentient. After being given full control, Colossus' draconian logic expands on its original nuclear defense directives to assume total control of the world and end all warfare for the good of humankind, despite its creators' orders to stop.

🔗 Mathematics 🔗 Lists

The mathematical statements discussed below are provably independent of ZFC (the canonical axiomatic set theory of contemporary mathematics, consisting of the Zermelo–Fraenkel axioms plus the axiom of choice), assuming that ZFC is consistent. A statement is independent of ZFC (sometimes phrased "undecidable in ZFC") if it can neither be proven nor disproven from the axioms of ZFC.

🔗 Physics

The quantum Zeno effect (also known as the Turing paradox) is a feature of quantum-mechanical systems allowing a particle's time evolution to be slowed down by measuring it frequently enough with respect to some chosen measurement setting.

Sometimes this effect is interpreted as "a system cannot change while you are watching it". One can "freeze" the evolution of the system by measuring it frequently enough in its known initial state. The meaning of the term has since expanded, leading to a more technical definition, in which time evolution can be suppressed not only by measurement: the quantum Zeno effect is the suppression of unitary time evolution in quantum systems provided by a variety of sources: measurement, interactions with the environment, stochastic fields, among other factors. As an outgrowth of study of the quantum Zeno effect, it has become clear that applying a series of sufficiently strong and fast pulses with appropriate symmetry can also decouple a system from its decohering environment.

The name comes from Zeno's arrow paradox, which states that because an arrow in flight is not seen to move during any single instant, it cannot possibly be moving at all. The first rigorous and general derivation of the quantum Zeno effect was presented in 1974 by Degasperis, Fonda, and Ghirardi, although it had previously been described by Alan Turing. The comparison with Zeno's paradox is due to a 1977 article by George Sudarshan and Baidyanath Misra.

According to the reduction postulate, each measurement causes the wavefunction to collapse to an eigenstate of the measurement basis. In the context of this effect, an observation can simply be the absorption of a particle, without the need of an observer in any conventional sense. However, there is controversy over the interpretation of the effect, sometimes referred to as the "measurement problem" in traversing the interface between microscopic and macroscopic objects.

Another crucial problem related to the effect is strictly connected to the time–energy indeterminacy relation (part of the indeterminacy principle). If one wants to make the measurement process more and more frequent, one has to correspondingly decrease the time duration of the measurement itself. But the request that the measurement last only a very short time implies that the energy spread of the state in which reduction occurs becomes increasingly large. However, the deviations from the exponential decay law for small times is crucially related to the inverse of the energy spread, so that the region in which the deviations are appreciable shrinks when one makes the measurement process duration shorter and shorter. An explicit evaluation of these two competing requests shows that it is inappropriate, without taking into account this basic fact, to deal with the actual occurrence and emergence of Zeno's effect.

Closely related (and sometimes not distinguished from the quantum Zeno effect) is the watchdog effect, in which the time evolution of a system is affected by its continuous coupling to the environment.

🔗 Genetics 🔗 Molecular Biology/Molecular and Cell Biology

In genetic engineering, a gene gun or biolistic particle delivery system is a device used to deliver exogenous DNA (transgenes), RNA, or protein to cells. By coating particles of a heavy metal with a gene of interest and firing these micro-projectiles into cells using mechanical force, an integration of desired genetic information can be induced into cells. The technique involved with such micro-projectile delivery of DNA is often referred to as biolistics.

This device is able to transform almost any type of cell and is not limited to the transformation of the nucleus; it can also transform organelles, including plastids and mitochondria.

🔗 Archaeology 🔗 Museums 🔗 Merseyside

The Williamson Tunnels are a series of extensive subterranean excavations, of unknown purpose, in the Edge Hill area of Liverpool, England. They are thought to have been created under the direction of tobacco merchant, landowner and philanthropist Joseph Williamson between 1810 and 1840. Although popularly described as "tunnels", the majority comprise brick or stone vaulting over excavations in the underlying sandstone. The purpose of the works remains unclear and remains a subject of heavy speculation; suggestions include commercial quarrying, a philanthropic desire to provide employment, and Williamson's own eccentric interests.

After being gradually infilled with rubble and spoil during the late 19th and early 20th centuries, they remained largely inaccessible until archaeological investigations were carried out in 1995. Since then volunteers have rediscovered and excavated an extensive network of tunnels, chambers and voids across several sites, with sections open to the public. Guided tours are available at the Williamson Tunnels Heritage Centre and the Friends Of Williamson's Tunnels, and excavation continues as volunteers continue to uncover new sections.