Have a deep view into what people are curious about.

🔗 Technology 🔗 India 🔗 Metalworking

Wootz steel is a crucible steel characterized by a pattern of bands. These bands are formed by sheets of microscopic carbides within a tempered martensite or pearlite matrix in higher carbon steel, or by ferrite and pearlite banding in lower carbon steels. It was a pioneering steel alloy developed in Southern India (Tamilakam present day Tamil Nadu and Kerala) and Sri Lanka in the 6th century BC and exported globally. It was also known in the ancient world by many different names including ukku, Hindvi steel, Hinduwani steel, Teling steel and seric iron.

🔗 Military history 🔗 European history 🔗 Military history/Balkan military history 🔗 Organized crime 🔗 Albania 🔗 Military history/European military history 🔗 Military history/Post-Cold War

The Albanian Civil War was a period of civil disorder in Albania in 1997, sparked by pyramid scheme failures. The government was toppled and more than 2,000 people were killed. It is considered to be either a rebellion, a civil war, or a rebellion that escalated into a civil war.

By January 1997, Albanian citizens, who had lost a total of $1.2 billion (an average of $400 per person countrywide) took their protest to the streets. Beginning in February, thousands of citizens launched daily protests demanding reimbursement by the government, which they believed was profiting from the schemes. On 1 March, Prime Minister Aleksandër Meksi resigned and on 2 March, President Sali Berisha declared a state of emergency. On 11 March the Socialist Party of Albania won a major victory when its leader, Bashkim Fino, was appointed prime minister. However, the transfer of power did not halt the unrest, and protests spread to northern Albania. Although the government quelled revolts in the north, the ability of the government and military to maintain order began to collapse, especially in the southern half of Albania, which fell under the control of rebels and criminal gangs.

All major population centres were engulfed in demonstrations by 13 March and foreign countries began to evacuate their citizens. These evacuations included Operation Libelle, Operation Silver Wake and Operation Kosmas.. The United Nations Security Council, in Resolution 1101, authorised a force of 7,000 troops on 28 March to direct relief efforts and restore order in Albania. The UN feared the unrest would spread beyond Albania's borders and send refugees throughout Europe. On 15 April, Operation Alba was launched and helped restore rule of law in the country. After the unrest, looted weapons were made available to the Kosovo Liberation Army, many making their way to the Kosovo War (1998–99).

🔗 Astronomy 🔗 Moon 🔗 Solar System

A transient lunar phenomenon (TLP) or lunar transient phenomenon (LTP) is a short-lived light, color, or change in appearance on the surface of the Moon. The term was created by Patrick Moore in his co-authorship of NASA Technical Report R-277 Chronological Catalog of Reported Lunar Events, published in 1968.

Claims of short-lived lunar phenomena go back at least 1,000 years, with some having been observed independently by multiple witnesses or reputable scientists. Nevertheless, the majority of transient lunar phenomenon reports are irreproducible and do not possess adequate control experiments that could be used to distinguish among alternative hypotheses to explain their origins.

Most lunar scientists will acknowledge transient events such as outgassing and impact cratering do occur over geologic time. The controversy lies in the frequency of such events.

🔗 Animal anatomy 🔗 Neuroscience 🔗 Anatomy 🔗 Anatomy/Neuroanatomy

The enteric nervous system (ENS) or intrinsic nervous system is one of the main divisions of the autonomic nervous system (ANS) and consists of a mesh-like system of neurons that governs the function of the gastrointestinal tract. It is capable of acting independently of the sympathetic and parasympathetic nervous systems, although it may be influenced by them. The ENS is also called the second brain.It is derived from neural crest cells.

The enteric nervous system is capable of operating independently of the brain and spinal cord, but does rely on innervation from the autonomic nervous system via the vagus nerve and prevertebral ganglia in healthy subjects. However, studies have shown that the system is operable with a severed vagus nerve. The neurons of the enteric nervous system control the motor functions of the system, in addition to the secretion of gastrointestinal enzymes. These neurons communicate through many neurotransmitters similar to the CNS, including acetylcholine, dopamine, and serotonin. The large presence of serotonin and dopamine in the gut are key areas of research for neurogastroenterologists.

🔗 Law 🔗 Time

"Justice delayed is justice denied" is a legal maxim. It means that if legal redress or equitable relief to an injured party is available, but is not forthcoming in a timely fashion, it is effectively the same as having no remedy at all.

This principle is the basis for the right to a speedy trial and similar rights which are meant to expedite the legal system, because of the unfairness for the injured party who sustained the injury having little hope for timely and effective remedy and resolution. The phrase has become a rallying cry for legal reformers who view courts, tribunals, judges, arbitrators, administrative law judges, commissions or governments as acting too slowly in resolving legal issues — either because the case is too complex, the existing system is too complex or overburdened, or because the issue or party in question lacks political favour. Individual cases may be affected by judicial hesitancy to make a decision. Statutes and court rules have tried to control the tendency; and judges may be subject to oversight and even discipline for persistent failures to decide matters timely, or accurately report their backlog. When a court takes a matter "under advisement" – awaiting the issue of a judicial opinion, order or judgement and forestalls final adjudication of a lawsuit or resolution of a motion – the issue of timeliness of the decision(s) comes into play.

🔗 Cryptography 🔗 Cryptography/Computer science 🔗 Poland

The method of Zygalski sheets was a cryptologic technique used by the Polish Cipher Bureau before and during World War II, and during the war also by British cryptologists at Bletchley Park, to decrypt messages enciphered on German Enigma machines.

The Zygalski-sheet apparatus takes its name from Polish Cipher Bureau mathematician–cryptologist Henryk Zygalski, who invented it about October 1938.

🔗 Economics 🔗 Futures studies

Pessimism porn is a neologism coined in 2009 during the 2007–2012 global financial crisis to describe the alleged eschatological and survivalist thrill some people derive from predicting, reading and fantasizing about the collapse of civil society through the destruction of the world's economic system.

🔗 Books 🔗 Magic

The Expert at the Card Table, originally titled Artifice, Ruse and Subterfuge at the Card Table: A Treatise on the Science and Art of Manipulating Cards, often referred to simply as Erdnase, is an extensive book on the art of sleight of hand published in 1902 by S. W. Erdnase, a pseudonymous author whose identity has remained a mystery for over a century. As a detailed manual of card sharps, the book is considered to be one of the most influential works on magic or conjuring with cards.

The Expert at the Card Table is the most famous, the most carefully studied book ever published on the art of manipulating cards at gaming tables."

🔗 Economics 🔗 Game theory

A Vickrey–Clarke–Groves (VCG) auction is a type of sealed-bid auction of multiple items. Bidders submit bids that report their valuations for the items, without knowing the bids of the other bidders. The auction system assigns the items in a socially optimal manner: it charges each individual the harm they cause to other bidders. It gives bidders an incentive to bid their true valuations, by ensuring that the optimal strategy for each bidder is to bid their true valuations of the items. It is a generalization of a Vickrey auction for multiple items.

The auction is named after William Vickrey, Edward H. Clarke, and Theodore Groves for their papers that successively generalized the idea.

The VCG auction is a specific use of the more general VCG Mechanism. While the VCG auction tries to make a socially optimal allocation of items, VCG mechanisms allow for the selection of a socially optimal outcome out of a set of possible outcomes. If collusion is likely to occur among bidders, the VCG outperforms the generalized second-price auction for both revenues produced for the seller and allocative efficiency.

🔗 Energy

An energy slave is that quantity of energy (ability to do work) which, when used to construct and drive non-human infrastructure (machines, roads, power grids, fuel, draft animals, wind-driven pumps, etc.) replaces a unit of human labor (actual work). An energy slave does the work of a person, through the consumption of energy in the non-human infrastructure.