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๐ Mount of piety
A mount of piety is an institutional pawnbroker run as a charity in Europe from Renaissance times until today. Similar institutions were established in the colonies of Catholic countries; the Mexican Nacional Monte de Piedad is still in operation.
The institution originated in Italy in the fifteenth century, where it gave poor people access to loans with reasonable interest rates. It used funds from charitable donors as capital, and made loans to the poor so they could avoid going to exploitative lenders. Borrowers offered valuables as collateral, making the mount of piety more like a pawn shop than a bank.
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- "Mount of piety" | 2021-07-17 | 62 Upvotes 9 Comments
๐ Viterbi Algorithm
The Viterbi algorithm is a dynamic programming algorithm for obtaining the maximum a posteriori probability estimate of the most likely sequence of hidden statesโcalled the Viterbi pathโthat results in a sequence of observed events, especially in the context of Markov information sources and hidden Markov models (HMM).
The algorithm has found universal application in decoding the convolutional codes used in both CDMA and GSM digital cellular, dial-up modems, satellite, deep-space communications, and 802.11 wireless LANs. It is now also commonly used in speech recognition, speech synthesis, diarization, keyword spotting, computational linguistics, and bioinformatics. For example, in speech-to-text (speech recognition), the acoustic signal is treated as the observed sequence of events, and a string of text is considered to be the "hidden cause" of the acoustic signal. The Viterbi algorithm finds the most likely string of text given the acoustic signal.
๐ Woo! Yeah!
Woo! Yeah! is a drum break that includes James Brown's ("Woo!") and Bobby Byrd's ("Yeah!") voices which has been widely sampled in popular music, often in the form of a loop. The drum break was performed by John "Jabo" Starks. It originates from the 1972 Lyn Collins recording "Think (About It)", a song written and produced by Brown, and is just one of a few other frequently used breaks contained in the recording, often collectively known as the Think Break.
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- "Woo! Yeah!" | 2021-07-16 | 16 Upvotes 3 Comments
๐ 112 Gripes About the French
112 Gripes About the French was a 1945 handbook issued by the United States military authorities to enlisted personnel arriving in France after the Liberation. It was meant to defuse the growing tension between the American military and the locals.
The euphoria of victory over Germany was short-lived, and within months of Liberation, tensions began to rise between the French and the U.S. military personnel stationed in the country, with the former seeing the latter as arrogant and wanting to flaunt their wealth, and the latter seeing the former as proud and resentful. Fights were breaking out more often, and fears were raised, even among high officials, that the situation might eventually lead to a breakdown of civil order.
Set out in a question-and-answer format, 112 Gripes about the French posed a series of well-rehearsed complaints about the French, and then provided a common-sense rejoinder to each of them โ the aim of the authors being to bring the average American soldier to a fuller understanding of his hosts.
It has recently been republished in the United States (ISBNย 1-4191-6512-7), and in France under the title "Nos amis les Franรงais" ("Our friends the French"), ISBNย 2-7491-0128-X.
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- "112 Gripes About the French" | 2021-07-16 | 408 Upvotes 339 Comments
๐ Mathematical Coincidence
A mathematical coincidence is said to occur when two expressions with no direct relationship show a near-equality which has no apparent theoretical explanation.
For example, there is a near-equality close to the round number 1000 between powers of 2 and powers of 10:
Some mathematical coincidences are used in engineering when one expression is taken as an approximation of another.
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- "Mathematical Coincidence" | 2021-07-15 | 12 Upvotes 8 Comments
๐ The Magical Number 7 plus or minus 2
"The Magical Number Seven, Plus or Minus Two: Some Limits on Our Capacity for Processing Information" is one of the most highly cited papers in psychology. It was published in 1956 in Psychological Review by the cognitive psychologist George A. Miller of Harvard University's Department of Psychology. It is often interpreted to argue that the number of objects an average human can hold in short-term memory is 7 ยฑ 2. This has occasionally been referred to as Miller's law.
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- "The Magical Number Seven, Plus or Minus Two" | 2021-07-14 | 48 Upvotes 11 Comments
- "The Magical Number 7 plus or minus 2" | 2010-11-08 | 21 Upvotes 9 Comments
๐ Depopulation of cockroaches in post-Soviet states
Depopulation of cockroaches in post-Soviet states refers to observations that there has been a rapid disappearance of various types of cockroaches since the beginning of the 21st century in Russia and other countries of the former USSR. Various factors have been suggested as causes of the depopulation.
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- "Depopulation of cockroaches in post-Soviet states" | 2021-07-14 | 11 Upvotes 2 Comments
๐ The Count of Monte Cristo is inspired by a real framing-revenge plot story
Pierre Picaud (French:ย [piko]) was a 19th-century shoemaker in Nรฎmes, France who may have been the basis for the character of Edmond Dantรจs in Alexandre Dumas, pรจre's 1844 novel The Count of Monte Cristo.
In 1807, Picaud was engaged to marry a rich woman, but three jealous friends โ Loupian, Solari, and Chaubart โ falsely accused him of being a spy for England (a fourth friend, Allut, knew of their conspiracy, but did not report it). He was imprisoned in the Fenestrelle fortress for seven years, not even learning why until his second year there. During his imprisonment he ground a small passageway into a neighboring cell and befriended a wealthy Italian priest named Father Torri who was also held in the fortress. A year later, a dying Torri bequeathed to Picaud a treasure he had hidden in Milan. When Picaud was released after the fall of the French Imperial government in 1814, he took possession of the treasure, returned under another name to Paris and spent 10 years plotting revenge against his former friends.
Picaud first murdered Chaubart or had him murdered. Picaud's former fiancรฉe had, two years after his disappearance, married his former friend Loupian, who became the subject of his most brutal revenge. Picaud tricked Loupian's daughter into marrying a criminal, whom he then had arrested. Loupian's daughter promptly died of shock. Picaud then burned down Loupian's restaurant, or arranged to have it burned down, leaving Loupian impoverished. Next, he fatally poisoned Solari and either manipulated Loupian's son into stealing some gold jewelry or framed him for committing the crime. The boy was sent to jail, and Picaud stabbed Loupian to death. He was himself then abducted by a vengeful Allut, who seriously injured Picaud while holding him captive. Picaud was eventually found by the French police, who recorded his confession before dying of his injuries. . Allut's deathbed confession forms the bulk of the French police records of the case. The detailed description of Picaud's experiences in prison, which could not have been known to Allut, were supposedly dictated to him by the ghost of Father Torri.
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- "The Count of Monte Cristo is inspired by a real framing-revenge plot story" | 2021-07-13 | 19 Upvotes 5 Comments
๐ Alternative 3
Alternative 3 is a television programme, broadcast once only in the United Kingdom in 1977, and later broadcast in Australia, Canada, and New Zealand, as a fictional hoax, an heir to Orson Welles' radio production of The War of the Worlds. Purporting to be an investigation into the UK's contemporary "brain drain", Alternative 3 uncovered a plan to make the Moon and Mars habitable in the event of climate change and a terminal environmental catastrophe on Earth.
The programme was originally meant to be broadcast on April Fools' Day, 1977. While its broadcast was delayed until 20 June, the credits explicitly date the film to 1 April. Alternative 3 ended with credits for the actors involved in the production and featured interviews with a fictitious American astronaut.
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- "Alternative 3" | 2021-07-12 | 37 Upvotes 13 Comments
๐ Royal Mail Rubber Band
A Royal Mail rubber band is a small red elastic loop used by the postal delivery service in the United Kingdom. In the course of its work, the Royal Mail consumes nearly one billion rubber bands per year to tie together bundles of letters at sorting offices. In the 2000s, complaints about Royal Mail rubber bands littering the streets of Britain gave rise to ongoing press interest in this minor cultural phenomenon. The Royal Mail no longer uses red rubber bands.
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- "Royal Mail Rubber Band" | 2021-07-11 | 87 Upvotes 57 Comments