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π Joy (Programming Language)
The Joy programming language in computer science is a purely functional programming language that was produced by Manfred von Thun of La Trobe University in Melbourne, Australia. Joy is based on composition of functions rather than lambda calculus. It has turned out to have many similarities to Forth, due not to design but to a sort of parallel evolution and convergence. It was also inspired by the function-level programming style of John Backus's FP.
Discussed on
- "Joy (Programming Language)" | 2020-05-02 | 98 Upvotes 42 Comments
π OFFSystem
The Owner-Free File System (OFF System, or OFF for short) is a peer-to-peer distributed file system in which all shared files are represented by randomized multi-used data blocks. Instead of anonymizing the network, the data blocks are anonymized and therefore, only data garbage is ever exchanged and stored and no forwarding via intermediate nodes is required. OFF claims to have been created with the expressed intention "to cut off some gangrene-infested bits of the copyright industry."
Discussed on
- "OFFSystem" | 2020-05-01 | 127 Upvotes 93 Comments
π Volkswagen Currywurst
Volkswagen currywurst is a brand of sausage manufactured by the Volkswagen car maker since 1973. It is manufactured at the company's Wolfsburg plant and sold in restaurants in its six German factories. The currywurst are also sold externally at supermarkets and football stadiums and given away to Volkswagen customers. The sausage is branded as a "Volkswagen Original Part" and has been given the part number 199 398 500 A. The product has been described as the most produced of any of Volkswagen's parts, some 6.81 million sausages being manufactured in 2018. In many recent years the company has produced more sausages than cars. A Volkswagen ketchup is also produced and sold to accompany the currywurst.
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- "Volkswagen Currywurst" | 2021-09-24 | 32 Upvotes 4 Comments
- "Volkswagen Currywurst" | 2020-04-28 | 57 Upvotes 18 Comments
π Operation Popeye
Operation Popeye (Project Controlled Weather Popeye / Motorpool / Intermediary-Compatriot) was a highly classified weather modification program in Southeast Asia during 1967β1972. The cloud seeding operation during the Vietnam War ran from March 20, 1967 until July 5, 1972 in an attempt to extend the monsoon season, specifically over areas of the Ho Chi Minh Trail. The operation was used to induce rain and extend the East Asian Monsoon season in support of U.S. government efforts related to the War in Southeast Asia.
The former U.S. Secretary of Defense, Robert S. McNamara, was aware that there might be objections raised by the international scientific community but said in a memo to the president that such objections had not in the past been a basis for prevention of military activities considered to be in the interests of U.S. national security.
The chemical weather modification program was conducted from Thailand over Cambodia, Laos, and Vietnam and allegedly sponsored by Secretary of State Henry Kissinger and CIA without the authorization of then Secretary of Defense Melvin Laird who had categorically denied to Congress that a program for modification of the weather for use as a tactical weapon even existed.
Discussed on
- "Operation Popeye" | 2020-04-28 | 69 Upvotes 17 Comments
π 0.999...= 1
In mathematics, 0.999... (also written as 0.9, among other ways) denotes the repeating decimal consisting of infinitely many 9s after the decimal point (and one 0 before it). This repeating decimal represents the smallest number no less than every decimal number in the sequence (0.9, 0.99, 0.999, ...). This number is equal to 1. In other words, "0.999..." and "1" represent the same number. There are many ways of showing this equality, from intuitive arguments to mathematically rigorous proofs. The technique used depends on the target audience, background assumptions, historical context, and preferred development of the real numbers, the system within which 0.999... is commonly defined. (In other systems, 0.999... can have the same meaning, a different definition, or be undefined.)
More generally, every nonzero terminating decimal has two equal representations (for example, 8.32 and 8.31999...), which is a property of all base representations. The utilitarian preference for the terminating decimal representation contributes to the misconception that it is the only representation. For this and other reasonsβsuch as rigorous proofs relying on non-elementary techniques, properties, or disciplinesβsome people can find the equality sufficiently counterintuitive that they question or reject it. This has been the subject of several studies in mathematics education.
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- "0.999...= 1" | 2020-04-28 | 218 Upvotes 626 Comments
π Foucault pendulum
The Foucault pendulum or Foucault's pendulum is a simple device named after French physicist LΓ©on Foucault and conceived as an experiment to demonstrate the Earth's rotation. The pendulum was introduced in 1851 and was the first experiment to give simple, direct evidence of the earth's rotation. Foucault pendulums today are popular displays in science museums and universities.
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- "Foucault pendulum" | 2020-04-27 | 69 Upvotes 33 Comments
π Wi-Fi over Coax
Wi-Fi over Coax is a technology for extending and distributing Wi-Fi signals via coaxial cables. As an in-building wireless solution, Wi-Fi over Coax can make use of existing or new cabling with native impedance of 50 ohms shared by a Wi-Fi access point, cabling run, and antenna. Coaxial cables with characteristic impedance of 75 ohms, such as RG-6 cables used for in-building television distribution, can also be used by incorporating impedance converters. As part of a distributed antenna system, Wi-Fi over Coax can connect multiple floors of a home or office via power dividers and zoned antennas either passively or via amplifiers, potentially eliminating the need for multiple access points.
Discussed on
- "Wi-Fi over Coax" | 2020-04-27 | 185 Upvotes 142 Comments
π Biology and political orientation
A number of studies have found that biology can be linked with political orientation. This means that biology is a possible factor in political orientation but may also mean that the ideology a person identifies with changes a person's ability to perform certain tasks. Many of the studies linking biology to politics remain controversial and unreplicated, although the overall body of evidence is growing.
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- "Biology and political orientation" | 2020-04-27 | 17 Upvotes 4 Comments
π Lamest Edit Wars
Occasionally, even experienced Wikipedians lose their heads and devote every waking moment to edit warring over the most trivial thing, wasting time debating topics of no practical value, or wrestling over questions whose answers hold no practical consequence. This page documents our lamest examples. It isn't comprehensive or authoritative, but it serves as a showcase of situations where people lose sight of the big picture and obsessively expend huge amounts of energy fighting over something that, in the end, isn't really so important.
Edit warring is believed by some to be important, possibly due to the historical regularity and frequency of the occurrence of these wars. A careful and scholarly study of available archeological evidence has even suggested that edit wars may have recurred on a regular basis going back all the way to the beginning of recorded history, even before the advent of proper writing circa 2001 C.E. (see Wikipedia). In some earlier instances of edit warring, dating back from before the good old days, participants would simply utilize their swords and fight a battle, or later, their guns and fight a duel.
In modern times, physical combat has been outlawed and replaced by the careful inciting of personal attacks, strategic 3RR templating and canvassing, timely notices on WP:AN/I, and (in some cases) marking the changes as a minor edit. Truly, the revolutionary Wikipedia outlook has changed the way things get done. It has changed them from actually getting done to never getting done. On the other hand, nobody gets dispatched (so far!).
Discussed on
- "Lamest Edit Wars" | 2023-05-07 | 129 Upvotes 88 Comments
- "Wikipedia: Lamest Edit Wars" | 2023-03-13 | 19 Upvotes 3 Comments
- "Lamest Edit Wars" | 2020-04-27 | 441 Upvotes 318 Comments
π Magnetocapacitance
Magnetocapacitance is a property of some dielectric, insulating materials, and metalβinsulatorβmetal heterostructures that exhibit a change in the value of their capacitance when an external magnetic field is applied to them. Magnetocapacitance can be an intrinsic property of some dielectric materials, such as multiferroic compounds like BiMnO3, or can be a manifest of properties extrinsic to the dielectric but present in capacitance structures like Pd, Al2O3, and Al.
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- "Magnetocapacitance" | 2020-04-26 | 20 Upvotes 6 Comments