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π Sortition
In governance, sortition (also known as selection by lot, allotment, demarchy, or Stochocracy) is the selection of political officials as a random sample from a larger pool of candidates. Filling individual posts or, more usually in its modern applications, to fill collegiate chambers. The system intends to ensure that all competent and interested parties have an equal chance of holding public office. It also minimizes factionalism, since there would be no point making promises to win over key constituencies if one was to be chosen by lot, while elections, by contrast, foster it. In ancient Athenian democracy, sortition was the traditional and primary method for appointing political officials, and its use was regarded as a principal characteristic of democracy.
Today, sortition is commonly used to select prospective jurors in common law-based legal systems and is sometimes used in forming citizen groups with political advisory power (citizens' juries or citizens' assemblies).
Discussed on
- "Sortition" | 2022-10-14 | 12 Upvotes 1 Comments
- "Sortition" | 2020-06-01 | 189 Upvotes 116 Comments
- "Sortition" | 2015-11-11 | 108 Upvotes 62 Comments
π Lynn Conway Has Died
Lynn Ann Conway (January 2, 1938 - June 9, 2024) was an American computer scientist, electrical engineer and transgender activist.
She worked at IBM in the 1960s and invented generalized dynamic instruction handling, a key advance used in out-of-order execution, used by most modern computer processors to improve performance. She initiated the MeadβConway VLSI chip design revolution in very large scale integrated (VLSI) microchip design. That revolution spread rapidly through the research universities and computing industries during the 1980s, incubating an emerging electronic design automation industry, spawning the modern 'foundry' infrastructure for chip design and production, and triggering a rush of impactful high-tech startups in the 1980s and 1990s.
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- "Lynn Conway Has Died" | 2024-06-11 | 1667 Upvotes 328 Comments
π Swatch Internet Time
Swatch Internet Time (or .beat time) is a decimal time concept introduced in 1998 by the Swatch corporation as part of their marketing campaign for their line of "Beat" watches.
Instead of hours and minutes, the mean solar day is divided into 1000 parts called ".beats". Each .beat is equal to one decimal minute in the French Revolutionary decimal time system and lasts 1 minute and 26.4 seconds (86.4 seconds) in standard time. Times are notated as a 3-digit number out of 1000 after midnight. So, for example @248 would indicate a time 248 .beats after midnight representing β248β1000 of a day, just over 5 hours and 57 minutes.
There are no time zones in Swatch Internet Time; instead, the new time scale of Biel Meantime (BMT) is used, based on Swatch's headquarters in Biel, Switzerland and equivalent to Central European Time, West Africa Time, and UTC+01. Unlike civil time in Switzerland and many other countries, Swatch Internet Time does not observe daylight saving time.
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- "Swatch Internet Time" | 2024-04-14 | 61 Upvotes 39 Comments
- "Swatch Internet Time (1998)" | 2018-02-05 | 86 Upvotes 78 Comments
- "Swatch Internet Time" | 2014-01-12 | 103 Upvotes 96 Comments
- "Ask HN: Why did this idea of Internet Time not work?" | 2009-03-17 | 7 Upvotes 28 Comments
π Beverly Clock
The Beverly Clock is a clock situated in the 3rd floor lift foyer of the Department of Physics at the University of Otago, Dunedin, New Zealand. The clock is still running despite never having been manually wound since its construction in 1864 by Arthur Beverly.
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- "Beverly Clock" | 2024-01-22 | 29 Upvotes 7 Comments
- "The Beverly Clock" | 2021-12-27 | 177 Upvotes 49 Comments
- "Beverly Clock" | 2018-02-20 | 289 Upvotes 53 Comments
π Kkrieger β A 96KB first person shooter
.kkrieger (from Krieger, German for warrior) is a first-person shooter video game created by German demogroup .theprodukkt (a former subdivision of Farbrausch), which won first place in the 96k game competition at Breakpoint in April 2004. The game remains a beta version as of 2019.
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- ".kkrieger β An FPS game from 2004 in 96kb" | 2024-08-16 | 65 Upvotes 10 Comments
- ".kkrieger" | 2023-04-21 | 33 Upvotes 2 Comments
- ".kkrieger" | 2020-12-10 | 32 Upvotes 2 Comments
- "Kkrieger β A 96KB first person shooter" | 2017-05-24 | 227 Upvotes 75 Comments
π List of common misconceptions
This is a list of common misconceptions. Each entry is formatted as a correction; the misconceptions themselves are implied rather than stated. These entries are meant to be concise, but more detail can be found in the main subject articles.
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- "List of Common Misconceptions" | 2022-07-13 | 21 Upvotes 8 Comments
- "List of Common Misconceptions" | 2020-05-22 | 52 Upvotes 15 Comments
- "List of common misconceptions" | 2018-06-14 | 94 Upvotes 26 Comments
- "List of Common Misconceptions" | 2010-06-27 | 169 Upvotes 53 Comments
π The βOh-My-God Particleβ
The Oh-My-God particle was the highest-energy cosmic ray detected at the time (15 October 1991) by the Fly's Eye detector in Dugway Proving Ground, Utah, US. Its energy was estimated as (3.2Β±0.9)Γ1020Β eV, or 51Β J. This is 20 million times more energetic than the highest energy measured in electromagnetic radiation emitted by an extragalactic object and 1020 (100 quintillion) times the photon energy of visible light, equivalent to a 142-gram (5Β oz) baseball travelling at about 26Β m/s (94Β km/h; 58Β mph). Although higher energy cosmic rays have been detected since then, this particle's energy was unexpected, and called into question theories of that era about the origin and propagation of cosmic rays.
Assuming it was a proton, this particle traveled at 99.99999999999999999999951% of the speed of light, its Lorentz factor was 3.2Γ1011 and its rapidity was 27.1. At this speed, if a photon were travelling with the particle, it would take over 215,000 years for the photon to gain a 1Β cm lead as seen in Earth's reference frame.
The energy of this particle is some 40 million times that of the highest energy protons that have been produced in any terrestrial particle accelerator. However, only a small fraction of this energy would be available for an interaction with a proton or neutron on Earth, with most of the energy remaining in the form of kinetic energy of the products of the interaction. The effective energy available for such a collision is β2Emc2, where E is the particle's energy and mc2 is the mass energy of the proton. For the Oh-My-God particle, this gives 7.5Γ1014Β eV, roughly 60 times the collision energy of the Large Hadron Collider.
While the particle's energy was higher than anything achieved in terrestrial accelerators, it was still about 40 million times lower than the Planck energy. Particles of such energy would be required in order to explore the Planck scale. A proton with that much energy would travel 1.665Γ1015 times closer to the speed of light than the Oh-My-God particle. As viewed from Earth it would take about 3.579Γ1020Β years, or 2.59Γ1010 times the current age of the universe, for a photon to gain a 1 cm lead over a Planck energy proton as observed in Earth's reference frame.
Since the first observation, at least 72 similar (energy > 5.7Γ1019Β eV) events have been recorded, confirming the phenomenon. These ultra-high-energy cosmic ray particles are very rare; the energy of most cosmic ray particles is between 10Β MeV and 10Β GeV. More recent studies using the Telescope Array have suggested a source for the particles within a 20-degree radius "warm spot" in the direction of the constellation Ursa Major.
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- "Oh-My-God Particle" | 2023-10-06 | 69 Upvotes 52 Comments
- "The βOh-My-God Particleβ" | 2018-02-27 | 118 Upvotes 71 Comments
- "Oh-My-God particle" | 2014-05-07 | 165 Upvotes 41 Comments
π Inverted totalitarianism
The political philosopher Sheldon Wolin coined the term inverted totalitarianism in 2003 to describe what he saw as the emerging form of government of the United States. Wolin analysed the United States as increasingly turning into a managed democracy (similar to an illiberal democracy). He uses the term "inverted totalitarianism" to draw attention to the totalitarian aspects of the American political system while emphasizing its differences from proper totalitarianism, such as Nazi and Stalinist regimes.
The book Days of Destruction, Days of Revolt (2012) by Chris Hedges and Joe Sacco portrays inverted totalitarianism as a system where corporations have corrupted and subverted democracy and where economics bests politics. Every natural resource and living being is commodified and exploited by large corporations to the point of collapse as excess consumerism and sensationalism lull and manipulate the citizenry into surrendering their liberties and their participation in government.
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- "Inverted Totalitarianism" | 2023-11-12 | 11 Upvotes 3 Comments
- "Inverted Totalitarianism" | 2021-08-26 | 33 Upvotes 3 Comments
- "Inverted totalitarianism" | 2013-12-14 | 240 Upvotes 158 Comments
- "Inverted Totalitarianism" | 2013-12-02 | 20 Upvotes 5 Comments
π Black Perl
"Black Perl" is a code poem written using the Perl programming language. It was posted anonymously to Usenet on April 1, 1990, and is popular among Perl programmers as a piece of Perl poetry. Written in Perl 3, the poem is able to be executed as a program.
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- "Black Perl" | 2013-09-12 | 330 Upvotes 67 Comments
- "Black Perl" | 2010-01-30 | 124 Upvotes 40 Comments
π White Coke
White Coke (Russian: ΠΠ΅ΡΡΠ²Π΅ΡΠ½Π°Ρ ΠΊΠΎΠΊΠ°-ΠΊΠΎΠ»Π°, tr. Bestsvetnaya koka-kola, lit. "colorless Coca-Cola") is a nickname for a clear variant of Coca-Cola produced in the 1940s at the request of Marshal of the Soviet Union Georgy Zhukov. Like other clear colas, it was of the same original flavor, virtually unchanged by the absence of caramel coloring.
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- "White Coke" | 2015-11-26 | 103 Upvotes 24 Comments
- "White Coke" | 2013-07-17 | 478 Upvotes 236 Comments