Popular Articles (Page 28)
Hint: You are looking at the most popular articles. If you are interested in popular topics instead, click here.
🔗 Idaho Stop
The Idaho stop is the common name for laws that allow cyclists to treat a stop sign as a yield sign, and a red light as a stop sign. It first became law in Idaho in 1982, but was not adopted elsewhere until Delaware adopted a limited stop-as-yield law, the "Delaware Yield", in 2017. Arkansas was the second state to legalize both stop-as-yield and red light-as-stop in April 2019. Studies in Delaware and Idaho have shown significant decreases in crashes at stop-controlled intersections.
Discussed on
- "Idaho Stop" | 2022-11-05 | 131 Upvotes 293 Comments
🔗 Epiousios
Epiousios (ἐπιούσιος) is a Greek adjective used in the Lord's Prayer verse "Τὸν ἄρτον ἡμῶν τὸν ἐπιούσιον δὸς ἡμῖν σήμερον" 'Give us today our epiousion bread'. Because the word is used nowhere else, its meaning is unclear. It is traditionally translated as "daily", but most modern scholars reject that interpretation.
Since it is a Koine Greek dis legomenon found only in the New Testament passages Matthew 6:11 and Luke 11:3, its interpretation relies upon morphological analysis and context. The traditional and most common English translation is daily, although most scholars today reject this in part because all other New Testament passages with the translation "daily" include the word hemera (ἡμέρᾱ, 'day').
The difficulty in understanding epiousios goes at least as far back as AD 382. At that time, St. Jerome was commissioned by Pope Damasus I to renew and consolidate the various collections of biblical texts in the Vetus Latina ("Old Latin") then in use by the Church. Jerome accomplished this by going back to the original Greek of the New Testament and translating it into Latin; his translation came to be known as the Vulgate. In the identical contexts of Matthew and Luke—that is, reporting the Lord's Prayer—Jerome translated epiousios in two different ways: by morphological analysis as 'supersubstantial' (supersubstantialem) in Matthew 6:11, but retaining 'daily' (quotidianum) in Luke 11:3.
The modern Catholic Catechism holds that there are several ways of understanding epiousios, including the traditional 'daily', but most literally as 'supersubstantial' or 'superessential', based on its morphological components. Alternative theories are that—aside from the etymology of ousia, meaning 'substance'—it may be derived from either of the verbs einai (εἶναι), meaning "to be", or ienai (ἰέναι), meaning both "to come" and "to go".:172
Discussed on
- "Epiousios" | 2021-09-13 | 538 Upvotes 201 Comments
🔗 HTTP 451 Unavailable for Legal Reasons
In computer networking, HTTP 451 Unavailable For Legal Reasons is an error status code of the HTTP protocol to be displayed when the user requests a resource which cannot be served for legal reasons, such as a web page censored by a government. The number 451 is a reference to Ray Bradbury's 1953 dystopian novel Fahrenheit 451, in which books are outlawed. 451 intends to provide more information than 403 Forbidden, which is often used for the same purpose. This status code is standardized in RFC 7725.
Examples of situations where an HTTP 451 error code could be displayed include web pages deemed a danger to national security, or web pages deemed to violate copyright, privacy, blasphemy laws, or any other law or court order.
The RFC is specific that a 451 response does not indicate whether the resource exists but requests for it have been blocked, if the resource has been removed for legal reasons and no longer exists, or even if the resource has never existed, but any discussion of its topic has been legally forbidden (see superinjunction). Some sites have previously returned HTTP 404 (Not Found) or similar if they are not legally permitted to disclose that the resource has been removed. Such a tactic is used in the United Kingdom by some internet service providers utilising the Internet Watch Foundation blacklist, returning a 404 message or another error message instead of showing a message indicating the site is blocked.
The status code was formally proposed in 2013 by Tim Bray, following earlier informal proposals by Chris Applegate in 2008 and Terence Eden in 2012. It was approved by the IESG on December 18, 2015. It was published as RFC 7725 in February 2016.
HTTP 451 was mentioned by the BBC's From Our Own Correspondent program, as an indication of the effects of sanctions on Sudan and the inability to access Airbnb, iOS's App Store, or other Western web services.
After introduction of the GDPR in European Economic Area (EEA) many websites located outside EEA started to serve HTTP 451 instead of trying to comply with this new privacy law.
Discussed on
- "HTTP 451 Unavailable for Legal Reasons" | 2019-10-25 | 72 Upvotes 18 Comments
- "HTTP 451 Unavailable for Legal Reasons" | 2019-03-22 | 18 Upvotes 2 Comments
- "HTTP 451: Unavailable for Legal Reasons" | 2017-01-26 | 10 Upvotes 1 Comments
🔗 Rue de L'Avenir
The Rue de l'Avenir (transl. Street of the future) was an electric moving walkway installed at the 1900 Exposition Universelle in Paris. It ran along the edge of the Exposition site, from the Esplanade of Les Invalides to the Champ de Mars, passing through nine stations along the way, where passengers could board. It was designed by architect Joseph Lyman Silsbee and engineer Max E. Schmidt, designers of The Great Wharf Moving Sidewalk installed at the 1893 World's Fair in Chicago, the first-ever moving walkway.
Discussed on
- "Rue de L'Avenir" | 2024-01-05 | 295 Upvotes 118 Comments
🔗 Wikipedia-grounded chatbot “outperforms all baselines” on factual accuracy
Discussed on
- "Wikipedia-grounded chatbot “outperforms all baselines” on factual accuracy" | 2023-07-17 | 233 Upvotes 177 Comments
🔗 Larry (Cat)
Larry (born c. January 2007) is a British domestic tabby cat who has served as Chief Mouser to the Cabinet Office at 10 Downing Street since 2011. He is cared for by Downing Street staff, and is not the personal property of the prime minister of the United Kingdom. Larry has lived at 10 Downing Street during the premierships of six prime ministers: David Cameron, Theresa May, Boris Johnson, Liz Truss, Rishi Sunak and Keir Starmer. He is the first cat to be officially given the title of Chief Mouser, according to the Downing Street government website.
Discussed on
- "Larry (Cat)" | 2025-07-04 | 333 Upvotes 74 Comments
🔗 Xv6
xv6 is a modern reimplementation of Sixth Edition Unix in ANSI C for multiprocessor x86 and RISC-V systems. It is used for pedagogical purposes in MIT's Operating Systems Engineering (6.828) course as well as Georgia Tech's (CS 3210) Design of Operating Systems Course, IIIT Hyderabad, IIIT Delhi and as well as many other institutions.
Discussed on
- "Xv6" | 2015-11-14 | 350 Upvotes 47 Comments
🔗 Unsolved Problems in Economics
This is a list of some of the major unsolved problems, puzzles, or questions in economics. Some of these are theoretical in origin and some of them concern the inability of orthodox economic theory to explain an empirical observation.
Discussed on
- "Unsolved Problems in Economics" | 2022-05-17 | 157 Upvotes 237 Comments
🔗 Mondragon Corporation
The Mondragon Corporation is a corporation and federation of worker cooperatives based in the Basque region of Spain. It was founded in the town of Mondragon in 1956 by graduates of a local technical college. Its first product was paraffin heaters. It is the tenth-largest Spanish company in terms of asset turnover and the leading business group in the Basque Country. At the end of 2014, it employed 74,117 people in 257 companies and organizations in four areas of activity: finance, industry, retail and knowledge. By 2015, 74,335 people were employed. Mondragon cooperatives operate in accordance with the Statement on the Co-operative Identity maintained by the International Co-operative Alliance.
Discussed on
- "Mondragon Corporation" | 2020-02-10 | 442 Upvotes 283 Comments
🔗 Antikythera Mechanism
The Antikythera mechanism (, ) is an ancient hand powered Greek analogue computer which has also been described as the first example of such device used to predict astronomical positions and eclipses for calendar and astrological purposes decades in advance. It could also be used to track the four-year cycle of athletic games which was similar to an Olympiad, the cycle of the ancient Olympic Games.
This artefact was retrieved from the sea in 1901, and identified on 17 May 1902 as containing a gear by archaeologist Valerios Stais, among wreckage retrieved from a shipwreck off the coast of the Greek island Antikythera. The instrument is believed to have been designed and constructed by Greek scientists and has been variously dated to about 87 BC, or between 150 and 100 BC, or to 205 BC, or to within a generation before the shipwreck, which has been dated to approximately 70–60 BC.
The device, housed in the remains of a 34 cm × 18 cm × 9 cm (13.4 in × 7.1 in × 3.5 in) wooden box, was found as one lump, later separated into three main fragments which are now divided into 82 separate fragments after conservation efforts. Four of these fragments contain gears, while inscriptions are found on many others. The largest gear is approximately 14 centimetres (5.5 in) in diameter and originally had 223 teeth.
It is a complex clockwork mechanism composed of at least 30 meshing bronze gears. A team led by Mike Edmunds and Tony Freeth at Cardiff University used modern computer x-ray tomography and high resolution surface scanning to image inside fragments of the crust-encased mechanism and read the faintest inscriptions that once covered the outer casing of the machine.
Detailed imaging of the mechanism suggests that it had 37 gear wheels enabling it to follow the movements of the Moon and the Sun through the zodiac, to predict eclipses and even to model the irregular orbit of the Moon, where the Moon's velocity is higher in its perigee than in its apogee. This motion was studied in the 2nd century BC by astronomer Hipparchus of Rhodes, and it is speculated that he may have been consulted in the machine's construction.
The knowledge of this technology was lost at some point in antiquity. Similar technological works later appeared in the medieval Byzantine and Islamic worlds, but works with similar complexity did not appear again until the development of mechanical astronomical clocks in Europe in the fourteenth century. All known fragments of the Antikythera mechanism are now kept at the National Archaeological Museum in Athens, along with a number of artistic reconstructions and replicas of the mechanism to demonstrate how it may have looked and worked.
Discussed on
- "The Antikythera Mechanism" | 2023-12-05 | 16 Upvotes 7 Comments
- "The Antikythera Mechanism" | 2021-07-22 | 23 Upvotes 3 Comments
- "Antikythera Mechanism" | 2019-07-27 | 83 Upvotes 35 Comments