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π Gravity Hill
A gravity hill, also known as a magnetic hill, mystery hill, mystery spot, gravity road, or anti-gravity hill, is a place where the layout of the surrounding land produces an optical illusion, making a slight downhill slope appear to be an uphill slope. Thus, a car left out of gear will appear to be rolling uphill against gravity. There are hundreds of recognized gravity hills around the world.
The slope of gravity hills is an optical illusion, although sites are often accompanied by claims that magnetic or supernatural forces are at work. The most important factor contributing to the illusion is a completely or mostly obstructed horizon. Without a horizon, it becomes difficult to judge the slope of a surface as a reliable reference is missing. Objects which one would normally assume to be more or less perpendicular to the ground, such as trees, may actually be leaning, offsetting the visual reference.
A 2003 study looked into how the absence of a horizon can skew the perspective on gravity hills by recreating a number of antigravity places in the lab to see how volunteers would react. As a conclusion, researchers from Universities of Padova and Pavia in Italy found that without a true horizon in sight, landmarks such as trees and signs actually played these tricks on the human brain.
The illusion is similar to the Ames room, in which objects can also appear to roll against gravity.
The opposite phenomenonβan uphill road that appears flatβis known in bicycle racing as a "false flat".
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- "Gravity Hill" | 2022-03-19 | 102 Upvotes 33 Comments
π Extreme Ironing
Extreme ironing (also called EI) is an extreme sport in which people take ironing boards to remote locations and iron items of clothing. According to the Extreme Ironing Bureau, extreme ironing is "the latest danger sport that combines the thrills of an extreme outdoor activity with the satisfaction of a well-pressed shirt."
Part of the attraction and interest the media has shown towards extreme ironing seems to center on the issue of whether it is really a sport or not. It is widely considered to be tongue-in-cheek.
Some other locations where such performances have taken place include a mountainside of a difficult climb; a forest; in a canoe; while skiing or snowboarding; on top of large bronze statues; in the middle of a street; underwater; in the middle of the M1 motorway; race; whilst parachuting; and under the ice sheet of a frozen lake. The performances have been conducted solo or by groups.
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- "Extreme Ironing" | 2021-08-31 | 411 Upvotes 172 Comments
π The Opium of the Intellectuals
The Opium of the Intellectuals (French: L'Opium des intellectuels) is a book written by Raymond Aron and published in 1955. It was first published in an English translation in 1957.
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- "The Opium of the Intellectuals" | 2020-04-01 | 73 Upvotes 35 Comments
π Balance in game design
In game design, balance is the concept and the practice of tuning a game's rules, usually with the goal of preventing any of its component systems from being ineffective or otherwise undesirable when compared to their peers. An unbalanced system represents wasted development resources at the very least, and at worst can undermine the game's entire ruleset by making important roles or tasks impossible to perform.
π La Bougie Du Sapeur
La Bougie du Sapeur (French: [la bu.Κi dy sa.pΕΚ]) is a French satirical newspaper launched in 1980 that is published only on Leap Day, making it the world's least frequently published newspaper. The editor-in-chief is Jean d'Indy, who works for France Galop and has been involved in producing the paper since 1992.
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- "La Bougie Du Sapeur" | 2024-03-01 | 53 Upvotes 7 Comments
π Phantom Time Hypothesis
The phantom time hypothesis is a historical conspiracy theory asserted by Heribert Illig. First published in 1991, it hypothesizes a conspiracy by the Holy Roman Emperor Otto III, Pope Sylvester II, and possibly the Byzantine Emperor Constantine VII, to fabricate the Anno Domini dating system retrospectively, in order to place them at the special year of AD 1000, and to rewrite history to legitimize Otto's claim to the Holy Roman Empire. Illig believed that this was achieved through the alteration, misrepresentation and forgery of documentary and physical evidence. According to this scenario, the entire Carolingian period, including the figure of Charlemagne, is a fabrication, with a "phantom time" of 297 years (AD 614β911) added to the Early Middle Ages.
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- "Phantom Time Hypothesis" | 2016-02-02 | 54 Upvotes 31 Comments
π Bum Farto
Joseph "Bum" Farto (July 3, 1919 β February 16, 1976) was a fire chief and convicted drug dealer in Key West, Florida who disappeared in 1976.
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- "Bum Farto" | 2024-08-22 | 119 Upvotes 29 Comments
π The Unreality of Time
"The Unreality of Time" is the best-known philosophical work of the Cambridge idealist J.Β M.Β E. McTaggart (1866β1925). In the argument, first published as a journal article in Mind in 1908, McTaggart argues that time is unreal because our descriptions of time are either contradictory, circular, or insufficient. A slightly different version of the argument appeared in 1927 as one of the chapters in the second volume of McTaggart's greatest work, The Nature of Existence.
The argument for the unreality of time is popularly treated as a stand-alone argument that does not depend on any significant metaphysical principles (e.g. as argued by C.Β D. Broad 1933 and L.Β O. Mink 1960). R.Β D. Ingthorsson disputes this, and argues that the argument can only be understood as an attempt to draw out certain consequences of the metaphysical system that McTaggart presents in the first volume of The Nature of Existence (Ingthorsson 1998 & 2016).
It is helpful to consider the argument as consisting of three parts. In the first part, McTaggart offers a phenomenological analysis of the appearance of time, in terms of the now famous A- and B-series (see below for detail). In the second part, he argues that a conception of time as only forming a B-series but not an A-series is an inadequate conception of time because the B-series does not contain any notion of change. The A-series, on the other hand, appears to contain change and is thus more likely to be an adequate conception of time. In the third and final part, he argues that the conception of time forming an A-series is contradictory and thus nothing can be like an A-series. Since the A- and the B- series exhaust possible conceptions of how reality can be temporal, and neither is adequate, the conclusion McTaggart reaches is that reality is not temporal at all.
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- "The Unreality of Time" | 2015-07-16 | 39 Upvotes 48 Comments
π Erfurt Latrine Disaster of 1184
In July 1184, Henry VI, King of Germany (later Holy Roman Emperor), held court at a Hoftag in the Petersberg Citadel in Erfurt. On the morning of 26 July, the combined weight of the assembled nobles caused the wooden second story floor of the building to collapse and most of them fell through into the latrine cesspit below the ground floor, where about 60 of them drowned in liquid excrement. This event is called Erfurter Latrinensturz (lit.β'Erfurt latrine fall') in several German sources.
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- "Erfurt Latrine Disaster" | 2022-11-26 | 122 Upvotes 42 Comments
- "Erfurt Latrine Disaster of 1184" | 2022-11-09 | 22 Upvotes 2 Comments
π Enshittification
Enshittification, also known as platform decay, is a way to describe the pattern of decreasing quality of online platforms that act as two-sided markets. Enshittification can be seen as a form of rent-seeking. Examples of alleged enshittification have included Google Search, Amazon, Bandcamp, Facebook, Reddit, and Twitter.
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- "Enshittification" | 2023-12-12 | 28 Upvotes 16 Comments
- "Enshittification" | 2023-10-23 | 18 Upvotes 1 Comments