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๐ Jeffrey Hudson the Court Dwarf of the English Queen Henrietta Maria of France
Jeffrey Hudson (1619 โ c.โ1682) was a court dwarf of the English queen Henrietta Maria of France. He was famous as the "Queen's dwarf" and "Lord Minimus" and was considered one of the "wonders of the age" because of his extreme but well-proportioned smallness. He fought with the Royalists in the English Civil War and fled with the Queen to France but was expelled from her court when he killed a man in a duel. He was captured by Barbary pirates and spent 25 years enslaved in North Africa before being ransomed back to England.
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- "Jeffrey Hudson the Court Dwarf of the English Queen Henrietta Maria of France" | 2025-10-07 | 49 Upvotes 18 Comments
๐ Oblique Strategies
Oblique Strategies (subtitled Over One Hundred Worthwhile Dilemmas) is a card-based method for promoting creativity jointly created by Brian Eno and Peter Schmidt, first published in 1975. Physically, it takes the form of a deck of 7-by-9-centimetre (2.8ย in รย 3.5ย in) printed cards in a black box. Each card offers a challenging constraint intended to help artists (particularly musicians) break creative blocks by encouraging lateral thinking.
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- "Oblique Strategies" | 2022-05-22 | 48 Upvotes 20 Comments
- "Oblique Strategies" | 2020-09-14 | 203 Upvotes 54 Comments
- "Oblique Strategies" | 2015-09-03 | 10 Upvotes 2 Comments
๐ Van Eck Phreaking
Van Eck phreaking (also known as Van Eck Radiation) is a form of eavesdropping in which special equipment is used to pick up side-band electromagnetic emissions from electronic devices that correlate to hidden signals or data for the purpose of recreating these signals or data in order to spy on the electronic device. Side-band electromagnetic radiation emissions are present in (and with the proper equipment, can be captured from) keyboards, computer displays, printers, and other electronic devices.
In 1985, Wim van Eck published the first unclassified technical analysis of the security risks of emanations from computer monitors. This paper caused some consternation in the security community, which had previously believed that such monitoring was a highly sophisticated attack available only to governments; van Eck successfully eavesdropped on a real system, at a range of hundreds of metres, using just $15 worth of equipment plus a television set.
As a consequence of this research, such emanations are sometimes called "van Eck radiation", and the eavesdropping technique van Eck phreaking. Government researchers were already aware of the danger, as Bell Labs had noted this vulnerability to secure teleprinter communications during World War II and was able to produce 75% of the plaintext being processed in a secure facility from a distance of 80 feet (24 metres). Additionally the NSA published Tempest Fundamentals, NSA-82-89, NACSIM 5000, National Security Agency (Classified) on February 1, 1982. In addition, the van Eck technique was successfully demonstrated to non-TEMPEST personnel in Korea during the Korean War in the 1950s.
While Phreaking is the process of exploiting telephone networks, it is used here because of its connection to eavesdropping. Van Eck phreaking of CRT displays is the process of eavesdropping on the contents of a CRT by detecting its electromagnetic emissions.
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- "Van Eck Phreaking" | 2021-03-23 | 127 Upvotes 60 Comments
- "Van Eck Phreaking" | 2015-12-06 | 39 Upvotes 16 Comments
๐ Lakes of Wada
In mathematics, the lakes of Wada (ๅ็ฐใฎๆน, Wada no mizuumi) are three disjoint connected open sets of the plane or open unit square with the counterintuitive property that they all have the same boundary. In other words, for any point selected on the boundary of one of the lakes, the other two lakes' boundaries also contain that point.
More than two sets with the same boundary are said to have the Wada property; examples include Wada basins in dynamical systems. This property is rare in real-world systems.
The lakes of Wada were introduced by Kunizล Yoneyamaย (1917,โpage 60), who credited the discovery to Takeo Wada. His construction is similar to the construction by Brouwer (1910) of an indecomposable continuum, and in fact it is possible for the common boundary of the three sets to be an indecomposable continuum.
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- "Lakes of Wada" | 2018-10-07 | 66 Upvotes 15 Comments
๐ Format wars this past century
A format war describes competition between mutually incompatible proprietary formats that compete for the same market, typically for data storage devices and recording formats for electronic media. It is often characterized by political and financial influence on content publishers by the developers of the technologies. Developing companies may be characterized as engaging in a format war if they actively oppose or avoid interoperable open-industry technical standards in favor of their own.
A format war emergence can be explained because each vendor is trying to exploit cross-side network effects in a two-sided market. There is also a social force to stop a format war: when one of them wins as de facto standard, it solves a coordination problem for the format users.
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- "Format wars this past century" | 2009-03-21 | 14 Upvotes 5 Comments
๐ Frankenstein Veto
A Frankenstein veto occurs when an American state Governor selectively deletes words from a bill, stitching together the remainder (ร la Victor Frankenstein) to form a new bill different from that passed by the legislature.
In 2008, the state Constitution of Wisconsin was amended to place certain restrictions on the Frankenstein veto. With those changes, the governor of Wisconsin still has far greater veto powers than any other governor in the United States of America.
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- "Frankenstein Veto" | 2020-02-09 | 177 Upvotes 87 Comments
๐ Dreadful Sanctuary
Dreadful Sanctuary is a science fiction novel by British author Eric Frank Russell. After its serialization in the American magazine Astounding Science Fiction in 1948, it was first published in book form in 1951 by Fantasy Press in an edition of 2,975 copies. Russell rewrote the novel for the first American paperback edition, published by Lancer Books in 1963. Editorial interference forced Russell to replace the original ending with a more tragic conclusion in this edition. A British hardcover was issued in 1953, with a paperback incorporating further "minor revisions" following in 1967. Italian translations of Dreadful Sanctuary were published in 1953 and 1986; a German translation appeared in 1971, and a French translation in 1978.
Partly inspired by Fortean ideas, the novel concerns an international conspiracy to prevent humanity from achieving space travel.
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- "Dreadful Sanctuary" | 2021-08-26 | 16 Upvotes 2 Comments
๐ Desiderata
"Desiderata" (Latin: "things desired") is an early 1920s prose poem by the American writer Max Ehrmann. Although he copyrighted it in 1927, he distributed copies of it without a required copyright notice during 1933 and c.โ1942, thereby forfeiting his US copyright. Largely unknown in the author's lifetime, its use in devotional and spoken word recordings in 1960 and 1971 called it to the attention of the world.
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- "Desiderata by Max Ehrmann" | 2022-08-19 | 60 Upvotes 36 Comments
- "Desiderata" | 2013-02-06 | 148 Upvotes 39 Comments
๐ Nazi Book Burnings
The Nazi book burnings were a campaign conducted by the German Student Union (the "DSt") to ceremonially burn books in Nazi Germany and Austria in the 1930s. The books targeted for burning were those viewed as being subversive or as representing ideologies opposed to Nazism. These included books written by Jewish, pacifist, religious, liberal, anarchist, socialist, communist, and sexologist authors among others. The first books burned were those of Karl Marx and Karl Kautsky.
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- "Nazi Book Burnings" | 2018-12-24 | 11 Upvotes 1 Comments
๐ The Indiana Pi Bill
The Indiana Pi Bill is the popular name for bill #246 of the 1897 sitting of the Indiana General Assembly, one of the most notorious attempts to establish mathematical truth by legislative fiat. Despite its name, the main result claimed by the bill is a method to square the circle, rather than to establish a certain value for the mathematical constant ฯ, the ratio of the circumference of a circle to its diameter. The bill, written by the crank Edward J. Goodwin, does imply various incorrect values of ฯ, such as 3.2. The bill never became law, due to the intervention of Professor C. A. Waldo of Purdue University, who happened to be present in the legislature on the day it went up for a vote.
The impossibility of squaring the circle using only compass and straightedge constructions, suspected since ancient times, was rigorously proven in 1882 by Ferdinand von Lindemann. Better approximations of ฯ than those implied by the bill have been known since ancient times.
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- "Indiana Pi Bill" | 2025-03-19 | 12 Upvotes 3 Comments
- "In 1897, an Indiana bill was going to redefine Pi" | 2013-10-17 | 34 Upvotes 13 Comments