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The Hardest Logic Puzzle Ever

The Hardest Logic Puzzle Ever
The Hardest Logic Puzzle Ever is a logic puzzle invented by American philosopher and logician George Boolos and published in The Harvard Review of Philosophy in 1996. A translation in Italian was published earlier in the newspaper La Repubblica, under the title L'indovinello più difficile del mondo. The puzzle is inspired by Raymond Smullyan. It is stated as follows: Three gods A, B, and C are called, in no particular order, True, False, and Random. True always speaks truly, False always speaks falsely, but whether Random speaks truly or falsely is a completely random matter. Boolos provides the following clarifications:[1] a single god may be asked more than one question, questions are permitted to depend on the answers to earlier questions, and the nature of Random's response should be thought of as depending on the flip of a coin hidden in his brain: if the coin comes down heads, he speaks truly; if tails, falsely.[2] History[edit] The solution[edit] Boolos' question was to ask A:

Recent Database Breaches Teach Security Lessons FIDO Alliance technology will allow enterprises to replace passwords with plug-and-play multifactor authentication. By Phil Dunkelberger President & CEO, Nok Nok Labs, 3/26/2014 1 Comment | Read | Post a Comment News Hackers interrupt and deface sites of black-market forums selling credit card data stolen from Target and other retailers.By Mathew J. Schwartz , 3/18/2014 Euthanasia Coaster Euthanasia Coaster es un concepto artístico para una montaña rusa de acero diseñada para matar a sus pasajeros.[1] En 2010 fue diseñada y hecha a escala por Julijonas Urbonas, un candidato a doctorado en el Royal College of Art de Londres. Urbonas, que ha trabajado en un parque de diversiones, mencionó que el objetivo de su montaña rusa es tomar vidas "con elegancia y euforia".[2] En cuanto a las aplicaciones prácticas de su diseño, Urbonas mencionó "eutanasia" o "ejecución".[3] John Allen, que fue presidente de la Philadelphia Toboggan Company, inspiró a Urbonas con su descripción de la montaña rusa ideal como una que "se lleva a 24 personas y todas ellas regresan muertas".[4] Como un medio hipotético para la eutanasia, el diseño causó la preocupación de la asociación anti-eutanasia Care Not Killing.[5] Diseño[editar] Fisiopatología[editar] Exhibición[editar]

Create a Facebook Fan Page for your Blog Facebook is a great Social Networking Site to promote your blog or brand. Most of the major brands do have a Facebook Fan Page. Here are some examples of Facebook Fan pages – Coca Cola FB Fan Page , Mashable FB Fan Page. Are you impressed and want to create one for your blog?

Culture of Japan Castles in Japan were built to guard important or strategic sites. Osechi, new year special dishes in three-tiered box The culture of Japan has changed greatly over the millennia, from the country's prehistoric Jōmon period, to its contemporary modern culture, which absorbs influences from Asia, Europe, and North America.[1] Japan's indigenous culture originates primarily from the Yayoi people who settled in Japan between 1000 BCE to 300 CE. Yayoi culture quickly spread to the main island of Honshū, mixing with the native Jōmon culture.[2] Modern Japanese have an estimated 80% Yayoi and 20% Jōmon ancestry.[3] The inhabitants of Japan experienced a long period of relative isolation from the outside world for over 220 years during the Tokugawa shogunate until the arrival of the "Black Ships" and the Meiji period.

J-pop Form and definition[edit] In 1990, the Japanese subsidiary of Tower Records defined J-pop as all Japanese music belonging to the Recording Industry Association of Japan except Japanese independent music (which they term "J-indie"); their stores began to use additional classifications, such as J-club, J-punk, J-hip-hop, J-reggae, J-anime, and Visual kei by 2008, after independent musicians started to release works via major labels.[7] Ito Music City, a Japanese record store, adopted expanded classifications including Group Sounds, idol of the 1970s–1980s, enka, folk and established musicians of the 1970s–1980s, in addition to the main J-pop genres.[7] Hide of Greeeen openly described their music genre as J-pop. He said, "I also love rock, hip hop and breakbeats, but my field is consistently J-pop. For example, hip hop musicians learn 'the culture of hip hop' when they begin their career. We are not like those musicians and we love the music as sounds very much.

10 Search Engines to Explore the Invisible Web Not everything on the web will show up in a list of search results on Google or Bing; there are lots of places that their web crawlers cannot access. To explore the invisible web, you need to use specialist search engines. Here are our top 12 services to perform a deep internet search. What Is the Invisible Web?

World's funniest joke The "world's funniest joke" is a term used by Richard Wiseman of the University of Hertfordshire in 2002 to summarize one of the results of his research. For his experiment, named LaughLab, he created a website where people could rate and submit jokes.[1] Purposes of the research included discovering the joke that had the widest appeal and understanding among different cultures, demographics and countries.[citation needed] The History Channel eventually hosted a special on the subject.[citation needed] The jokes Bobby Fischer In 1970, "Fischer dominated his contemporaries"[6] by winning the 1970 Interzonal Tournament by a record 3½-point margin and winning 20 consecutive games, including two unprecedented 6–0 sweeps in the Candidates Matches.[7] In July 1971, he became the first official World Chess Federation (FIDE) number-one-ranked player, spending 54 total months at number one. In 1972, he captured the World Chess Championship from Boris Spassky of the USSR in a match, held in Reykjavík, Iceland, publicized as a Cold War confrontation which attracted more worldwide interest than any chess championship before or since.[8] In the 1990s, Fischer patented a modified chess timing system (which added a time increment after each move; now a standard practice in top tournament and match play) and created a new variant of chess called Fischerandom (Chess960).[13] Early years[edit]

Immortal Game Game animation General description[edit] Checkmate of the Immortal Game Adolf Anderssen was one of the strongest players of his time, and many consider him to have been the world's strongest player after his victory in the London 1851 chess tournament.

How to Memorize: 27 steps Edit Article Memory HelpAuditory learnersVisual learnersTactile/kinesthetic learnerReading method Edited by Nicole Willson, James Quirk, Flickety, January99 and 135 others Tired of taking tests and not being able to remember what you just read last night? You know you know it, it's just not coming to you in the heat of the moment.

How to Learn Speed Reading: 17 steps Steps Part 1 Learning to Speed Read <img alt="Image titled Learn Speed Reading Step 1" src=" width="728" height="546" class="whcdn" onload="WH.performance.clearMarks('image1_rendered'); WH.performance.mark('image1_rendered');">1Stop talking to yourself. Almost every reader "subvocalizes," or moves their throat as they imagine speaking the words.[1] This may help the reader remember concepts, but it's also a major barrier to speed.[2][3] Here are a few ways to keep this habit to a minimum: Chew gum or hum while you read. This occupies muscles used to subvocalize.If you move your lips as you read, hold a finger against them.

How to Be Ambidextrous - wikiHow, the free how-to guide Edit Article Edited by Tom Viren, Jamie Bresee, Josh W., Imperatrix and 38 others Michelangelo, Einstein, Tesla, Leonardo da Vinci and Truman were all physically ambidextrous. Here are some tips to learn how to do it. These have been collected from friends, books, and the internet. Ad Fencing Competitive fencing is one of five sports which has been featured at every one of the modern Olympic Games, the other four being Athletics, Cycling, Swimming, and Gymnastics. Competitive fencing[edit] Governing body[edit] Fencing is governed by Fédération Internationale d'Escrime or FIE.