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Logic Puzzles

Logic Puzzles
Bulbs This is one of my favorite free printable logic puzzles with a real life solution. There are three switches downstairs. Keep the first bulb switched on for a few minutes. A Ping-Pong Ball in a Hole Your last good ping-pong ball fell down into a narrow metal pipe imbedded in concrete one foot deep. All the tools are random things that are not going to help you. A Man in an Elevator A man who lives on the tenth floor takes the elevator down to the first floor every morning and goes to work. The man is of short stature. The Ball How can you throw a ball as hard as you can and have it come back to you, even if it doesn't bounce off anything? Throw the ball straight up in the air. The Magnet This logic puzzle was published in Martin Gardner's column in the Scientific American. You can hang the iron rods on a string and watch which one turns to the north (or hang just one rod). Virile Microbes A Petri dish hosts a healthy colony of bacteria. The dish will be full at 12:44. Philosopher's Clock Related:  Critical Thinking

Famous Paradoxes - Examples and Definition What is a Paradox A paradox is a statement that contradicts itself or a situation which seems to defy logic. That's a simple definition of paradox. Often premises can be proven false which rectifies the contradiction. On this page you can find several good paradox examples to tease your mind. Paradox Examples 1. This is a well known paradox written by the great stoical logician Chrysippos. A Cretan sails to Greece and says to some Greek men who are standing upon the shore: "All Cretans are liars." If someone says "I always lie", are they telling the truth? 2. This version of a famous paradox was presented by English mathematician P. Back side: THE SENTENCE ON THE OTHER SIDE OF THIS CARD IS TRUE. Face side: THE SENTENCE ON THE OTHER SIDE OF THIS CARD IS FALSE. 3. Analogue paradox to the 'liar paradox' formulated by English logician, philosopher and mathematician Bertrand Russell. 4. My Favorite Sophisms 1. A slim crocodile living in the Nile took a child. 2. 3. Think about these

Beautiful Photos of Italy You Never Seen Before Venice – Grand Canal and beautiful Basilica Santa Maria della Salute. Photo by: Iakov Kalinin Colorful Murano islands are linked by bridges in the Venetian Lagoon, northern Italy. Photo by: Chris Chabot Manarola is a small town in northern Italy. Beautiful Tuscany landscapes, central Italy. Hiking in the golden tops of Italian Alps. Sunset in Barrea lake, central Italy. Lake house, South Tyrol, Lake Reschen. Levanzo, island of the Egadi , Sicily. Venice, a city sited on a group of 118 small islands separated by canals and linked by bridges as seen from above. Stunning Dolomites mountains comprises a mountain range in the northern Italian Alps, numbering 18 peaks which rise to above 3,000 metres and cover 141,903 ha. The beauty of Positano, a village and comune on the Amalfi Coast, in Campania, Italy, mainly in an enclave in the hills leading down to the coast.

Lateral Thinking Problems - Semantics Lateral thinking problems that require you to pay close attention to the exact wording of the problem. 1. A woman gave natural birth to two sons who were born on the same hour of the same day of the same month of the same year. But they were not twins and she had no access to a time machine. How could this be? Solution: They were two of a set of triplets (or quadruplets, etc.) 2. Solution: The water in the river only came up to the man's chest. 3. Hint: The truck driver was not in reverse, nor was he in any particular emergency. Solution: The truck driver was walking. 4. Hint: This really could happen, and probably does in some form or other. Solution: The man is a philanthropist who bought great quantities of rice to sell to poor people at prices they could afford. 5. Solution: Because he would earn three times as much money!

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Zététique Un article de Wikipédia, l'encyclopédie libre. Pour la définition de la zététique comme partie des mathématiques, voir Algèbre nouvelle. La zététique est définie comme « l'art du doute » par Henri Broch[1]. La zététique est présentée comme « l'étude rationnelle des phénomènes présentés comme paranormaux, des pseudosciences et des thérapies étranges ». La zététique est destinée aux théories scientifiquement réfutables, c'est-à-dire respectant le critère de discrimination de Popper (1902-1994). La zététique se réclame aussi du scepticisme scientifique, et plus généralement de la démarche de doute cartésien qu'elle décrit comme nécessaire en science comme en philosophie. Origine du mot[modifier | modifier le code] « Zététique » vient de l’adjectif grec ζητητικός, zētētikós « qui aime chercher », « qui recherche », lequel est issu du verbe ζητῶ, « chercher ». Elle a pour objectif de contribuer à la formation, chez chaque individu, d'une capacité d'appropriation critique du savoir humain.

Kenilworth Castle - Discover Kenilworth, Warwickshire - the heart of the Midlands For up to date information on opening times and events for Kenilworth Castle and Elizabethan Gardens, please visit English Heritage. ”Described by many as the definitive English Castle” Simon Jenkins, England’s Thousand Best Houses Immortalised and romanticised by Sir Walter Scott in his early 19th century novel, Kenilworth is probably one of the finest ruined castles to be seen in Britain today. Kenilworth Castle has been intimately linked with some of the most important names in English history. The first castle at Kenilworth was built 50 years after the Norman conquest when Henry I gave the Royal Estate of Stoneleigh to Geoffrey de Clinton. Kenilworth stayed in royal hands until 1253, when the King’s brother-in-law Simon de Montfort (Earl of Leicester) was made governor by Henry III. The ‘round table of one hundred knights’ and their ladies took place in 1279 and Kenilworth was one of a small number of licensed tournament grounds where knights were able to meet. the nation.

Critical Thinking On The Web Top Ten Argument Mapping Tutorials. Six online tutorials in argument mapping, a core requirement for advanced critical thinking.The Skeptic's Dictionary - over 400 definitions and essays. The Fallacy Files by Gary Curtis. What is critical thinking? Nobody said it better than Francis Bacon, back in 1605: For myself, I found that I was fitted for nothing so well as for the study of Truth; as having a mind nimble and versatile enough to catch the resemblances of things … and at the same time steady enough to fix and distinguish their subtler differences; as being gifted by nature with desire to seek, patience to doubt, fondness to meditate, slowness to assert, readiness to consider, carefulness to dispose and set in order; and as being a man that neither affects what is new nor admires what is old, and that hates every kind of imposture. A shorter version is the art of being right. More definitions... Program for Critical Thinking Program for better decision making Our umbrella site. 6 Dec 21 May

Northern Europe's Best Kept Secrets: Baltic States for Ten Days From $1,979 You don't tend to hear a lot about travel to the three countries that make up the Baltic States -Estonia, Latvia, and Lithuania but that may be about to change. Located on the eastern coast of the Baltic Sea, these formerly Russian provinces and republics of the former USSR, found their independence a mere 15 years ago. You don't tend to hear a lot about travel to the three countries that make up the Baltic States -Estonia, Latvia, and Lithuania but that may be about to change. Located on the eastern coast of the Baltic Sea, these formerly Russian provinces and republics of the former USSR, found their independence a mere 15 years ago. Despite their shared past and geographic grouping, the Baltic States each have a very different character, language, and currency. They are sparsely populated countries featuring well-preserved medieval cities, a young population and the main cities offer great cultural opportunities and all the modern amenities. Getting There