ÿþ<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <head> <META NAME="DESCRIPTION" CONTENT="A selection of classic paradoxes, including Zeno's Paradox, Russel's Paradox, The Liar Paradox and many more."> <META NAME="KEYWORDS" CONTENT="curiouser, paradox, paradoxical, paradoxes, list, catalogue, Zeno's, Zeno, Epicurus, Bertrand Russel, Liar, Set Theory, Maths, Math, Mathematics, puzzles, lateral thinking, puzzling"> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <meta http-equiv="Content-Language" content="EN-GB"> <title>Paradoxes - curiouser.co.uk</title> <LINK REL="stylesheet" HREF="style3.css" TYPE="text/css"> <script type="text/javascript"> var _gaq = _gaq || []; _gaq.push(['_setAccount', 'UA-13092328-1']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 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Some of these may be featured on curiouser.co.uk in due course. If you are interested to write about any of these paradoxes for this site, please <A href="http://www.curiouser.co.uk/uk/web%20form.htm">CONTACT</a> curiouser.co.uk.<p> </p> <div class="list"> <ul> <li>Abilene paradox </li> <li>Berry paradox: What is "The first number not nameable in under ten words"? </li> <li>Borel's paradox </li> <li>Braess' paradox </li> <li>Buridan's ass </li> <li>Burali-Forti paradox </li> <li>Cantor's paradox: is the set of all sets equal to or greater than its own power set? </li> <li>Control paradox </li> <li>Cosmic ray paradox </li> <li>Curry's paradox: "If I'm not mistaken, the world will end in a week." </li> <li>D'Alembert's paradox </li> <li>Einstein-Podolsky-Rosen paradox </li> <li>Epicurian Paradox: </li> <li>Elevator paradox </li> <li>Fermi paradox: If there are many other sentient species in the Universe, then where are they? Shouldn't their presence be obvious? </li> <li>Gabriel's Horn or Torricelli's trumpet </li> <li>Galileo's paradox </li> <li>Gibbs paradox </li> <li>Grandfather paradox: You travel back in time and kill your grandfather before he meets your grandmother, resulting in your never being conceived. </li> <li>Giffen paradox: can increasing the price of bread make poor people eat more of it? </li> <li>GZK paradox: high-energy cosmic rays have been observed which seem to violate the Greisen-Zatsepin-Kuzmin limit which is a consequence of special relativity </li> <li>Hausdorff paradox </li> <li>Hedonism paradox </li> <li>Hempel's Ravens </li> <li>Hilbert's paradox of the Grand Hotel </li> <li>Horse paradox </li> <li>Ideal evidence paradox: </li> <li>Jevon's paradox: In economics, increases in efficiency lead to even larger increases in demand. </li> <li>Kavka's toxin puzzle: Can one intend to drink the nondeadly toxin, if the intention is the only thing needed to get the reward? </li> <li>Loschmidt's paradox </li> <li>Lottery paradox </li> <li>Low birth weight paradox: low birth weight babies have a higher mortality rate, babies of smoking mothers have lower average birth weight, babies of smoking mothers have a higher mortality rate, but low birth weight babies of smoking mothers have a lower mortality rate than other low birth weight babies. </li> <li>Mere addition paradox: is a large population living barely tolerable lives better than a small happy population? </li> <li>Moon Illusion: Why does the moon appear larger at the horizon than at its zenith? </li> <li>Moore's paradox: "It's raining but I don't believe that it is." </li> <li>Mpemba paradox </li> <li>Newcomb's paradox: How do you play a game against an omniscient opponent? </li> <li>Nihilist paradox: if truth does not exist, the statement "truth does not exist" is a truth, thereby proving itself incorrect. </li> <li>Omnipotence paradox: Can an omnipotent being create a rock too heavy to lift? Can an irresistible force move an unmovable object? </li> <li>Predestination paradox: A man travels back in time and impregnates his great-great-grandmother. The result is a line of offspring and descendants, including the man's parent(s) and the man himself. Therefore, unless he makes the time-travel trip at all, he will never exist. </li> <li>Richard's paradox </li> <li>Skolem Paradox </li> <li>Simpson's paradox </li> <li>Sorites paraodox: If one keeps removing grains of sand from a heap, at what point does it cease to be a heap? </li> <li>St. Petersburg paradox: Can it be rational to refuse a small finite entry fee for a game with a possible infinite pay off? </li> <li>Twin paradox </li> <li>Theseus's Ship/George Washington's Axe </li> <li>Unexpected hanging paradox </li> <li>Zeno's paradoxes </li> </ul> </div> <div id="share" style="margin-bottom: 3em"> <!-- AddThis Button BEGIN --> <div class="addthis_toolbox addthis_default_style"> <a href="http://www.addthis.com/bookmark.php?v=250&amp;username=onecentrob" class="addthis_button_compact">Share</a> <span class="addthis_separator">|</span> <a class="addthis_button_preferred_1"></a> <a class="addthis_button_preferred_2"></a> <a class="addthis_button_preferred_3"></a> </div> <script type="text/javascript">var addthis_config = {"data_track_clickback":true};</script> <script type="text/javascript" src="http://s7.addthis.com/js/250/addthis_widget.js#username=onecentrob"></script> <!-- AddThis Button END --> </div> <div class="center"> <div> <a href="http://www.curiouser.co.uk/index.htm"> HOME </a> I <a href="http://www.curiouser.co.uk/puzzles"> PUZZLES </a> I <a href="http://www.curiouser.co.uk/paradoxes"> PARADOXES </a> I <a href="http://www.curiouser.co.uk/illusions"> ILLUSIONS </a> I <a href="http://www.curiouser.co.uk/poems"> POEMS </a> I <a href="http://www.curiouser.co.uk/quotations"> QUOTATIONS </a> I <a href="http://www.curiouser.co.uk/games"> GAMES </a> I <a href="http://www.curiouser.co.uk/facts"> FACTS </a> </div> <div style="margin-bottom:3em; margin-top: 1em; font-size: 70%"> <A href="http://www.curiouser.co.uk/stranger">STRANGER </a> I <A href="http://www.curiouser.co.uk/donate">CONTRIBUTE </a> I <A href="http://www.curiouser.co.uk/contact">CONTACT </a> I <A href="http://www.curiouser.co.uk/runciblespoonsociety">JOIN THE SOCIETY </a> I <A href="http://www.curiouser.co.uk/books">BOOKS </a> I <A href="http://www.curiouser.co.uk/links">LINKS </a> I <A href="http://www.curiouser.co.uk/privacy/privacy.htm">PRIVACY STATEMENT </a> I <A href="http://www.curiouser.co.uk/sitemap.htm">SITE MAP </a> I <A href="http://www.curiouser.co.uk/google.htm">SEARCH </a> </div> <div class="bottom_ads"> <script type="text/javascript"><!-- google_ad_client = "pub-2185628889904477"; /* 728x90, created 10/11/10 */ google_ad_slot = "6906520196"; google_ad_width = 728; google_ad_height = 90; //--> </script> <script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script> </div> <p style="margin-top:3em"> &copy; 2000 <a href="http://www.curiouser.co.uk">curiouser.co.uk </a>All rights reserved. </p> </div> </div> </div> </body>