Optical Illusions and Visual Phenomena untitled List of paradoxes This is a list of paradoxes, grouped thematically. The grouping is approximate, as paradoxes may fit into more than one category. Because of varying definitions of the term paradox, some of the following are not considered to be paradoxes by everyone. This list collects only scenarios that have been called a paradox by at least one source and have their own article. Although considered paradoxes, some of these are based on fallacious reasoning, or incomplete/faulty analysis. Logic Self-reference These paradoxes have in common a contradiction arising from self-reference. Barber paradox: A barber (who is a man) shaves all and only those men who do not shave themselves. Vagueness Ship of Theseus (a.k.a. Mathematics Statistics Probability Infinity and infinitesimals Geometry and topology The Banach–Tarski paradox: A ball can be decomposed and reassembled into two balls the same size as the original.
Study Matrix Art Test Your Brain With Brain Teasers and Games Here you can enjoy the Top 25 Brain Teasers, Games & Illusions that SharpBrains readers (primarily adults, but some younger minds too) have enjoyed the most. It is always good to learn more about our brains and to exercise them!. Fun experiments on how our brains and minds work 1. 2. 3. 4. Challenge your attention and memory 5. 6. 7. Optical illusions 8. 9. 10. 11. Language and logic puzzles 12. 13. 14. 15. A few visual workouts 16. 17. 18. Teasing your pattern recognition and thinking 19. 20. 21. 22. Brain teasers for job interviews 23. 24. 25.
30 Questions Guaranteed to Make You Think Instead of giving you information that you want, I’m going to teach you something today by being indirect. Here’s the lesson: everything you need, every revelation I’ve had, and everything that I could possibly write about on this blog, ca n be found inside yourself. As in – with the proper thinking and questioning, you too can come to the conclusions that I’ve come to. “But Brett,” you ask, “Won’t that render you obsolete? No, not necessarily. However, the lesson I’m trying to teach you is not that you can become me, but that when you need something – an idea, the strength to carry through your will, or anything else – it can be found within. To reach my goal for you, I’m going to ask you deep, philosophical questions that will test your thinking ability. These are designed to make you think. (Also, as a note, keep in mind that I’m going to keep my own answers to these questions private. The Questions 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24.
Freeplane - free mind mapping and knowledge management software The Superplexus This is the three-dimensional spherical labyrinth that challenges the limits of your manual dexterity and spatial understanding as you maneuver a 5/8" wooden marble through its entire course. The Superplexus is a complex network of chicanes, multi-planar hairpin turns, spirals, and staircases--even a vortex. Hand made from 3- and 6-ply Finnish birch that form the track, over 400 hours are involved in its construction. The labyrinth is set inside a 36" diameter acrylic sphere affixed to a Jatoba base using a stainless steel gimbaled mount that allows you to tilt the sphere in any direction to guide the marble. The entire track laid out on a straight line is 31' longer than a football field. In addition to the track, the ball must travel on a 1/16" diameter stainless steel wire pathway at eight points along the journey.