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Expand Your Mind - Puzzles and Brain Teasers

Expand Your Mind - Puzzles and Brain Teasers
To expand your mind you need to learn new facts and develop new modes of thinking that will make the information that you already know more useful. Solving the following problems requires a combination of world knowledge, mathematics, common sense, logic, and science (chemistry, physics). This is not an IQ test. To expand your mind, do not look at the answers until after you have made an honest effort to figure out the problems. The Bear A bear walks south for one kilometer, then it walks west for one kilometer, then it walks north for one kilometer and ends up at the same point from which it started. The Chicken and Egg Problem A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. The Chicken and Leg Problem A chicken farmer also has some cows for a total of 30 animals, and the animals have 74 legs in all. The Bacteriologist At what time was the container half full? How big was the container? Fibonacci's problem of the birds Moon Photographer Related:  Just to inspire students

Nick's Mathematical Puzzles Welcome to my selection of mathematical puzzles. What's new? See puzzle 160. The math puzzles presented here are selected for the deceptive simplicity of their statement, or the elegance of their solution. They range over geometry, probability, number theory, algebra, calculus, trigonometry, and logic. Explaining how an answer is arrived at is more important than the answer itself. Each puzzle is assigned a level of difficulty of between one and four stars, with four being the most difficult. The source for each problem is given at the bottom of the solution page. I welcome feedback of any kind. Some brief biographical information. Nick Back to top

Perception puzzles This page illustrates that our visual perception cannot always be trusted. The components of an object can distort the perception of the complete object. Our mind is the final arbiter of truth. The Parthenon Optical illusions have been studied for millenia. Perpetually ascending staircase. The red squares are the same color in the upper part and in the lower part of the "X" The diagonal lines are parallel. There are no gray spots at the corners of the squares. Stairway between corners of a flat square. You can go from corner A to corner B by climbing the stairs or by going around a level plane. The rows of black and white squares are all parallel. Children's Activity Project Color the elephant with crayons or colored pencils making sure to stay within the lines. Click the image to display it in a new page for printing. Impossible triangle. The radiating lines influence our perception of the parallel lines. The center circles are both the same size. The Vertical lines are both the same length.

cyprien The Atlantic slave trade: What too few textbooks told you - Anthony Hazard The Atlantic slave trade sent slaves to various locations in the world. What effect did this forced migration have on these areas? Visit the Mariner’s Museum Captive Passage website. Gain some more perspective on how the slave trade affected the Americas. Then read the transcript or listen to this 15 Minute History podcast and find out more. Gain a greater understanding of life aboard the slave ships at PBS. What do North America, the Caribbean, Brazil, Europe and Africa all have in common? Are their myths and misconceptions about slavery? 77 Brain Hacks to Learn Faster, Deeper, and Better Source: Online Education Database If someone granted you one wish, what do you imagine you would want out of life that you haven't gotten yet? For many people, it would be self-improvement and knowledge. New knowledge is the backbone of society's progress. Great thinkers such as Leonardo da Vinci, Thomas Edison, Benjamin Franklin, Albert Einstein, and others' quests for knowledge have led society to many of the marvels we enjoy today. Your quest for knowledge doesn't have to be as Earth-changing as Einstein's, but it can be an important part of your life, leading to a new job, better pay, a new hobby, or simply knowledge for knowledge's sake — whatever is important to you as an end goal. Life-changing knowledge does typically require advanced learning techniques. Here are 77 tips related to knowledge and learning to help you on your quest. 1. 2. 4. 5. Balance 6. 7. 8. 9. 10. 11. 12. 13. 14. Recall Techniques 15. 16. 17. Visual Aids 18. 19. 20. 21. 22. Verbal and Auditory Techniques 24. 25.

The Ultimate Puzzle Site - Brain-Teasers Five sailors survive a shipwreck and swim to a tiny island where there is nothing but a coconut tree and a monkey. The sailors gather all the coconuts and put them in a big pile under the tree. Exhausted, they agree to go to wait until the next morning to divide the coconuts. At one o'clock in the morning, the first sailor wakes up. At two o'clock, the second sailor wakes up. At three, four, and five o'clock in the morning, the third, fourth, and fifth sailors each wake up and carry out the same actions. In the morning, all the sailors wake up, and try to look innocent. Assesment, IQ and Aptitude Test Cool Flash Games - Jeux Flash Gratuits et Jeu Vidéo en Ligne Gratuit

What really happens to the plastic you throw away - Emma Bryce If you watched this video, you’re probably interested in how plastics are made, and what impact they have on the environment. For starters, you might want to watch this video that shows you how plastic bottles are produced. The American Chemistry Council also has some helpful guidelines on how the material is manufactured, what different types there are, and what role monomers and polymers play in the manufacturing process. (What are monomers and polymers anyway? Moving on from the molecular stuff, plastic also has more visible impacts on the earth. Talking of hazards, plastic in the ocean is one of the greatest hazards of all. But there’s hope: plastics can be recycled, after all. Finally, this TED speaker shares some ‘tough truths about plastic pollution’, and in this talk, you can meet the man who first discovered those ‘garbage patches’ in the sea. Watch these other TED Ed lessons on Plastics and Pollution!

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