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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. There is no time limit. 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? Moon Photographer Eye Puzzle

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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.

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.

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. 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?

Ponder this You are cordially invited to match wits with some of the best minds in IBM Research. Seems some of us can't see a problem without wanting to take a crack at solving it. Does that sound like you? Good. Athey Educational's Games Menu Why choose Athey Educational? We were the first to produce 11+ practice papers and have gone on to sell over 1 million packs worldwide. Why do your knuckles pop? - Eleanor Nelsen Want to learn the latest on this topic? Read the recent publication: Real Time Visualization of Joint Cavitation aka “knuckle cracking!” Then listen to the latest Morning Edition at NPR: Why Knuckles Crack! Scroll down at the site and watch an MRI of knuckle cracking in real time to see the “pop” during the “pull my finger study!” Here’s another interesting physiological phenomenon that has to do with gas solubility: decompression sickness, or “the bends.” When divers are deep underwater, they experience ambient pressure much higher than it is on land.

What is Mind Mapping? (and How to Get Started Immediately) A mind map is a graphical way to represent ideas and concepts. It is a visual thinking tool that helps structuring information, helping you to better analyze, comprehend, synthesize, recall and generate new ideas. Just as in every great idea, its power lies in its simplicity.

7 TED-Ed Lessons for a healthier you How do carbohydrates impact your health? What would happen if you didn’t sleep? How does sugar affect your brain? In honor of World Health Day, here are 7 TED-Ed Lessons for a healthier you: 1.