Today’s Daily Brain Teaser (Mar 03, 2016)

A Problem With Pearls

“I’m a very rich man, so I’ve decided to give you some of my fortune. Do you see this bag? I have 5001 pearls inside it. 2501 of them are white, and 2500 of them are black. No, I am not racist. I’ll let you take out any number of pearls from the bag without looking. If you take out the same number of black and white pearls, I will reward you with a number of gold bars equivalent to the number of pearls you took.”

How many pearls should you take out to give yourself a good number of gold bars while still retaining a good chance of actually getting them?

Check Braingle.com for the answer.

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Today’s Daily Trivia Quiz (Mar 03, 2016)

Monster Mash!
Test your knowledge of this song by Bobby “Boris” Pickett.

Take the Quiz at Braingle.com

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Vocabulary : Word of the Day : Sunder

sun-der

verb :: To disunite in almost any manner, either by rending, cutting, or breaking; to part; to put or keep apart; to separate; to divide; to sever

To part; to separate.

A separation into parts; a division or severance.

To expose to the sun and wind.

“Notwithstanding terrifically wide sweep (some thirty feet or more) and the its hissing vigor of its descent, sufficient to sunder these very walls of iron, still the fraying of my robe would be all that, for several minutes, it would accomplish.” — Poe, Edgar Allan

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Creativity : Children

Most people would agree that children are generally more creative than adults. Children draw more, ask more questions and come up with interesting ideas. There are two commonly held theories about why we lose our creativity as we age.

The first theory is that as we age, we become more and more aware of practical constraints such as gravity or economics. Working within these constraints prevents us from fully utilizing our imaginations. We must suspend our disbelief in order to be mentally playful.

The second theory is that our culture socializes creative properties out of people. When we are young we are encouraged to draw and play, but as we get older more emphasis is placed on more cerebral activities such as math and reading. Children are slowly trained that being able to do arithmetic is more important than being creative.

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Memory : Alzheimer’s Prevention II

Mental exercise is one way to help prevent Alzheimer’s. Another means of prevention is to remain physically fit throughout life. All of the organs in the body benefit from being physically fit, including the brain. One Harvard study of more than 18,000 participants found that people who got the most exercise showed less mental decline than those with sedentary lifestyles.

Physical exercise increases blood flow to the brain and keeps it working efficiently by stimulating the production of neurotrophins. This is especially true for the hippocampus which is the first area of the brain affected by Alzheimer’s disease. This increased blood flow and neuronal efficiency can reduce the natural shrinkage that occurs in the brain as it ages. An average person will lose between 15% and 25% of brain cells by the age of 90. Those people who get the most exercise will be at the bottom of that scale, while those people who never exercise will be at the top of that scale.

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