What Causes A Foreign Accent?

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Jan 152018
 

Linguist Arika Okrent expalins while an artist illustrates on a whiteboard.

The human vocal tract can produce thousands of different sounds but languages use only a tiny subset of them. What happens when you try to speak a language that uses a different subset from your own?

 

 

Rule Of 72

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Jan 112018
 

Estimate how long it will take for an investment to double at any given interest rate with the “Rule of 72”. Remember, the Rule of 72 only applies to compound interest, not simple interest calculations.

Rule Of 72

Teenage Brains Can’t Tell What’s Important And What Isn’t

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Jan 082018
 

This is why it is important that kids experience failure and consequences for their lack of action… instead of participation trophies.

People have to learn how to apply themselves in order to be successful.

From New Scientist:

Teenagers may know full well how important final exams are – but that won’t stop some putting in minimal effort. This may be because their brains aren’t developed enough to properly assess how high the stakes are, and adapt their behaviour accordingly.

Adults are generally pretty good at being able to tell when a situation is worthy of extra time or concentration. Research has found that, when potential rewards or losses are higher, for example, adults will perform better on tasks. But this doesn’t seem to be the case for adolescents.

Catherine Insel, at Harvard University, and her team asked adolescents between the ages of 13 and 20 to play a game while lying in an fMRI brain scanner. In some rounds of the game, participants could earn 20 cents for a correct response, while an incorrect one would cost them 10 cents. But in rounds with higher stakes, correct responses were worth a dollar, and wrong answers lost the participants 50 cents.

Read more…

 

 

Jan 082018
 

If you live in the United States, you might have recently gotten a credit card with a microchip on it. But what does this chip do that makes it any different than the magnetic strip on the back of the card?

 

 
via SciShow