The Math Behind PIzza

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The Math Behind PIzza
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The math of why bigger pizzas are such a good deal is simple. A pizza is a circle, and the area of a circle increases with the square of the radius.

So, for example, a 16-inch pizza is actually four times as big as an 8-inch pizza.

And when you look at thousands of pizza prices from around the U.S., you see that you almost always get a much, much better deal when you buy a bigger pizza.
See more at NPR

A Paralyzed Teen in a Brain-Controlled Exo-Suit Will Kick Off the World Cup

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A Paralyzed Teen in a Brain-Controlled Exo-Suit Will Kick Off the World Cup
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The exoskeleton will support the lower part of the body and enable the paralyzed wearer to walk using wireless electrodes attached to the head that collect brainwaves, which then signal the suit to move.
See more at CNET