Math Tuesday: Proving the area of a circle with beads

Visual proof shows how we know the formula for the area of a circle

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Visual explainer video guy "minutephysics" delves into a bit of math this week, offering up an animated description of how to prove that the area of a circle is Pi times the square of the circle's radius. Check it out:

Now if I could just as easily remember the quadratic formula quickly, I'd be all set.

Keith Shaw rounds up the best in geek video in his ITworld.tv blog. Follow Keith on Twitter at @shawkeith. For the latest IT news, analysis and how-tos, follow ITworld on Twitter, Facebook, and Google+.

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