In *The Wizard of Oz*, the Scarecrow shows us how intelligent he has become by (mis)quoting Pythagoras’ theorem:

*“The sum of the square roots of any two sides of an isosceles triangle is equal to the square root of the remaining side.”*

Homer Simpson does a similar thing when he puts on a pair of glasses and tries to convince himself that he is smart.

It would seem that the lasting legacy of Pythagoras of Samos is the formula linking the sides of a right-angled triangle. It could, however, be argued that the actual legacy of Pythagoras is much greater—it’s more than the formula used in contrived situations of ladders being rested against walls or finding the answer to that most fundamental of questions: would the pencil stick out of the top of the pot? His legacy is around us every day…