Editor’s note: Due to seasonal travel issues, the Monday Microsofty could not be published until today. To be a good computer scientist or engineer, you have to be a nerd. Nerds like me are offended by flawed portrayals of mathematics and physics in movies and television.  For example, in the classic 1939 Wizard of Oz Movie, when the Scarecrow got his brain, he said “The sum of the square roots of any two sides of an isosceles triangle is equal to the square root of the remaining side.” This mistake ruins what is an otherwise wonderful movie for me. I can accept flying monkeys, witches riding brooms and Lollipop Guild Munchkins. But not bad math. The Scarecrow was trying unsuccessfully to quote Pythagoras’s theorem: “In a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.” By contrast, the TV series The Big Bang Theory and its spin-off Young Sheldon, are fairly accurate in their math and physics. (Their treatment of Christianity is embarrassingly shallow.) …