Eat some pie, write a 'pi-ku,' and wish Albert Einstein a happy birthday
                                
                                
                                    (Newser) -
                                    Today is 3/14, better known to the math-loving community as Pi Day, an international celebration of the irrational number and, for some, its almost-namesake dessert. In honor of the occasion, the iconic logo on the  Google homepage  has transformed into a collection of formulas that use pi. To celebrate, write...