So, those mathematical equations that periodically pepper the blackboard on The Simpsons are real, thanks to the glut of math PhDs working on the show. Speaking of The Simpsons, check out this ranking of their best Halloween episodes. Lorde is the most precocious teen in music right now, so it’s no surprise that she too enjoys truffled entrees. Lastly, take a ride on an old-timey bike made out new-timey materials.