Let me show you the cleverest Easter egg Pixar has ever kept. As you know, Pixar company has a famous class called A113. Even legendary names such as Tim Burton were a student of this class. That's why A113 was always secretly placed in a scene in all Pixar films. The situation is much different in elemental animation. In this scene there are letters A H and Al. The letter H represents Hydrogen with atomic number 1. Al represents Aluminum with atomic number 13. So, when we combine these, we reach A113. In an animation which is about elements, it was really great that they kept this famous Easter egg according to the periodic table.