08 – From Steam to Screams: the Mystery of the Overheated Cascade

Author of this question: Alberto Leva, Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, Italy Santa Claus finally decided to fulfil an old wish of his hardworking elves: an outdoor swimming pool complete with a temperature-controlled waterfall. Nothing says … Continue reading08 – From Steam to Screams: the Mystery of the Overheated Cascade

06 – Perfect System or Christmas Chaos? The Dolls and Dresses Puzzle

Author of this question: Steffi Knorn, Fachgebiet Regelungstechnik, Technische Universität Berlin, Germany Dolls are a classic Christmas gift, so it’s no surprise that part of Santa’s workshop is dedicated to making dolls and their dresses. Every morning, the two teams—the … Continue reading06 – Perfect System or Christmas Chaos? The Dolls and Dresses Puzzle

04 – Saving Christmas in Australia: the Upside-Down Tree Challenge

Author of this question: Steffi Knorn, Fachgebiet Regelungstechnik, Technische Universität Berlin, Germany Santa wants to make Christmas extra special for kids in Australia by creating an upside-down Christmas tree. However, the unusual design keeps tilting over, and without a solution, … Continue reading04 – Saving Christmas in Australia: the Upside-Down Tree Challenge