A special highlight is the construction of a floating ball, as the best way to learn is through experimentation! The subject often referred to by students as "puzzle technology" is considered a challenging topic in many engineering and natural science degree programs. Control engineering touches on many areas of technology, medicine, and nature, and can be very interesting and exciting! Without control engineering, many everyday objects would be unimaginable, such as cars with ABS, ASR, ESP, Drive-By-Wire, or the Euro-6 engine control with exhaust gas recirculation. Control engineering is a key technology for energy saving. In many textbooks, this discipline is often taught in a dry manner and is obscured by mathematical complexities, making it difficult for interested readers to access.