In this workshop, participants will learn how radiowaves can propagate through different media, including walls, and what components are needed to produce and detect these signals. During the workshop, each group will design and make some components such as the antenna and the mechanical support and integrate them to the electronics to build a wall penetrating radar. Finally, some testing. Each group will show the capabilities of its radar in detecting hidden objects. Under-16s must be accompanied by an adult, and both must have a ticket for this workshop.