This year's Science Days at Europa-Park Rust were once again a great success and, as every year, the children and young people had the opportunity to immerse themselves in the fascinating world of science using very concrete objects - which they did very actively! This year, Prof. Stieglitz's groups from Biomedical Microtechnology had brought along a muscle-controlled robot arm as an exhibit. Using this example, the team at the booth explained to the young visitors what a human-machine interface is, how it works and what the current state of development of modern prostheses is. In personal conversations, there was also the opportunity to present the research program from the BrainLinks-BrainTools center and to gain interest in the topic. "The enthusiasm of the young people for our research field was evident when they tried out the robotic arm. All volunteers were able to experience an actual, simplified application of biomedical microtechnology with our exhibit while having a lot of fun," Alina Kohler, PhD student from the BMT chair at IMBIT, is happy to report.