The first game consisted of a playful, accelerated search for a balloon hidden in a box using Bayesian optimization, a machine learning technique. Visitors of our stand could probe a box with needles while telling the active learning model which positions were probed. The more positions were tested, the better were the recommendations for a successful hit.

For the second game “Shape Memory Mode” we presented a crystal structure model with NiTi shape memory wire presenting “chemical bonds” and plastic balls for “atoms”. Our visitors could watch that after applying deformation to the lattice, the material remembered its original shape when heat was supplied with a heat gun.

Thank you Luca, Ruiwen, Wenling and Bo for actively supporting the interest in material science!