PlanckPlay is a 3D-printed model of the sixteen tetrahedra making up Planck's hexadecachoron, a four-dimensional metamodel of physics. It shows how physical theories connect and traces them back to the four fundamental constants G, c, h and k, introduced by Max Planck in 1900. Developed by José Cojal Gonzalez, each puzzle piece stands for a physical theory or key area of physics, inviting visitors to discover the connections themselves. Found in the library's youth area. No registration needed.

Details can change — check the event’s website before you go.