At the exhibition matemilano
In the section "Topology" of the exhibition matemilano there are some threads with magnetic ends that can be used by visitors to create knots and recognize the knots represented on the posters hung all aroung the room.
© Sabrina Provenzi
foto di Sabrina Provenzi
The image belongs to the sections...:
Layout (From the exhibitions of matematita)
From the exhibition matemilano (Topology)
Topology (From the exhibitions of matematita)
Further information:
http://matemilano.mat.unimi.it