Wave particle duality at the workshop - walking droplet interfering with single slit

A bath of silicon oil is vibated and oil droplets are deposited on the surface. Thanks to the vibrations, the droplets do not coalesce, but bounce on the surface. For specific values of amplitude and frequencies, the droplet start to move forward by itself : while bouncing, it create waves with which it interacts. This object has been called a walker, and exhibits properties reminiscent of an elementary particle, because it is at the same time a particle (the droplet) and a wave (The local standing wave p