This year's European Research Night in Madrid (see [3]) was oriented to the very young public (at least this how the Universidad Autónoma de Madrid understood it, see [4]).
Our group, that is generously funded by the EU, participated this year again to this event (see here for our last year's input), this time with Elena, Carlos & Camilo impersonated herself, Schrödinger & Newton, respectively, to explain the wavefunction collapse.
Explaining such a concept that is still not very well understood by the most experts in the field, to young people is a real challenge. This was brilliantly tackled with things that really collapsed when probed hard enough: balloons.
This is a gallery of the event.