On July 5-6, 2008, for the second time, our NCCR participated in the Geneva popular-science event “La Nuit de la Science”, our theme being “le temps d’une émotion”. The way in which people perceive time is highly influenced by culture and language, as our researchers showed at their stand. The visiting public could take part interactively in an experiment on control of facial expressions of emotion over time, which provided lots of fun. Our historians showed the visitors how ancient civilisations dealt with emotions. Our linguists pointed out how the way we talk about time affect the way we feel about it. Finally, the contemporary phenomenon of violence and its emotional after-effects was illustrated from a legal, social and psychological point of view.