Dear All, Here is the title and abstract of tomorrows talk: Speaker: Johan Aaberg Title: "Depletion forces" Time: 5 pm Place: IFW D42 Abstract: In lack of anything more exciting to say I will talk about depletion forces. I am not going to spoil the story by telling in advance what it is about, but I will keep the talk short, light, and purely classical. Cheers, Dejan