My holiday started more than a week ago but so far I've been focused on preparing for two workshops, one was in Geneva last Tuesday the other is in Istanbul at the weekend. In Geneva airport I noticed this interesting illuminated globe, it's an advert for a brand of cigarettes which is interesting since it's not even allowed to display cigarette packets in Norway. The globe is a spinning circle of LEDs that flash on and off at just the right moment to give the pattern you see. It didn't make me want to start smoking but it's a cool effect.