Between the sleepless Night and the Fiac slip eight days of pure happiness : the Festival of science. Exhibitions, lectures, and science demonstrations of all kinds punctuate a week which illuminates through the shining eyes of children and adults excited for the opportunity. This feast has just ended with a twinge all the same. It will have to wait until next year to celebrate again the physics, chemistry or even astronomy. And yet, unlike Christmas or birthdays for which we incur a planning calendar required, it is not yours...