Conference : Can we measure time?
Yann Mambrini is director of Research in the CNRS and member of the scientific council of the CNRS. He is professor in University of Paris-Saclay and associate professor in University of Madrid. His research activities are concentrated on the Early Universe Cosmology, especially dark matter production after Inflation. He is working on space and time geometry, in the context of String Theories and Supergravity. He is the authors of more than 100 articles in international reviews, member of the Conseil de Laboratoire and Conseil de Pilotage of the University Paris-Saclay, awarded by several international grants.
Since the dawn of humanity, time and its measurement is a constant challenge. How can we link the projected shadow of a piece of wood 5000 years ago and an atomic clock? How human genius have freed himself from the constraints of the skies? Men managed to develop more and more sophisticated tools to lock in a cage this permanent « tic-tac », before realising he was himself becoming prisoner of the time. From Babylon to Princeton, passing through Paris and London, we will travel around the world and the epochs to understand what was the chalenges in this run to precision. Between longitude calculation to dominate the sees of the planet and the cartography in the 18th century, to the synchronisation of clocks in the 20th century, up to the birth of the theory of special relativity, we will tell the history of time measurement and the fight for its understanding.