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Toute l'actus du CNRS
  1. A start-up for much faster batteries
    Two years after the first battery prototype using sodium ions1 in a standard industrial format was designed, the start-up Tiamat has been created to design, develop and produce this promising technology. This could counter some of the limits of the lithium-ion batteries that dominate the market today, such as recharge rate, lifetime and production cost. Specifically, sodium-ion batteries might allow mass storage of intermittent renewable energies (wind or solar) or equip electric vehicles. Located in Amiens, this company came out of the French network for electrochemical energy storage (RS2E2) supported by CNRS. Today it has several tens of functional prototypes, and hopes to launch larger scale production by 2020.
  2. New AGLAÉ: A global benchmark for preserving heritage
    To solve mysteries about ancient works or authenticate heritage objects, specialists often need support from science. Since 1988, AGLAÉ has been installed at the Centre de Recherche et de Restauration des Musées de France (C2RMF, Palais du Louvre). It is the only particle accelerator in the world that is exclusively dedicated to studying heritage objects. Today, the “New AGLAɔ installation improves that performance: automates the beam line, optimizes chemical imaging on the micrometer scale, and enables 24-hour analysis. In association with CNRS, the project is supported by the Ministry of Culture, Investissements d'Avenir, and the city of Paris. The new AGLAÉ was inaugurated on November 23, 2017 by Françoise Nyssen, Minister of Culture and Frédérique Vidal, Minister of Higher Education, Research and Innovation.
  3. Towards better understanding of railway ballast
    SNCF engineers have been using mathematical models for many years to simulate the dynamic behavior of railways. These models have not been able to take into account large portions of the track have been extremely limited at modelling ballast, the gravel layer located under railway tracks. This is why SNCF Innovation & Recherche asked for help from specialists in wave propagation for all types of media and at varied scales: CNRS and INSA Strasbourg1 researchers. Together, they have shown that a large part of the energy introduced by a train passing is trapped by the ballast. Their work, published in the November issue of Computational Mechanics, shows that this trapping phenomenon, which is very dependent on train speed, could cause accelerated ballast degradation in railway tracks.
  4. James Webb Space Telescope (Webb) sees through the cold
    The James Webb Space Telescope (Webb) has reached a key milestone with the completion of cryogenic tests on its telescope and instruments. Working within an international consortium, France, in particular the CEA, the CNRS and the CNES, has played a key role in the development, for the scientific successor to the Hubble and Spitzer space telescopes, of the Mid-InfraRed Imager (MIRIM) that will enable it to see wavelengths of 5 to 28 microns.
  5. Archaeology: Medieval treasure unearthed at the Abbey of Cluny
    In mid-September, a large treasure was unearthed during a dig at the Abbey of Cluny, in the French department of Saône-et-Loire: 2,200 silver deniers and oboles, 21 Islamic gold dinars, a signet ring,1 and other objects made of gold. Never before has such a large cache of silver deniers been discovered. Nor have gold coins from Arab lands, silver deniers, and a signet ring ever been found hoarded together within a single, enclosed complex. Anne Baud, an academic at the Université Lumière Lyon 2, and Anne Flammin, a CNRS engineer—both from the Laboratoire Archéologie et Archéométrie (CNRS / Université Lumière Lyon 2 / Claude Bernard Lyon 1 University)—led the archaeological investigation, in collaboration with a team of 9 students from the Université Lumière Lyon 2 and researchers from the Maison de l'Orient et de la Méditerranée Jean Pouilloux (CNRS / Université Lumière Lyon 2).
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