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Matter
Wood, stone, iron and lead: what do we know about the materials used to build Notre-Dame and the construction techniques employed at the time? Should they be replicated? And which tests that were previously impossible to carry out are now within reach?
Article
12.21.2019
Invisible, and yet everywhere. Mercury is present in the atmosphere, oceans, and even in our plates! Since the adoption of the Minamata Convention on Mercury in 2013, 128 countries have been striving to limit the spread of this pollutant. However, the complex...
Slideshow
12.13.2019
The great organ, which was partially spared by the fire, is not the only thing that resounds within Notre-Dame. CNRS researchers are trying to reconstruct the cathedral's sound environment during different periods, providing a resource for assessing the...
Article
12.03.2019
Fifty years after Neil Armstrong and Buzz Aldrin's historic moonwalk, scientific instruments deployed on the Moon's surface continue to supply valuable data to scientists. Using these reflectors still in place on the Moon's surface, a team of researchers and...
Video
11.25.2019
See also
10.21.2019
Whether they track animal populations, monitor air quality, or optimise our energy consumption, sensors are increasingly being used to study the environment. A great deal of research has been...
09.24.2019
Discover the 20 photos that won the La preuve par l’image (The Proof is in the picture) competition. The competition, which was organised this year by the CNRS and the francophone association for...
08.05.2019
Is art truly eternal? Paintings by History's greatest masters are affected by the passage of time. But scientists and curators have joined forces to figure out exactly what is causing the ageing...
Slideshow
08.02.2019
Wood is a living material. And this shows in paintings on wood, slowly cracking, bending and warping—the price to pay for being on public display under conditions that are often far from ideal. In...
Article
07.03.2019
On July 3, the CNRS Gold Medal was awarded to Thomas Ebbesen. We look back at the exceptional career of this specialist of light.
Article
05.24.2019
Whether they come from plants or animals, sugars are increasingly replacing petroleum-derived products—a success they owe to their striking properties. CNRS News takes a closer look at these...
Opinion
05.10.2019
Would an antimatter orange have fallen on Newton's head like an apple? Physicists have not provided a serious answer to this question, for lack of being able to test it.
04.26.2019
The relation between matter and antimatter has puzzled scientists and sparked experiments on a gigantic scale. The physicist Marie-Hélène Schune explains.