Cyril FRESILLON

At the Cité Internationale de la Tapisserie (International Tapestry Museum) in Aubusson, scientists are studying pieces made of silk and wool thread, coloured by natural substances several hundred years ago. They try to determine the recipes used by the original dyers of the time by using methods allowing them to go back in time.

Nanoplastics with a size of less than a thousandth of a millimetre are the finest form of plastic pollution. The Pepsea research project focusses on a type of nanowaste that is still poorly understood. Researchers chose Guadeloupe to study its impact on the environment. The island is exposed to the ocean and the North Atlantic Gyre making it an area of plastic accumulation. It is the perfect field of study for researchers who are going to explore its beaches and mangroves. They investigate the…

Plastic waste that accumulates in the ocean slowly deteriorates into smaller pieces. Scientists now estimate the amount of microplastics under the sea at 5000 billion tons, but the amount of nanoplastics remains unknown. That is why a French team decided to collect samples from the Mediterranean Sea to detect traces of nanoplastics. First, they concentrated the water by ultrafiltration and then used a dynamic light scattering technique to identify the nanoparticles. The final step was to resort…

Violaine Sebillotte Cuchet, professor of Ancient History at the University of Paris 1 Panthéon-Sorbonne, is a specialist in the Ancient Greek world of the Archaic and Classical periods (8th B. C. - 4th B. C.). She takes a special interest in gender issues and analyses the discourses and practices of that time, which provide information on the meaning of gender differences as perceived by the Ancients. She studied more specifically the case of Artemisia of Halicarnassus, a warrior woman who…