Du Temps, de l'Espace et de l'Eau - Canal-uved Alain DORESSOUNDIRAM est astrophysicien au Laboratoire d'études spatiales et d'instrumentation en astrophysique de l’Observatoire de Paris. Spécialiste des petits corps du système solaire et de l’observation infrarouge, il est responsable d’un instrument sur la future mission spatiale vers Mercure, Bepi Colombo. Il enseigne l'astrophysique au sein de l'Unité de Formation et Enseignement de l'observatoire, participe au campus numérique et est très impliqué dans les actions de diffusion de la culture scientifique, en particulier vers le jeune public. Il est l’auteur de plusieurs ouvrages de scientifique. Ouvrages pour le jeune public : - Doressoundiram, A et Le Cocguen, R. Ouvrages pour les étudiants : - QCM UE3 Physique - Semestre 1: Organisation des appareils et des systèmes Kamel Boukheddaden, Alain Doressoundiram, Armelle Girard, Emmanuel Marcq Foucher (2011), collection PAES SUP'FOUCHER
Scientist Peyton Robertson has 3 patents pending. He is also 12. When 12-year-old Peyton Robertson sees a problem, he is going to fix it. So when the young scientist noticed a perennial problem in his hometown of Fort Lauderdale, Florida –flooding during the region’s nasty hurricane season – he set to work building a better sandbag. Peyton’s sandbag contains an expandable polymer that’s lightweight and easy to transport when dry, but that becomes a dense solution to hold bags firmly in place when it’s wet. He also added a dash of salt – an addition that makes the solution in the bags heavier than approaching seawater. And to eliminate the gaps between sandbags that tend to let some water through, he designed an interlocking fastener system that holds the bags in place as the polymer expands. The ingenious sandbag (and Peyton’s “commanding delivery, innovative thinking, and sound grasp of the scientific method”) won him first place in the prestigious Discovery Education 3M Young Scientist Challenge. In fact, he currently has three pending patents.
Vidéo angle d'incidence rayons du Soleil