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Las corrientes de los océanos, a partir de datos de todas las zonas del globo, condensadas en una relajante animación HD 1080p con música de fondo. Para disfrutar y relajarse un rato.
El océano perpetuo | Microsiervos (Ciencia)
For the First Time, a Message Sent With Neutrinos | Popular Science
Neutrino Message University of Rochester In a major step for truly wireless communications, scientists have figured out how to send a message with neutrinos , transmitting a single word through 780 feet of bedrock and translating it at the other end. It’s just a first step, but the message suggests that someday, submarine crews and maybe average civilians will communicate by sending chargeless, ghostly particles through any obstacle.
Une Pompéi végétale de 300 millions d’années exhumée en Chine | Passeur de sciences
C'est une jolie lucarne temporelle qu'une équipe sino-américaine vient d'ouvrir dans la dernière livraison des Proceedings de l'Académie des sciences des Etats-Unis. Une fenêtre sur la végétation de la Terre telle qu'on pouvait la trouver il y a presque 300 millions d'années, au début du Permien, avant même l'apparition des dinosaures. C'est sur une véritable Pompéi végétale que sont tombés ces chercheurs, au beau milieu d'une mine de charbon chinoise, dans la province autonome de Mongolie intérieure. Pour ceux qui auraient oublié leur histoire romaine, je rappelle qu'en 79 de notre ère, Pompéi et Herculanum furent ensevelies sous les matériaux éjectés par une éruption du Vésuve. Ce fut une catastrophe pour les habitants mais les couches de cendres, de pierres et de boues volcaniques eurent pour effet de figer les sites dans le temps et de les conserver tels qu'ils étaient il y a deux millénaires. Il est arrivé exactement la même chose sur le site chinois de Wuda.Breathtaking NASA Photos
Unless you can afford a ticket to space ($200,000 with Virgin Galactic ), the only way we will ever be able to clearly view our planet in its entirety or any distant galaxies is through the photographs released by NASA (The National Aeronautics and Space Agency). So, here are a few of my favorite pictures taken by NASA from its various space programs. You will find them breathtaking. The space shuttle Endeavour over the colorful horizon of earth. Taken by one of the Expedition 22 crew member before the shuttle was docked with the International Space Station. The International Space Station (ISS) is the largest human-made object ever to orbit the Earth.
589217_scale_of_universe_enhanced
4chan is a simple image-based bulletin board where anyone can post comments and share images. There are boards dedicated to a variety of topics, from Japanese animation and culture to videogames, music, and photography. Users do not need to register an account before participating in the community. Feel free to click on a board that interests you and jump right in!
© D.R. - Solvay Avec la mise en service d'une pile à combustible de 1MW, Solvay entend faire la démonstration à l'échelle industrielle de la technologie hydrogène. Et placer ses membranes en polymère dans la course à la voiture à hydrogène.
Solvay met en service une pile à combustible d’un mégawatt - Chimie
The Willamette Meteorite measures about the size and shape of a Volkswagen Bug and weighs some 15 tons. It seems such a massive chunk of iron and nickel would stay put once it smashed into the Earth.
The Willamette Meteorite
(PhysOrg.com) -- Molybdenite, a new and very promising material, can surpass the physical limits of silicon. EPFL scientists have proven this by making the first molybdenite microchip, with smaller and more energy efficient transistors. After having revealed the electronic advantages of molybdenite, EPFL researchers have now taken the next definitive step. The Laboratory of Nanoscale Electronics and Structures (LANES) has made a chip, or integrated circuit, confirming that molybdenite can surpass the physical limits of silicon in terms of miniaturization, electricity consumption , and mechanical flexibility . “We have built an initial prototype, putting from two to six serial transistors in place, and shown that basic binary logic operations were possible, which proves that we can make a larger chip,” explains LANES director Andras Kis, who recently published two articles on the subject in the scientific journal ACS Nano .
Mobile: First molybdenite microchip
A sa manière, Raymond Devos avait eu l'intuition de la nature ambiguë du vide, en expliquant dans un sketch que " rien ... ce n'est pas rien. La preuve c'est qu'on peut le soustraire. Exemple : Rien moins rien = moins que rien !
Des physiciens créent de la lumière à partir du vide | Passeur de sciences
Mobile: New creatures from the deep identified
(PhysOrg.com) -- Strange deep sea creatures discovered by Aberdeen researchers have been confirmed as three new species previously unknown to science. DNA analysis has established that creatures captured by scientists from the University of Aberdeen’s Oceanlab during a voyage to the Mid Atlantic Ocean are members of the Torquaratoridae; a recently discovered family of acorn worms. The identification of the delicate creatures – which could not be collected using the primitive deep sea grabs and dredges of previous centuries – may provide new insight not only into life in the deep sea but the evolution of life on earth. The Torquaratoridae, which were captured last year using a remotely operated vehicle launched from the RRS James Cook , have no eyes and no tail but manage to crawl along the sea floor harvesting food that has fallen from the surface.Ampliar foto El lanzador Zenit-2 siendo erigido en Baikonur ROSKOSMOS Ampliar foto
Un fallo impide que la estación rusa Fobos-Grunt enfile rumbo a Marte - RTVE.es
Mobile: NASA releases radar movie of asteroid 2005 YU55
Nov 09, Space & Earth/Space ExplorationCette adresse e-mail n'est pas valide ou ne correspond pas à celle de votre abonnement et / ou de votre inscription au Monde.fr. N.B. : si votre adresse e-mail est de la forme "@club.lemonde.fr", veuillez contacter notre service clients .
Cellules souches : cure de jouvence pour centenaires - LeMonde.fr
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