Rosetta Mission PowerPoint presentation. PowerShow.com is a leading presentation/slideshow sharing website.
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The European Space Agency made history by successfully landing a robot on a comet in deep space.
Can you put the Philae lander in the right spot on a spinning comet in this interactive game? In real life, the landing took about seven hours, so we've sped things up for you. For a more in-depth look at the comet, the lander and the mission, read on below the game. This game won't work in browsers older than IE10. Best viewed in Safari, Chrome, Firefox, IE10+ The game is not currently available on the BBC News App.
After 10 years, and a journey of more than six billion kilometres, the Rosetta spacecraft sent its fridge-sized Philae lander down to Comet 67P/Churyumov-Gerasimenko. Philae bounced when it hit the comet and came to rest in an area where it could not get enough sunlight to recharge its batteries. But after seven months' radio silence, during which the comet travelled closer to the Sun, Philae woke up and contacted Earth. Philae has now been able to send back more data for analysis. Learning Dashboard. SVT en DNL. Sciences de la vie et de la terre - La réplication de l'ADN en version originale. Mis à jour le 15/03/2012 L'expérience de Meselson et Stahl est classiquement étudiée en classe de 1°S pour mettre en évidence le mode de réplication de l'ADN.
L'article original paru en 1958 est disponible en ligne et permet de faire travailler les élèves sur une production réelle de scientifiques et en anglais. mots clés : DNL, replication, adn, meselson, stahl, histoire des sciences, watson, crick Toutes les images de cette ressource sont cliquables pour pouvoir lire les légendes. Une rapide traduction apparait lorsque vous passez la souris sur les images. Rappels sur la structure de l'ADN et les modes de réplication envisagés en 1953 En 1953, James Watson et Francis Crick proposent un modèle pour la structure de la molécule d'ADN.
On y trouvera l'article original du 25 avril 1953. Food and Chemical Toxicology - Long term toxicity of a Roundup herbicide and a Roundup-tolerant genetically modified maize. This article has been retracted: please see Elsevier Policy on Article Withdrawal ( The journal Food and Chemical Toxicology retracts the article “Long term toxicity of a Roundup herbicide and a Roundup-tolerant genetically modified maize,” which was published in this journal in November 2012.
This retraction comes after a thorough and time-consuming analysis of the published article and the data it reports, along with an investigation into the peer-review behind the article. The Editor in-Chief deferred making any public statements regarding this article until this investigation was complete, and the authors were notified of the findings. Very shortly after the publication of this article, the journal received Letters to the Editor expressing concerns about the validity of the findings it described, the proper use of animals, and even allegations of fraud.
Immunology. Evolution. Fuels.