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BigDog Evolution

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Robotique, intelligence artificielle, vie artificielle, nouvelles sciences, Europe Robot brosse à dent De Wikidebrouillard. Article incomplet en cours de rédaction Présentation de l'expérience Comment peut-on faire se déplacer une brosse à dent? Matériel brosse à dent avec des poils croisés vibreur de téléphone portable pile bouton (LR43) colle (super glue de préférence) ou adhésif double face cutter tournevis L'expérience Lien vers Dailymotion pour voir la video ou laisser un commentaire. La manipulation Commencer par démonter le téléphone pour récupérer le vibreur. Que voit-on ? On voit la brosse à dent se déplacer, sans jamais être bloquée. Explications De manière simple On voit le poids excentré monter et descendre autour de l'axe du moteur. Questions sans réponses Pourquoi est-il difficile de faire tenir la brosse à dent debout une fois le vibreur allumé ? Allons plus loin dans l'explication Liens avec d'autres expériences Expériences sur Wikidébrouillard Autres expériences article sur evilscientist Applications : liens avec le quotidien Lieux propices à sa réalisation Catégories

RoboJelly, The Unmanned Underwater Vehicle That Uses Water For Fuel A researcher watches RoboJelly, an unmanned underwater vehicle that swims like a jellyfish and uses hydrogen from water as fuel. These are the kinds of jellyfish you don’t need to be afraid of. They look and swim like jellyfish, but they’re actually water-dwelling fuel cells attached to an artificial muscle, and they might just be the answer to a powerful and cheap way to monitor the world’s oceans. RoboJelly is the creation of associate professor Shashank Priya and his team at Virginia Tech’s College of Engineering. This biomimetic robot has a bell-shaped, rubbery skin made of shape-memory alloys that return to their original shape after being bent. Except it doesn’t eat small sea critters to keep it going, but draws its energy directly from seawater. The bell is comprised of eight segments which are wrapped in carbon nanotubes, and the nanotubes are in turn coated with a platinum powder. A study on RoboJelly was published this past March in the journal Smart Materials and Structures.

Robot Videos Cheetah, le robot le plus rapide au monde Il y a quelques années, une vidéo sur le robot à quatre pattes Bigdog avait connu son petit succès sur le web. Elle avait même donné des sueurs froides à certains membres de la rédaction tant les mouvements étaient fluides et réalistes pour une machine. Mercredi dernier, le même frisson nous a parcouru l’échine en visionnant la vidéo de cheetah (guépard en anglais), le robot le plus rapide du monde. Cheetah a été enregistré à la vitesse record de 29 km/h sur un tapis roulant. Le développement futur de Cheetah doit lui permettre de zig-zaguer ou de s’arrêter très rapidement. Court, Cheetah, court ! Cheetah fait partie du programme M3 (pour Maximum Mobilty and Manipulation) financé par la fameuse DARPA (Defense Advanced Research Projects Agency), l’agence de recherche de l’armée américaine. WordPress: J'aime chargement…

New Video Of Army’s Alpha Dog Robot: “This Thing Is Awesome” No need to wait up. The speedier Alpha Dog now trots over flat terrain at 7 mph. For the last decade now Boston Dynamics has continuously provided some of the best two- and four-legged walking robots on the planet, and they’re continuing this trend with their latest version of Alpha Dog. Most articles about Alpha Dog go kind of like, “Impressive, but man, really loud.” The “pack mule” robots are meant to trudge alongside troops, hauling up to 400 lbs of gear so that soldiers don’t have to. In some (but not all) parts of the video it’s clear that this is a quieter robot. Its speed is improved too. DARPA program manager, Army Lt. DARPA will continue, over the next year and a half, to work with military personnel at different bases around the country, finishing with a Marine Corps Advanced Warfighting Experiment in which the robots will perform with troops in operational exercises. [image credits: Boston Dynamics via YouTube]

Microbial fuel cell A microbial fuel cell (MFC) or biological fuel cell is a bio-electrochemical system that drives a current by using bacteria and mimicking bacterial interactions found in nature. MFCs can be grouped into two general categories, those that use a mediator and those that are mediator-less. The first MFCs, demonstrated in the early 20th century, used a mediator: a chemical that transfers electrons from the bacteria in the cell to the anode. Mediator-less MFCs are a more recent development dating to the 1970s; in this type of MFC the bacteria typically have electrochemically active redox proteins such as cytochromes on their outer membrane that can transfer electrons directly to the anode.[1] Since the turn of the 21st century MFCs have started to find a commercial use in the treatment of wastewater.[2] History[edit] The idea of using microbial cells in an attempt to produce electricity was first conceived in the early twentieth century. Types[edit] Definition[edit] A soil-based MFC

Open Source Robotics Foundation Meet the Amazing Robots That Will Compete in the DARPA Robotics Challenge Wow. I mean, seriously, wow. We've been incredibly excited to see the progress that Boston Dynamics has been making on ATLAS in preparation for the DARPA Robotics Challenge, but we had no idea what to expect from the challenge's Track A teams, each of whom will be designing and building their own robot with capabilities comparable to what we've seen ATLAS do. Today, October 24, is opening day for the DARPA Robotics Challenge, or DRC. The first half of this is the hardware: DARPA is promising that an "advanced variation" of ATLAS (which is what the above picture is showing) will be ready to go by June of 2013, and will be provided to the advancing Track B and C teams (see our previous post on the DRC for more details on the tracks). As for the simulation software (pictured above), OSRF has been working very, very hard, and the DRC Simulator is currently available in beta version 1.0. Anyone can apply for Track C, but the Track B funded teams are as follows: Drexel University Raytheon

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