Champion nano-rust for producing solar hydrogen. 09.07.13 - Water and some nano-structured iron oxide is all it takes to produce bubbles of solar hydrogen. EPFL and Technion scientists just discovered the champion structure to achieve this In the quest for the production of renewable and clean energy, photoelectrochemical cells (PECs) constitute a sort of a Holy Grail. PECs are devices able of splitting water molecules into hydrogen and oxygen in a single operation, thanks to solar radiation.
"As a matter of fact, we've already discovered this precious chalice, says Michael Grätzel, Director of the Laboratory of Photonics and Interfaces (LPI) at EPFL and inventor of dye-sensitized photoelectrochemical cells. Today we have just reached an important milestone on the path that will lead us forward to profitable industrial applications. " This week, Nature Materials is indeed publishing a groundbreaking article on the subject.
The charge transport properties of individual nanostructures is studied with a transmission electron microscope. Nanofabricated Chips Accelerate Electrons at a Rate 10 Times Higher than Conventional Technology. The key to the accelerator chips is tiny, precisely spaced ridges, which cause the iridescence seen in this close-up photo. Matt Beardsley/SLAC Researchers from the SLAC National Accelerator Laboratory and Stanford University have used nanofabricated chips of fused silica to accelerate electrons at a rate 10 times higher than conventional particle accelerator technology. Menlo Park, California — In an advance that could dramatically shrink particle accelerators for science and medicine, researchers used a laser to accelerate electrons at a rate 10 times higher than conventional technology in a nanostructured glass chip smaller than a grain of rice. The achievement was reported today in Nature by a team including scientists from the U.S.
Department of Energy’s (DOE) SLAC National Accelerator Laboratory and Stanford University. This animation explains how the accelerator on a chip uses infrared laser light to accelerate electrons to increasingly higher energies. How It Works Publication: E. Une oreille bionique. Par Emilie Cler - 07/12/2010 Un jeune chercheur montréalais a conçu un bouchon d'oreille «intelligent» qui stoppe les sons dérangeants et amplifie les autres. Jérémie Voix a de la vision, mais c’est notre ouïe qui l’intéresse. L’ingénieur acousticien n’avait que 16 ans quand il a imaginé un petit amplificateur pour un ami de son grand-père un peu dur de la feuille.
Aujourd’hui professeur à l’École de technologie supérieure de Montréal, il a mis au point un bouchon d’oreille «intelligent». Cette innovation, réalisée en collaboration avec l’entreprise montréalaise Sonomax, a été testée avec succès par des centaines de travailleurs d’une usine de voitures de Los Angeles. L’idée de base est simple. «Contrairement à ce qui est indiqué sur la notice, les bouchons de mousse ne diminuent pas le bruit ambiant de 29 décibels (dB) mais seulement de 7 dB.
D’où l’idée astucieuse de couler directement du silicone à l’intérieur d’une fine membrane, dans l’oreille du travailleur. Par Marine Corniou. Jaimie' Creations. Home Howdy, I love to build stuff. 'been doin' it since I was.... hmmm, well I can't remember that far back, so its been a while. Its probly my favourite thing to do (well, that and exercising) 'cause if I build something it never yells at me for no reason, or eats all my french fries!
Hee hee, well who knows why I like it so much, I just do. Feel free to ask me any questions you may have, e-mail me at: Joogles@hotmail.comor ICQ me at 29020835 1. Mpg videos of operation. top 2. 3. This is the first Fish-boat... 4. Top 5. 6. 7. Mail me something Joogles@hotmail.com. Homemade Mecha Is Lonely Without Other Mechas to Beat Up On. ランドウォーカー.