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Sciences & Technology
Veille sur les évolutions des sciences et des technologies
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Le MIT invente des cubes robotiques et modulaires

Le MIT invente des cubes robotiques et modulaires | Sciences & Technology | Scoop.it
Imaginez une petite colonie de robots cubiques capables de sauter et de monter sur eux-mêmes pour changer de forme en fonction de l’environnement. Telle est la dernière invention des chercheurs du MIT.
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A stunning video of these cubes on Youtube : http://youtu.be/mOqjFa4RskA

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Nobel Prize For Physics 2013

Nobel Prize For Physics 2013 | Sciences & Technology | Scoop.it
Francois Englert and Peter W. Higgs won the 2013 Nobel Prize For Physics on Tuesday for their research into the Higgs boson particle, nicknamed the "God particle."
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Jimmy, le robot open-source imprimé en 3D

Jimmy, le robot open-source imprimé en 3D | Sciences & Technology | Scoop.it
Le robot du 21ème siècle sera open-source et conçu uniquement à partir de l’impression 3D. En partant de ce principe, un chercheur d’Intel a développé le prototype de Jimmy.
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Hubert Reeves ausculte la crise écologique en sondant l'univers et l'humanité

Hubert Reeves ausculte la crise écologique en sondant l'univers et l'humanité | Sciences & Technology | Scoop.it
Le célèbre astrophysicien vient de sortir un nouvel ouvrage pour tenter de réconcilier la belle histoire du cosmos avec la moins belle histoire d'Homo sapiens...

Via Hubert MESSMER @Zehub on Twitter, Dominique VOLPE
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Ecosse : lancement du plus grand parc d’hydroliennes en Europe - Magazine GoodPlanet Info

Ecosse : lancement du plus grand parc d’hydroliennes en Europe - Magazine GoodPlanet Info | Sciences & Technology | Scoop.it
Le gouvernement écossais a délivré ce lundi son permis de construire au plus parc d’hydroliennes d’Europe qui sera construit au nord du pays et pourra fournir en électricité 40 000 foyers.
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How to Convert a Computer ATX Power Supply to a Lab Power Supply

How to Convert a Computer ATX Power Supply to a Lab Power Supply | Sciences & Technology | Scoop.it
Computer power supplies cost around US$30, but lab power supplies can run you $100 or more! By converting the cheap (free) ATX power supplies that can be found in any discarded computer, you can get a phenomenal lab power supply with huge...

Via sti2d_Laurent
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A nice way to use an old power supply, but be carefull.

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Antarctique : les plateaux de glace fondent aussi par dessous

Antarctique : les plateaux de glace fondent aussi par dessous | Sciences & Technology | Scoop.it
Les plateaux de glace de l'Antarctique perdent plus de glace que prévu par leur surface inférieure, immergée dans l'eau.

Via LeJournaldelaScience
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Electronics group to emphasize high-resolution music

Electronics group to emphasize high-resolution music | Sciences & Technology | Scoop.it

"Device makers and music companies plan to re-emphasize the benefits of better-than-CD sounding high-resolution music.[...]

 

High-resolution audio is among the categories that the Consumer Electronics Association plans to promote at the 2014 Consumer Electronics Show, scheduled for Jan. 7-10 next year in Las Vegas. In an announcement out today supporting "expanded" support for high-res audio, the CEA listed included device makers Sony Electronics, AudioQuest and iRiver, along with music labels such as Warner and Universal.

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OpenFab: A Programmable Pipeline for Multi-Material Fabrication

OpenFab: A Programmable Pipeline for Multi-Material Fabrication | Sciences & Technology | Scoop.it

"3D printing hardware is rapidly scaling up to output continuous mixtures of multiple materials at increasing resolution over ever larger print volumes. This poses an enormous computational challenge: large high-resolution prints comprise trillions of voxels and petabytes of data and simply modeling and describing the input with spatially varying material mixtures at this scale is challenging. Existing 3D printing software is insufficient; in particular, most software is designed to support only a few million primitives, with discrete material choices per object..."

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PHOTOS: All 16 Nobel-Winning Women Scientists

PHOTOS: All 16 Nobel-Winning Women Scientists | Sciences & Technology | Scoop.it

"

"Women make up a bit more than half of the world’s population, yet even in the most developed countries, men hold the lion's share of jobs in STEM (science, technology, engineering, and mathematics) fields. What's more, men take home most of the prestigious scientific awards. That includes the Nobel Prizes, widely considered the ultimate mark of scientific achievement.

 

Of the 357 people awarded a Nobel in the science categories — Physics, Chemistry, Physiology or Medicine, and Economic Sciences — only 16 have been women (see slideshow below).

 

What accounts for this discrepancy?..."

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To clean the air, Dutch scientists invent pavement that eats smog

To clean the air, Dutch scientists invent pavement that eats smog | Sciences & Technology | Scoop.it

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What if the solution to smog was right where the rubber meets the road?

 

Scientists in the Netherlands have found that installing special air-purifying pavement on city streets can cut air pollution nearly in half..."

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Precise atomic clock may redefine time

Precise atomic clock may redefine time | Sciences & Technology | Scoop.it

"The international definition of a second of time could be heading for a change, thanks to researchers who have demonstrated that an advanced type of ‘atomic clock’ has the degree of precision and stability needed to provide a new standard..."

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Atterrissage vertical : Le nouvel exploit de la sauterelle réutilisable de SpaceX

Atterrissage vertical : Le nouvel exploit de la sauterelle réutilisable de SpaceX | Sciences & Technology | Scoop.it
Guru Med

Voici le nouveau saut de la fusée GrassHoper (sauterelle) de la société privée américaine SpaceX. Un engin spatial réutilisable (en partie) a déjà inventé.

Via Goulu
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Direct link on Youtube : http://youtu.be/eGimzB5QM1M

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US government shutdown puts Antarctica penguin study on ice

US government shutdown puts Antarctica penguin study on ice | Sciences & Technology | Scoop.it
National Science Foundation announced Tuesday that it is putting its three Antarctic scientific stations in deep freeze
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'Higgsogenesis' proposed to explain dark matter

'Higgsogenesis' proposed to explain dark matter | Sciences & Technology | Scoop.it
Interactions of Higgs bosons and anti-Higgs in early Universe may also have caused asymmetry between matter and antimatter.

[...] Two physicists suggest that the Higgs had a key role in the early Universe, producing the observed difference between the number of matter and antimatter particles and determining the density of the mysterious dark matter that makes up five-sixths of the matter in the Universe.

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Changes Approved For 19 Chemical Elements

Changes Approved For 19 Chemical Elements | Sciences & Technology | Scoop.it
Nineteen elements on the periodic table — including gold, cadmium, arsenic and aluminum — are getting their atomic weights adjusted.
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Energie solaire: "record mondial" d'efficacité d'une cellule - Magazine GoodPlanet Info

Energie solaire: "record mondial" d'efficacité d'une cellule - Magazine GoodPlanet Info | Sciences & Technology | Scoop.it
Une équipe scientifique germano-française, incluant le groupe Soitec, a annoncé mardi avoir battu un nouveau "record" d'efficacité d'une cellule solaire, une "étape importante" pour une meilleure exploitation de l'énergie du soleil.
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i3 It is Innovation July/August 2013

i3 It is Innovation July/August 2013 | Sciences & Technology | Scoop.it

"Our fall issue of i3 is loaded with information on the latest technologies. Ultra High-Definition (Ultra HD) is an astonishing technology that is deeply changing the consumer video ecosystem. i3 talks with Chris Cookson, president of Sony Pictures Technologies for his view on where the market is headed. What’s more, CEA’s new report Ultra High-Definition – State of the Industry forecasts that these sets will pass the one million unit mark in 2015."

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Freak Space Weather Wreaks Havoc On Satellites

Freak Space Weather Wreaks Havoc On Satellites | Sciences & Technology | Scoop.it
High-speed eruptions of charged particles from the sun may be to blame for recent failures of satellites that people rely on to watch TV and use the Internet, scientists say.
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Sodium-ion battery cathode has highest energy density to date

Sodium-ion battery cathode has highest energy density to date | Sciences & Technology | Scoop.it
(Phys.org) —Although sodium-ion (Na-ion) batteries don't perform as well as lithium-ion (Li-ion) batteries, they have the potential to be a cheaper alternative.
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The Inside Story Of The World's Biggest 'Battery' And The Future Of Renewable Energy | CleanTechnica

The Inside Story Of The World's Biggest 'Battery' And The Future Of Renewable Energy | CleanTechnica | Sciences & Technology | Scoop.it

The largest battery in the world has sat quietly in George Washington National Forest along the Virginia-West Virginia border for nearly 30 years. A five-hour drive from the nation’s capital, it sits in the middle of the Appalachians, tucked behind the Blue Ridge Mountains.

 

Very few people in the urban areas that benefit from its power know of its existence, let alone its purpose. Talk to people that live and work a few miles away in Warm Springs, Virginia, and some will have a vague awareness but will readily admit that they don’t spare a thought for how electricity gets to their outlets. Dan Gessler, who works for Dominion Power, the company that operates the facility, put it simply: “I think the vast majority of the public doesn’t even know it exists, it’s up here in the middle of nowhere out in the mountains.”

 

The Bath County Hydro Pumped Storage Facility is not really a battery in the common sense of the term, but it is the largest pumped storage facility in the world. It stores a lot of energy, which helps 60 million people in 13 states (and DC) served by the regional transmission organization, PJM Interconnection. Quite often when someone in that huge area comes home from work and turns on the lights or switches on the TV, some of those electrons flowing down the power lines are coming from two lakes on a mountain in rural Virginia.

 

When Sean Fridley, the facility’s Station Manager, looks at the Upper Reservoir perched a thousand feet above his office, he doesn’t see drops of water. He sees a thousands-of-megawatts-deep block of power, a huge amount of stored potential energy — with more output than the Hoover Dam — that he can turn on with a flick of a switch.

 

“It’s one of the biggest engineering projects, ever,” Fridley said. “The machinery is huge.”

 

But can such a massive “battery” be drained by climate-fueled drought?

 

Click headline to read more--


Via Chuck Sherwood, Senior Associate, TeleDimensions, Inc
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Martin Jetpack

Martin Aicraft Company has been approached by over 2500 individuals interested in buying a Jetpack. In addition we have expressions of interest for over 3000...


Via Guillaume Decugis
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Guillaume Decugis's curator insight, August 21, 2013 8:08 AM
Motorcycles are so last century. This is what I need.
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50 UNBELIEVABLE Facts About Our Planet

50 UNBELIEVABLE Facts About Our Planet | Sciences & Technology | Scoop.it
Did you know that 75 percent of Earth's animal species could be extinct within the next three centuries? Or that up to a million species -- most of them still unknown to humans -- live in the world's oceans?
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How An Engineering Toy For Girls Went From Kickstarter To Bestseller

How An Engineering Toy For Girls Went From Kickstarter To Bestseller | Sciences & Technology | Scoop.it
Just because it didn't yet exist didn't mean demand wasn't there.

 

"Less than a year ago, Debbie Sterling’s concept of a toy that would teach engineering skills to little girls was nothing more than a prototype on Kickstarter..."

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Grande-Bretagne : Inauguration du plus grand parc éolien offshore au monde

Grande-Bretagne : Inauguration du plus grand parc éolien offshore au monde | Sciences & Technology | Scoop.it

"Le plus grand parc éolien offshore au monde, capable de fournir de l’électricité pour 470 000 foyers, vient d’être inauguré en Grande-Bretagne dans l’estuaire de la Thamis par David Cameron.[...] D’une capacité de 630 MW, ce projet devrait permettre, selon les spécialistes, d’éviter l’émission de 925 000 tonnes de CO2 chaque année..."

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