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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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Which Programming Languages Can You Use With Arduino?

Which Programming Languages Can You Use With Arduino? | Sciences & Technology | Scoop.it
Ready to try something different with your Arduino? You needn't be confined by programming in C. Take these alternative languages for a test drive. The Arduino IDE is core to the ethos behind the project — it's a UI that attempts to turn the daunting task of learning a programming language into something that anyone can take…
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Everything You Need to Know About Home Networking

Everything You Need to Know About Home Networking | Sciences & Technology | Scoop.it

"Setting up a home network is not as hard as you think it is. In fact, if your Internet Service Provider (ISP) gave you a router when you signed up for their services, you probably already have a home network.

In this guide, we’re going to explain the fundamentals of home networking; look at expanding your network to handle more devices; consider the different types of Internet connections; and guide you through some exciting scenarios..."

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A very comprehensive guide about home networking. Worth a read.

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This finger-mounted camera turns any book into an audiobook

This finger-mounted camera turns any book into an audiobook | Sciences & Technology | Scoop.it

"Camera technology goes far beyond taking beautiful images. One such example is FingerReader, a finger-mounted device developed by researchers at MIT’s Media Lab that enables the blind to read without the need for Braille..."


Via Kathleen Cercone, Lynnette Van Dyke
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Becky Roehrs's curator insight, March 17, 2:55 PM

This tool is fantastic! It's beta now, but what a difference this tool and software will make.

Scott Holcomb's curator insight, March 17, 3:52 PM

Very Cool!

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The revolutionary ion engine that took spacecraft to Ceres

The revolutionary ion engine that took spacecraft to Ceres | Sciences & Technology | Scoop.it

"The NASA spacecraft Dawn has spent more than seven years travelling across the Solar System to intercept the asteroid Vesta and the dwarf planet Ceres. Now in orbit around Ceres, the probe has returned the first images and data from these distant objects. But inside Dawn itself is another first – the spacecraft is the first exploratory space mission to use an electrically-powered ion engine rather than conventional rockets.

 

The ion engine will propel the next generation of spacecraft. Electric power is used to create charged particles of the fuel, usually the gas xenon, and accelerate them to extremely high velocities..."

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Magnetic nanoparticles enhance performance of solar cells

Magnetic nanoparticles enhance performance of solar cells | Sciences & Technology | Scoop.it
Magnetic nanoparticles can increase the performance of solar cells made from polymers - provided the mix is right. This is the result of an X-ray study at DESY's synchrotron radiation source PETRA III.
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Raspberry Pi 2 le nouveau Raspberry est sorti !

Raspberry Pi 2 le nouveau Raspberry est sorti ! | Sciences & Technology | Scoop.it
Peur des clones ? Alors que la Fondation laissait entendre après la sortie du Modèle B+ que rien ne bougerait côté matériel avant 2017, voici que sort ce matin le Raspberry Pi 2.

Via Aurélien BADET
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Laser pulses used to track motion of electrons in metals with attosecond precision

Laser pulses used to track motion of electrons in metals with attosecond precision | Sciences & Technology | Scoop.it

"It is easy to measure electric current. But it is extremely hard to watch the individual electrons which make up this current. Electrons race through the metal with a speed of several million meters per second, and the distance they have to cover between two adjacent atoms is very small. This means that tiny time intervals have to be resolved in order to watch the electrons dashing through the metal.

 

Measurements in Garching (Germany) and theoretical calculations at the Vienna University of Technology (Austria) have now made this possible. As it turns out, the motion of the electrons in the metal is remarkably similar to ballistic motion in free space. The results have now been published in the journal Nature..."

 

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Honda FCV Concept fuel-cell vehicle makes debut in Detroit

Honda FCV Concept fuel-cell vehicle makes debut in Detroit | Sciences & Technology | Scoop.it
Honda has taken full opportunity of the timing of the 2015 North American International Auto Show in Detroit this month to announce up and coming launches.
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How did we find the distance to the sun?

How did we find the distance to the sun? | Sciences & Technology | Scoop.it
How far is the Sun? It seems as if one could hardly ask a more straightforward question. Yet this very inquiry bedeviled astronomers for more than two thousand years.
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Thermoelectric power plants could offer economically competitive renewable energy

Thermoelectric power plants could offer economically competitive renewable energy | Sciences & Technology | Scoop.it
(Phys.org)—A new study predicts that large-scale power plants based on thermoelectric effects, such as small temperature differences in ocean water, could generate electricity at a lower cost than photovoltaic power plants.
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Research team announces new class of compounds that appear to be effective against malaria

Research team announces new class of compounds that appear to be effective against malaria | Sciences & Technology | Scoop.it
(Phys.org) —A large team of researchers with members from around the globe has announced that a class of compounds they've been studying (pyrazoleamides) appears to be successful in fighting malaria.
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The Easiest Raspberry Pi Media Centre, With RasPlex

The Easiest Raspberry Pi Media Centre, With RasPlex | Sciences & Technology | Scoop.it
The Raspberry Pi is a surprisingly capable little computer. In the past, we've show you how to make a Raspberry Pi home theatre with Rasbmc. Since we published that guide, an easier to use and better performing operating system has been released. Today I'm going to show you how with RasPlex; it's the easiest way…
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Toyota lance "Mirai", véhicule du futur roulant à l'hydrogène

Toyota lance "Mirai", véhicule du futur roulant à l'hydrogène | Sciences & Technology | Scoop.it
Le constructeur nippon Toyota, pionnier des véhicules hybrides, a franchi mardi une nouvelle étape en présentant une berline fonctionnant à l'hydrogène, premier modèle de ce type commercialisé à grande échelle dans le monde, même si ses objectifs restent modestes.
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« LedLiquid », la nouvelle lampe à huile

« LedLiquid », la nouvelle lampe à huile | Sciences & Technology | Scoop.it

Une entreprise familiale picarde a conçu une ampoule à LED révolutionnaire… baignant dans l’huile.

Plus lumineuse, plus économe, et inoxydable, la LedLiquid développée par Ledex France est désormais promis à un bel avenir. Elle a reçu le premier prix d’innovation du Salon des maires 2014.

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Pi Overdose? Here’s 5 Raspberry Pi Alternatives

Pi Overdose? Here’s 5 Raspberry Pi Alternatives | Sciences & Technology | Scoop.it

"It's time  for a change. You need a new challenge. Scattered around your house (or just your hobby space) are several Raspberry Pi computers, all performing different tasks. You might have a home security system powered by your Pi, or a media centre. Perhaps you converted an old non-wireless printer into a wireless printer using the Raspberry Pi, or you’re hosting a website, or even an automated Twitter account.

Put simply, you feel as though you have mastered the Raspberry Pi, that there is nowhere else left to go.

You’re wrong: take a look at these five alternatives, each of which can open a whole new world of DIY technology to you..."

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A Complete Guide to the March 20th Total Solar Eclipse

A Complete Guide to the March 20th Total Solar Eclipse | Sciences & Technology | Scoop.it
Totality! The 2012 total solar eclipse as seen from Australia. Credit and copyright: www.hughca.com.
The first of two eclipse seasons for the year is upon us this month, and kicks off with the only total solar eclipse for 2015 on Friday, March 20th.

Via Goulu
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Demonstration of "CrystEna" energy storage system

Demonstration of "CrystEna" energy storage system | Sciences & Technology | Scoop.it

"Hitachi America, Ltd., a wholly owned subsidiary of Hitachi, Ltd. and Demansys Energy, Inc. ("Demansys"), a smart grid technology company with offices in Connecticut and Troy, New York, announced today that they have completed construction and commissioning of a 1 MW Lithium Ion energy storage facility utilizing Hitachi's "CrystEna" compact container-type energy storage system and have started a demonstration project in Somerdale, New Jersey."

Read more at: http://phys.org/news/2015-02-crystena-energy-storage.html#jCp

 

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Raspberry Pi 2 Arrives: 6x Faster, An “Entry-Level PC” For $35

Raspberry Pi 2 Arrives: 6x Faster, An “Entry-Level PC” For $35 | Sciences & Technology | Scoop.it

"Grab your screwdrivers, makers! There’s a new, more powerful Raspberry Pi in town… The just announced Pi 2, which goes on sale today, adds a quad-core chip and double the memory to support more intensive processing tasks.

The Pi Foundation also reckons this sequel takes the Pi microprocessor “firmly into the PC space”, as they put it — in terms of power punch packed.

“With the Pi 1, there were people using it as a PC but you had to make allowances for the fact it was a $35 PC,” says Pi creator, Eben Upton, in an interview with TechCrunch. “The big difference with the Pi 2 is it’s a PC. It’s not a PC which is pretty good considering it cost you $35. It’s a PC that’s pretty good..."

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Perovskites provide big boost to silicon solar cells

Perovskites provide big boost to silicon solar cells | Sciences & Technology | Scoop.it
Stacking perovskites onto a conventional silicon solar cell dramatically improves the overall efficiency of the cell, according to a new study led by Stanford University scientists.
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Zinc oxide materials tapped for tiny energy harvesting devices

Zinc oxide materials tapped for tiny energy harvesting devices | Sciences & Technology | Scoop.it

"Today, we're surrounded by a variety of electronic devices that are moving increasingly closer to us - we can attach and wear them, or even implant electronics inside our bodies.

 

Many types of smart devices are readily available and convenient to use. The goal now is to make wearable electronics that are flexible, sustainable and powered by ambient renewable energy.

This last goal inspired a group of Korea Advanced Institute of Science and Technology (KAIST) researchers to explore how the attractive physical features of zinc oxide (ZnO) materials could be more effectively used to tap into abundant mechanical energy sources to power micro devices. They discovered that inserting aluminum nitride insulating layers into ZnO-based energy harvesting devices led to a significant improvement of the devices' performance. The researchers report their findings in the journal Applied Physics Letters..."

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The future is bright, the future is quantum dot televisions

The future is bright, the future is quantum dot televisions | Sciences & Technology | Scoop.it

 

The Consumer Electronics Show (CES) has arrived again, the world's largest consumer electronics and technology exhibition in Las Vegas, where manufacturers will show off the new technologies available in 2015 (...)

Korean electronics and display manufacturer LG has set the ball rolling by announcing its 4K ultra high-definition television displays (UHDTVs) that use quantum dot technology, an improved method for producing colour displays.

What exactly is a quantum dot?


Read more at: http://phys.org/news/2015-01-future-bright-quantum-dot-televisions.html#jCp

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Texas Instruments builds an alternative energy for the Internet of Things

Texas Instruments builds an alternative energy for the Internet of Things | Sciences & Technology | Scoop.it
The Internet of Things is nothing without batteries and plugs. But it's possible to build a sensor network that uses harvested energy that comes from changes in temperature, vibrations, wind and light, as Texas Instruments will demonstrate at the Consumer Electronics Show in January.
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An Infographic In Celebration of Computer Science Education Week

An Infographic In Celebration of Computer Science Education Week | Sciences & Technology | Scoop.it
It’s easy to take digital technology for granted these days. To students who were practically born with an iPad in their hands, it’s hard to imagine a time when a world of history and knowledge wasn’t just a few swipes away.
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Des rayons cosmiques plus riches que prévu

Des rayons cosmiques plus riches que prévu | Sciences & Technology | Scoop.it
Après plusieurs décennies d'études, les chercheurs se demandent encore de quoi sont fait les rayons cosmiques ultra-énergétiques, en provenance des confins de la Galaxie.
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Pour une éthique de la recherche en robotique

Pour une éthique de la recherche en robotique | Sciences & Technology | Scoop.it

"À l’occasion de la remise d’un rapport préconisant l’adoption de règles éthiques encadrant la recherche et la production robotiques, Raja Chatila, directeur de l’Institut des systèmes intelligents et de robotique, précise la nature et l’intérêt de telles règles..."

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