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Nanowire battery can hold 10 times the charge of existing lithium-ion battery

Nanowire battery can hold 10 times the charge of existing lithium-ion battery
Stanford Report, December 18, 2007 Courtesy Nature Nanotechnology Photos taken by a scanning electron microscope of silicon nanowires before (left) and after (right) absorbing lithium. Both photos were taken at the same magnification. The work is described in “High-performance lithium battery anodes using silicon nanowires,” published online Dec. 16 in Nature Nanotechnology. Stanford researchers have found a way to use silicon nanowires to reinvent the rechargeable lithium-ion batteries that power laptops, iPods, video cameras, cell phones, and countless other devices. The new technology, developed through research led by Yi Cui, assistant professor of materials science and engineering, produces 10 times the amount of electricity of existing lithium-ion, known as Li-ion, batteries. "It's not a small improvement," Cui said. The greatly expanded storage capacity could make Li-ion batteries attractive to electric car manufacturers. Cui's battery gets around this problem with nanotechnology. Related:  Technology IITechnologies

Through a glass, clearly One of the most instantly recognizable features of glass is the way it reflects light. But a new way of creating surface textures on glass, developed by researchers at MIT, virtually eliminates reflections, producing glass that is almost unrecognizable because of its absence of glare — and whose surface causes water droplets to bounce right off, like tiny rubber balls. The new “multifunctional” glass, based on surface nanotextures that produce an array of conical features, is self-cleaning and resists fogging and glare, the researchers say. Ultimately, they hope it can be made using an inexpensive manufacturing process that could be applied to optical devices, the screens of smartphones and televisions, solar panels, car windshields and even windows in buildings. Photovoltaic panels, Park explains, can lose as much as 40 percent of their efficiency within six months as dust and dirt accumulate on their surfaces.

Breakthrough Nanotechnology Will Bring 100 Terabyte 3.5-inch Digital Data... Have you ever dream of 100 terabyte of data per 3.5-inch disk? New patented innovation nanotechnology from Michael E. Thomas, president of Colossal Storage Corporation, makes it real. Michael invented and patented the world's first and only concept for non-contact UV photon induced electric field poling of ferroelectric non-linear photonic bandgap crystals, which offers the possibility of controlling and manipulating light within a UV/Deep Blue frequency of 1 nm to 400 nm. It took him 14 years to find a practical conceptualization that would work to advance the storage industry; 3D Volume Holographic Optical Storage Nanotechnology, for which Michael holds the patents. • Join PhysOrg.com on Facebook! This invention and patents on a technique for changing matter at the molecular level is one of the World's only new enabling technologies, having many hundreds of electro-optic applications. “In 1974 I was making 5 Megabyte disk packs - the biggest at that time in the world.

Smartphone Biosensor Devised to Detect Toxins, Pathogens | Science Business Biosensor smartphone and cradle (Brian Cunningham, University of Illinois) Engineers at University of Illinois in Urbana created a system harnessing an iPhone’s camera to turn the phone into a biosensor that can detect proteins, bacteria, viruses, and toxins. The team led by engineering professor and entrepreneur Brian Cunningham published its findings in a recent online issue of the journal Lab on a Chip (paid subscription required). The biosensor is based on the ability of photonic crystals to alter the frequency of light, which are then captured by the smartphone’s camera. The materials in a photonic crystal block certain wavelengths, creating a gap in the wave bands. These crystals, and their corresponding band gaps, can be structured to control light energy in predictable ways, analogous to integrated circuits controlling the flow of electrons. The technician inserts the slide with the specimen sample into the cradle and the reflected light spectrum is measured. Read more:

iRing - The first motion controller for all your music apps and more Take Control Now control your music apps and effects without touching your device with the iRing™ touchless controller for iPhone, iPad and iPod touch. The new iRing uses hand gestures to control parameters of effects and other items in your music apps, allowing you to create stunning and dramatic music in an incredibly fun way by simply moving your hands in front of your device. iRing uses patented advanced image-recognition, motion control and precise geometric positioning technology to give you control of assignable parameters within your apps. Making music and creating killer real time effects for nonstop dance music and grooves is now easy and as simple as moving your hands… something you probably already do. The ABCs of XYZ Okay, so how does this thing work? Pretty slick, huh? Okay, but in practical terms… Let’s say for instance you want to control an audio effect. The Engine: iRing FX/Control App Music Judo What you get *Legal detail | Warranty

The Anonymous Tor Network Now Comes in a Box Photo via Flickr I have the Tor browser running on my computer, and it took me about two minutes to download. Once you're surfing through the network there are plenty of daunting technical options to dig into, but accessing the onion network for basic, everyday web use was as easy as clicking download, opening the program, and then struggling to remember all my no-longer-stored passwords. Still, Tor is best known as a niche tool for hackers, whistleblowers, criminals, activists, or folks with otherwise something to hide. So goes the thinking behind Safeplug, a new hardware adapter that basically puts Tor in a box. The adapter comes from hardware company Pogoplug, which announced its new product yesterday and hopes it will bring Tor to the mass market by offering more consumer-friendly access. Sure, more people using Tor would be great. Nor is the adapter necessarily easier to use than the downloadable Tor browser bundle.

An Interactive Infographic Maps The Future Of Emerging Technology Can speculation about the future of technology serve as a measuring stick for what we create today? That’s the idea behind Envisioning Technology's massive infographic (PDF), which maps the future of emerging technologies on a loose timeline between now and 2040. Click to enlarge. On it you’ll find predictions about everything from artificial intelligence and robotics to geoengineering and energy. In 30 years, it will also be a great reference for where we thought we might end up. You can download a PDF for free, or--should you want to track our progress toward artificial photosynthesis and space-based solar power by X-ing out accomplishments on your wall--purchase a poster version here.

justifiable existence How Do You Create A Culture Of Innovation? This is the third part in a series by Scott Anthony, author of The Little Black Book Of Innovation. It sounds so seductive: a “culture of innovation.” The three words immediately conjure up images of innovation savants like 3M, Pixar, Apple, and Google--the sorts of places where innovation isn’t an unnatural act, but part of the very fabric of a company. While culture is a complicated cocktail, four ingredients propel an organization forward: the right people, appropriate rewards and incentives, a common language, and leadership role-modeling. The Innovator’s DNA Has Four Components If you ask most people what makes a great innovator, the most common response is innate gifts from parents or a higher power. At the core is what the professors call “associational thinking.” Questioning: Asking probing questions that impose or remove constraints. Most organizations have people who follow these behaviors--even if they aren’t immediately obvious to senior leadership. Then it dawned on me.

Onion Pi Feel like someone is snooping on you? Browse anonymously anywhere you go with the Onion Pi Tor proxy. This is fun weekend project that uses a Raspberry Pi, a USB WiFi adapter and Ethernet cable to create a small, low-power and portable privacy Pi. Using it is easy-as-pie. If you want to browse anonymously on a netbook, tablet, phone, or other mobile or console device that cannot run Tor and does not have an Ethernet connection. According to the Tor website: Journalists use Tor to communicate more safely with whistleblowers and dissidents. Une voiture piratée à distance par des hackers TECHNOLOGIE - Les voitures connectées, c'est bien. Mais à une certaine échelle, cela peut devenir dangereux. En témoigne l'expérience menée par un journaliste américain du site spécialisé Wired qui a vu sa Jeep échapper littéralement à son contrôle alors qu'il était au volant. Publiée mardi 21 juillet, la vidéo de cette expérience (en tête d'article et en anglais) montre comment deux hackers parviennent à infiltrer le système d'exploitation de cette Jeep Cherokee dernière génération. L'objectif de Charlie Miller et Chris Valasek, les deux "pirates" en question, est de montrer que la technologie embarquée à bord des nouveaux véhicules comporte des risques et qu'il sera question à l'avenir de s'en protéger. À distance, les deux hackers parviennent donc à modifier la température de la climatisation, à intervenir sur l'affichage du tableau de bord, à faire fonctionner la musique ou encore à déclencher l'essuie glace. Lire aussi :• Le futur, une forêt de maisons-arbres?

10 High-Tech Health Breakthroughs Coming Soon to Your Body Magnetic Brain Stimulation For the 20 percent of depressed patients who don't respond to drugs such as Prozac, the traditional last-ditch treatment option has been electroshock therapy. Recently, researchers worldwide began investigating a promising new alternative: transcranial magnetic stimulation. Stem-Cell Scaffold To pinch-hit for missing tissue at an injury site, stem cells need a scaffold to grow on--but artificial materials such as plastic won't do, since the body flags and rejects them as foreign substances. Instant Diagnosis Since 1954, troopers have used breathalyzers to determine whether drivers have imbibed--and just how much. Pre-emptive Strike Against Cancer Scientists around the world are working overtime on new cancer treatments, including more effective chemotherapy and better bone-marrow transplant procedures. Implantable Nanowire If Zhong Lin Wang has his way, routine blood-pressure checks at the doctor's office will soon be a thing of the past. Superbug Zapper

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