Africa is the last frontier for global investment, and beverage companies in particular are moving in quickly. One of them is Coca-Cola, which has long used its distribution network to help deliver medical supplies in countries such as Ghana and Tanzania. Now the company promises to invest an additional US$5 billion in sustainable development projects through the end of this decade.
Instead of walking to the corner store to buy batteries for your flashlight, soon you could just walk—anywhere. A pair of Wisconsin researchers has come up with a novel energy-harvesting device that converts mechanical motion into electrical energy at a high enough power to recharge cell phones, cameras, and myriad other portable electronic devices. Such energy harvesters won’t do away with batteries. But if they become practical, they could dramatically lengthen the time between when we need to plug our devices into the wall.
La Bretagne invente l’impression 3D écolo à base d’algues
Le FabShop et la société AlgoPack, tous deux implantés en Bretagne, commercialiseront l’an prochain un substitut écologique au plastique, destiné aux imprimantes 3D, réalisé à base d’algues.
Excellent referencement de business tendance… ou pas.
Avec un descriptif et les conditions requises pour mener a bien vos projets.
Enjoy (car c’est en anglais…)
Nouvelle innovation dans le monde de la santé : un pansement qui détecte les infections en changeant de couleur ! Cette invention est l’oeuvre de Louise van der Werff, étudiante de doctorat à «Monash University» d’australie, recherche faite en collaboration avec le CSIRO.
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Le futur …
Nanotechnology Incorporated Into Paper Electronics
Saved under Research, Sarah Takushi, Science, Technology
Applications of incorporated nanotechnology have the potential to revolutionize how the world uses and views even the simplest objects—including paper. In a recent publication of the academic journal Nanotechnology Dr. Anna Demming commented on how the rapidly advancing fields of nanotechnology and nanoscience will in the not-so-distant future allow manufacturers to print cutting edge electronic technology directly onto a single page.
Nanoscience and nanotechnology refer to the theoretical and applications-based study of extremely small things. As the name implies, these small objects are measured on the scale of nanometers—or 1 x 10 -9 meters (0.000000001 meters). Such a scale is over a thousand times smaller than human cells (which are measured in micrometers, or 0.000001 meters). Nanotechnology addresses the complex formation and configuration of dynamic molecules such as DNA, enzymes, and even completely new molecules that were designed by humans.
A cornerstone event in the nanotechnology’s history was Richard Feynman’s famous 1959 talk entitled “There’s Plenty of Room at the Bottom”. However the concepts of modern nanotechnology did not arise until 1981 when Professor Norio Taniguchi from the Tokyo Science University described new, ultra-precise methods for manufacturing semiconductor devices. This work introduced and popularized the term “nanotechnology.”
Nanotechnology has a seemingly endless array of potential applications. With science’s current understanding and abilities, nanotechnology can and has been applied to developments in tumor therapy, agriculture, the dairy industry, holograms, electronics, and gene targeting. The precision of the molecules engineered with nanotechnology allows for the more effective use of fewer materials. In addition special considerations can be given to how these molecules can be manufactured and broken down after use. Consequently nanotechnology has been heralded as offering incredible potential for creating versatile, economic, and environmentally friendly products.
One fast-developing sector of nanotechnology is in paper. Paper is especially useful in creating flexible electronics for a number of reasons. Practically speaking, the light weight nature, inexpensive production costs, and well-established production methods make it ubiquitous and economical to use. In addition, a growing demand for green technology also favors paper because of how it poses a minimal threat to the environment and can be both recycled and renewed.
Researchers and engineers are currently investigating ways to incorporate nanotechnology onto and into paper electronics using standard screen or ink-jet printing. Using these established techniques, it would be possible to integrate circuits or microcontrollers directly onto paper. Already this technology has been successfully applied by researchers in Korea to screen print basic number displays that can be activated by different temperatures and operating voltages. Still others have created paper-based super-capacitors, DNA hybridization recognition technology, and sensors for toxic gas detection and breathalyzers.
Mainstream use of paper electronics with incorporated nanotechnology is still a ways off into the future. However in the last decade progress in the field has been greatly stimulated by advancements in thin film deposition and organic materials. However the promise of electronics integrated into or printed out on paper has attracted significant international attention. Therefore, though still a ways off, one should not be surprised if in the future even ordinary sheets of paper are given a technological upgrade.
By Sarah Takushi
Tocomail is free, simple and safe email for kids that offers parents complete control over kids email activity while providing a fun and safe email service experience with kids email app.
This looks like a safe and interesting way to introduce kids to email and protect them from spam and other problems.
See on tocomail.com
Un article qui synthetise le probleme de l’imprimante 3d.
Urgent rethinking is required to avoid the revolutionary potential of 3D printing being lost in a sea of pointless plastic products
Norman Foster plans to print moon bases using an array of mobile printing nozzles on a 6 metre frame to squirt out sequential layers of lunar soil that will be set with a binding solution. The current system can work at a rate of 2 metres per hour, but next generations of printers are expected to reach 3.5 metres per hour or more, and be able to finish an entire building in a week.
Back on Earth, firms are using Contour Crafting to structurally match building design with their environments by combining 3-D printers and Geographic Information Systems (GIS). This experimental technology may one day design entire ports to withstand future earthquakes that devastate places like Haiti, at a fraction of the cost of a traditional construction company. And more 3-D magic is on the way.