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Columbia Engineers Prove Graphene is Strongest Material

July 21, 2008 Columbia Engineers Prove Graphene is the Strongest Material Research scientists at Columbia University’s Fu Foundation School of Engineering and Applied Science have achieved a breakthrough by proving that the carbon material graphene is the strongest material ever measured. Graphene holds great promise for the development of nano-scale devices and equipment. It consists of a single layer of graphite atoms arranged in a hexagonal lattice, similar to a honeycomb. As a two-dimensional material, every atom is exposed to the surface. Until now, graphene’s estimated strength, elasticity and breaking point were based on complex computer modeling theories. “Our team sidestepped the size issue by creating samples small enough to be defect-free,” said Columbia Professor Jeffrey Kysar. The studies were conducted by postdoctoral researcher Changgu Lee and graduate student Xiaoding Wei, in the research groups of mechanical engineering professors Kysar and James Hone. Related:  Information

Science News: Nanoguitar Photo by D. Carr and H. Craighead, Cornell. The world's smallest guitar is 10 micrometers long -- about the size of a single cell -- with six strings each about 50 nanometers, or 100 atoms, wide. Made by Cornell University researchers from crystalline silicon, it demonstrates a new technology for a new generation of electromechanical devices. The world's smallest guitar -- carved out of crystalline silicon and no larger than a single cell -- has been made at Cornell University to demonstrate a new technology that could have a variety of uses in fiber optics, displays, sensors and electronics. The "nanoguitar" -- made for fun to illustrate the technology -- is just one of several structures that Cornell researchers believe are the world's smallest silicon mechanical devices. "We have a new technology for building the smallest mechanical devices," said Harold G. The guitar has six strings, each string about 50 nanometers wide, the width of about 100 atoms. Photo by D. Photo by D.

The 100 Best Lifehacks of 2010: The Year in Review Happy New Year everyone! It’s the first week of 2011 and many of us are getting ready to kick off the brand new year with a big bang. As we start off 2011 with our new resolutions and goals, let us now look back at the best posts at Lifehack in the past year. In this review post, I have gathered 100 of the best LifeHack articles in 2010. These articles have been selected based on your votes and how much YOU have talked about them in social media (Facebook and Twitter). I have categorized these 100 articles into 11 main categories of Overall Personal Growth, Maximizing Productivity & GTD, Lifestyle & Habits, Inspiration & Motivation, Goal Achievement & Success, Emotional Mastery, People Skills & Relationships, Communications & Writing, Business & Career, Creativity & Inspiration, Family and Miscellaneous. Do not attempt to read this whole post at once! Let me start off with the top 10 most popular life hack posts out of the 100s of posts published in 2010. Overall Personal Growth Family

Brief Answers to Cosmic Questions Structure of the Universe Does the Universe have an edge, beyond which there is nothing? Are the galaxies arranged on the surface of a sphere? Why can't we see the whole universe? Does the term "universe" refer to space, or to the matter in it, or to both? Evolution of the Universe Did the Universe expand from a point? If so, doesn't the universe have to have an edge? More about the Big Bang When they say "the universe is expanding," what exactly is expanding? Structure of the Universe Does the Universe have an edge, beyond which there is nothing? Are the galaxies arranged on the surface of a sphere? Why can't we see the whole universe? If you could suddenly freeze time everywhere in the universe, and magically survey all of creation, you would find galaxies extending out far beyond what we can see today. Does the term "universe" refer to space, or to the matter in it, or to both? Today, the situation is reversed. Evolution of the Universe Did the Universe expand from a point?

I, For One, Welcome Our New Computer Overlords Last night, IBM’s Watson computer won the final round of the three-day Man V. Machine Jeopardy! competition. At the beginning of the show, the humans were fierce, proving that they could buzz in faster than Watson, even though the machine knew the answer. Both human competitors, Ken Jennings and Brad Rutter, got it correct as well. Rutter: $21,600Jennings: $24,000Watson: $77,147 But although Watson won the competition, humans still prevailed. On Jeopardy! In this video from IBM, project researchers describe how a computer system like Watson could be capable of reading an unlimited number of documents, understanding the information and completely retaining it. Financial companies could use a computer like Watson to read and analyze news reports, market reports, trade publications, world events, blogs — you name it — and extract meaningful information for investors or business owners. I think Watson is agreat achievement of our time.

Google Goggles - Visual Search: Google Real Time Search Without Typing | Blogoncherry Home » News, Tech/Gadget » Google Goggles – Visual Search: Google Real Time Search Without Typing Today Google demoed a brand new product set to launch in Google Labs: Google Goggles. Google Goggles is now live in Labs. It will be Android-only for now, and it’s available in the Android market. The example that Google VP of Engineering Vic Gundotra showed on stage involved taking a picture of a particular bottle of wine. It seems as if this new functionality, which should be live in Google Labs soon, will be destined for Android phones at least at first. Tags: Android, android apps, araugemented reality, goggles, gogglesgoogle, google goggles, google real time search, obama, OCR, optical character recognition, real time search, realtime search, Software, visual search

Philip Zimbardo: The Secret Powers of Time (Animated) Bio Philip Zimbardo Philip Zimbardo is internationally recognized as a leading "voice and face of contemporary psychology" through his widely seen PBS-TV series, "Discovering Psychology," his media appearances, best-selling trade books on shyness, and his classic research, The Stanford Prison Experiment. Zimbardo has been a Stanford University professor since 1968 (now an Emeritus Professor), having taught previously at Yale, NYU, and Columbia University. His current research interests continue in the domain of social psychology, with a broad emphasis on everything interesting to study from shyness to time perspective, madness, cults, vandalism, political psychology, torture, terrorism, and evil. He heads a philanthropic foundation in his name to promote education in his ancestral Sicilian towns. He is also the author of The Lucifer Effect: Understanding How Good People Turn Evil (Random House, 2007). To download this program become a Front Row member. Encyclopædia Britannica Article time

The Relativity of Wrong by Isaac Asimov by Isaac Asimov I received a letter from a reader the other day. It was handwritten in crabbed penmanship so that it was very difficult to read. Nevertheless, I tried to make it out just in case it might prove to be important. In the first sentence, he told me he was majoring in English Literature, but felt he needed to teach me science. It seemed that in one of my innumerable essays, here and elsewhere, I had expressed a certain gladness at living in a century in which we finally got the basis of the Universe straight. I didn't go into detail in the matter, but what I meant was that we now know the basic rules governing the Universe, together with the gravitational interrelationships of its gross components, as shown in the theory of relativity worked out between 1905 and 1916. These are all twentieth-century discoveries, you see. The young man then quoted with approval what Socrates had said on learning that the Delphic oracle had proclaimed him the wisest man in Greece. "Wrong!"

thermodynamics - Cooling a cup of coffee with help of a spoon Stirring will win, hands down, every time. This is why physicists need to talk to chemists once in a while. As Georg correctly remarks, the latent heat of vaporization of water is enormous - but he's wrong about waving the spoon; stirring is the champion here. Why? It's similar to stirring iced tea. This kind of thing has a lot of applications to laboratory and industrial chemical processes, surface catalysis, petroleum cracking, yadda yadda. If you want an even faster way to cool a cup of coffee, here's a tip from my Granddad Parker: forget the spoon and saucer your coffee. Wipeout recreated with an RC car and lots of cardboard – Video Games Reviews, Cheats If you’ve owned any of Sony’s PlayStation consoles then there’s a good chance you’ve also played one of the Wipeout, games. It’s a high-speed racing game that helped make the PSOne popular, and it’s now been recreated using a remote control car. The project is the idea of Malte Jehmlich. He decided to create a track out of cardboard reminiscent of the Wipeout tracks. The finished “game” has the player controlling the car through the eye of the camera while sitting in the cabinet. It’s surprisingly true to the Wipeout experience, but cost a lot less to produce than any one of the digital games. Read more at the Racer Demo Vimeo page, found via Akihabara News Matthew’s Opinion With the cost of wireless cameras dropping all the time, and Arduino readily available, I think this would be an easy experiment for other people to try. It would be great to see this project develop adding features like a score system that ticks up as long as your car is moving.

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