CARD sources. Mirage effect from thermally modulated transparent carbon nanotube sheets. The single-beam mirage effect, also known as photothermal deflection, is studied using a free-standing, highly aligned carbon nanotube aerogel sheet as the heat source. The extremely low thermal capacitance and high heat transfer ability of these transparent forest-drawn carbon nanotube sheets enables high frequency modulation of sheet temperature over an enormous temperature range, thereby providing a sharp, rapidly changing gradient of refractive index in the surrounding liquid or gas. The advantages of temperature modulation using carbon nanotube sheets are multiple: in inert gases the temperature can reach > 2500 K; the obtained frequency range for photothermal modulation is ~ 100 kHz in gases and over 100 Hz in high refractive index liquids; and the heat source is transparent for optical and acoustical waves. Word Counter.
Program or be programmed: ten commands for a digital age - Douglas Rushkoff. Douglas Rushkoff was born on February 18, 1961. After graduating from Princeton University he received an MFA in Directing from California Institute of the Arts. He has written numerous magazine columns on topics including cyberculture and has been aired on CBS Sunday Morning and NPR's All Things Considered and published in The New York Times and Time magazine. Rushkoff has taught at the MaybeLogic Academy, NYU's Interactive Telecommunications Program, and the Esalen Institute, and he teaches media studies at the New School University. Rushkoff lectures around the world about media, art, society, and change at conferences and universities. He consults to museums, governments, synagogues, churches, universities, and companies on new media arts and ethics. Rushkoff won the first Neil Postman award for Career Achievement in Public Intellectual Activity.
Chick-fil-A Leadercast 2012. Botanicalls Kit. Description: Botanicalls Kits let plants reach out for human help! They offer a connection to your leafy pal via online Twitter status updates to your mobile phone. When your plant needs water, it will post to let you know, and send its thanks when you show it love. It comes as a kit so that you can hone your soldering skills (or teach someone else) while you build a line of communication between you and your houseplant! This kit comes with everything you need to get your plant tweeting in no time. The ATmega328 comes pre-programmed, but you can customize it with your own messages.
The only thing you need to provide is a plant, network connection (and ethernet cable), and a power outlet. To upload custom code to the Botanicalls Kit, you'll need either an FTDI Cable or a 3.3V FTDI Basic Breakout. See the link below for a step-by-step guide to assembling and customizing your Botanicalls kit. Note: It's not shown in the parts photo, but the kit does include a 5V Wall Adapter. Documents: Interview: Twine - The Internet of Things for Regular People? My Thoughts on Codecademy - O'Reilly School of Technology. There is yet another new wave of start-ups emerging in the educational technology space and like those that came before, most of this new wave neglects to address some critical issues. Every few years, a new set of companies comes out with what they refer to as, “the next wave in digital education.” However, these “new” methods and technologies are rarely actually new.
Experienced educators who have followed the evolution of digital education since its inception over fifty years ago, have seen it all. The new distribution technologies offered by the new web don’t actually enable new pedagogies that haven’t been tried yet. Since the mid-1980s, there has been adequate technology and tools available to allow us to try out the entire array of pedagogical theories.
Before, reviewing and analyzing Codecademy though, I’d like to address the issue of armchair journalism in the Silicon Valley and the press coverage of educational products. You do these things, and voila! Galvanic Cells | Chemistry. Create Your Own Programming Language. Table of Contents What's a Programming Language? Why We Need another Programming Language JavaCC Java Reflection Eclipse Configuration Programming Language Example (Name: St4tic) 6.0- Grammar 6.1- Code Generating 6.2- Using Reflection 6.3- Core Creation 6.4- Making Interpreter System:out:println(1 + var) Summary Reference 1- What's a Programming Language?
A programming language is an artificial language designed to express computations that can be performed by a machine, particularly a computer. Why? In reality, a programming language is just a vocabulary and set of grammatical rules for instructing a computer to perform specific tasks. Regardless of what language we use, we eventually need to convert our program into machine language so that the computer can understand it. Compile the program (like C/C++) Interpret the program (like Perl) In this article, we use the second way “interpreted language” like Perl or Ruby, called “St4tic” for demonstration. 3- JavaCC Ready!? Fight! Kathryn Schulz: Don't regret regret | Video on TED.com. Online copyright registration, your questions answered. Classes.dma.ucla.edu/Winter09/9-1/_pdf/3-fuller_operating-manual.pdf.
Pentagon Scientists Use 'Time Hole' to Make Events Disappear | Danger Room. Soldiers could one day conduct covert operations in complete secrecy, now that Pentagon-backed physicists have figured out how to mask entire events by distorting light. A team at Cornell University, with support from Darpa, the Pentagon's out-there research arm, managed to hide an event for 40 picoseconds (those are trillionths of seconds, if you're counting).
They've published their groundbreaking research in this week's edition of the journal Nature. This is the first time that scientists have succeeded in masking an event, though research teams have in recent years made remarkable strides in cloaking objects. Researchers at the University of Texas, Dallas, last year harnessed the mirage effect to make objects vanish. And in 2010, physicists at the University of St. Masking an object entails bending light around that object. Where events are concerned, concealment relies on changing the speed of light. The entire experiment occurred inside a fiber optics cable. Illo: Ubisoft. NES controlled Etch-a-sketch - YouTube. Three tips for escaping the creativity peloton without giving up on collaboration If you’ve ever watched a road bike race like the Tour de France, you know the peloton is the big group of riders that cluster together during the race to reduce drag.
It’s a great example of collaboration in action. But let’s face it: the people in the middle of the peloton may go faster than they would otherwise, but they don’t win the race. When it comes to creating and innovating, most companies (and employees) are in the peloton. Escaping the peloton is tough. You’ve probably felt this way at work. After this happens one too many times, you may feel like you want to stop collaborating and try to make things happen on your own.
Instead, here are three tips to help you escape the creativity peloton without giving up on collaboration. [Read the rest of this post on opensource.com] Like this: Like Loading... A handbook for the open source way, written the open source way Brilliant. Continue reading 1. 2. 3. 4. 5. 10 Important Differences Between Brains and Computers : Developing Intelligence. “A good metaphor is something even the police should keep an eye on.” – G.C. Lichtenberg Although the brain-computer metaphor has served cognitive psychology well, research in cognitive neuroscience has revealed many important differences between brains and computers. Appreciating these differences may be crucial to understanding the mechanisms of neural information processing, and ultimately for the creation of artificial intelligence. Below, I review the most important of these differences (and the consequences to cognitive psychology of failing to recognize them): similar ground is covered in this excellent (though lengthy) lecture.
Difference # 1: Brains are analogue; computers are digital It’s easy to think that neurons are essentially binary, given that they fire an action potential if they reach a certain threshold, and otherwise do not fire. Difference # 2: The brain uses content-addressable memory Difference # 4: Processing speed is not fixed in the brain; there is no system clock. Twine : Listen to your world, talk to the Internet by Supermechanical.
The Kickstarter is over, but if you missed out on backing us, not to worry. You can still join the thousands of other awesome Twine owners by pre-ordering on Supermechanical. It's the next best thing to being an original backer! Follow us on Facebook or Twitter. Want to hook up things to the Web? Maybe you want to get a tweet when your laundry's done, or get an email when the basement floods while you're on vacation.
Even if you're good with electronics and programming, these are involved projects. Instead of worrying about wiring or networking code, you can focus on your idea. Twine is the simplest possible way to get the objects in your life texting, tweeting or emailing. Twine lets you create Internet-connected systems and objects anywhere you have WiFi. Twine is a wireless module tightly integrated with a cloud-based service. The Spool web app makes it simple to set up and monitor your Twines from a browser anywhere. Holiday note: About TED | How to help spread TED | Behind the TEDTalk. But What If You’re Un-Googleable? Investor and serial entrepreneur Chris Dixon has written a notable (and mercifully short !)
Blog post about how social utilities like Google and Facebook have essentially become reputation engines powering the emergence of collaborative consumption startups like Airbnb and TaskRabbit. Dixon’s “Internet of people” argument relies on the idea that Google search has replaced real life social proof, but this kind of oversimplification overlooks a major problem yet to be solved … The premise behind emerging reputation-startups like Klout is that people will eventually outsource stuff like online reputation due to being overwhelmed and blindsided by the physical Internet. But Google search is not always a meritocracy — and somebody can totally cash in on that. Forreals yo; In third grade being the unique and uncommon ‘Alexia Tsotsis‘ sucked, but, in adult life I’m all like,”Hell yeah, I’ve got the first slot for my name in Google!” Says Dixon: The Internet Is People. There’s always been a tension on the Internet between humans and algorithms.
In the early days, Yahoo was a human-curated index, remember? But humans couldn’t keep up, and the algorithms took over. Today, the human factor is rising in importance once again with Facebook, Twitter, and countless mobile applications like Instagram. Everything is social. The Internet is not just billions of linked pages, databases, and (increasingly) mobile apps. Yes, social threatens the primacy of search in that it replaces the search engine’s algorithm with links from people we trust as a way to discover new information. The Internet makes us smarter, but we also make the Internet smarter. We are programing the Internet every day. This interplay of humans and computers augmenting each others actions and amplifying one another’s understanding.
Amazon’s Mechanical Turk is the best known example of human labor being used as a computing input. These are just early examples. Photo credit: Anirudh Koul. Dan Pink on the surprising science of motivation. I, Pencil. DECEMBER 01, 2008 by LEONARD E. READ “Eloquent. Extraordinary. Timeless. Paradigm-shifting. Classic. Hundreds of thousands of Americans of all ages continue to enjoy this simple and beautiful explanation of the miracle of the “invisible hand” by following the production of an ordinary pencil.
Download the Audio MP3 Download PDF Version Buy a copy from FEE Store Read Online HTML Version of I, Pencil below: About Leonard E. Leonard E. His life is a testament to the power of ideas. Read was the author of 29 books and hundreds of essays. This new edition of “I, Pencil” was made possible by the generosity of John A. Introduction By Lawrence W.
Eloquent. Ideas are most powerful when they’re wrapped in a compelling story. This is a message that humbles the high and mighty. Indeed, a major influence on Read’s thinking in this regard was Hayek’s famous 1945 article, “The Use of Knowledge in Society.” —Lawrence W. I, Pencil By Leonard E. Writing is both my vocation and my avocation; that’s all I do. Rachel Botsman: The case for collaborative consumption. Clay Shirky on institutions vs. collaboration. Howard Rheingold: The new power of collaboration. Wp-content/uploads/audio/books/I-Pencil-Full.mp3. Matt Ridley: When ideas have sex. Ken Robinson says schools kill creativity.
Iain McGilchrist: The divided brain. Get Lit: The Literature Review. Ben hammersley.