4.2.12

Maker Updates contd...

Maker Updates contd...:

Continuing our focus on the burgeoning world of makers and making,firstly the inimitable Phil Torrone on "Why the Arduino Won and Why It's Here to Stay ":



The Arduino is simple, but not too simple. It’s built around the idea that students will be using these to “do” something: get sensor data in, have a bit of code, do something with that. Maybe they didn’t even write the code, they cut and pasted it to get started. It’s hot glue, not precision welding. No one is going to cut a hand off or burn down the studio experimenting. One of the Arduino team members teaches designers and artists — everyday, the platform is being built and improved for step-by-learning, building on lessons and sharing code — these designers and artists are using Macs and tinkering in Processing (Arduino’s older sibling)...The barrier to entry isn’t a monetary one, it’s a philosophical one. This requires boldness and getting out of committee-think. A chip company needs to show off chips — they don’t care about Mac support, or writing tons of software, libraries, and IDEs. Chip companies are (historically) the ones who usually make the platforms. We’ll see some of the big players flood the market with subsidized hardware to beat the $30 price point of the Arduino, but that doesn’t matter if the Arduino support and quality stay high.





Arduino board

Why else is it here to stay? The community. How can you get 100,000+ people to jump ship? You can’t. To get close, you’ll need to develop something just like the Arduino, support its shields and accessories, and write a lot of code (something chip companies hate to do.) Great software for multiple systems, lots of libraries, drivers that work, simple, low cost, and open source. And you know what? I think that’s what the Arduino team really wants. They’re techno-hippies — they want to see other platforms with the same ideals — that’s the game they’re actually playing. And I think it’s what we all want, whether it’s called an Arduino or not...[continue reading]

For those seeking a primer they may want to take a peek at The Open Source Way Creating and nurturing communities of contributors If however you are looking for Arduino tutorials covering a wide array of concepts and techniques go no further than John Boxall's treasure trove of tutorials For more college hackerspace news take a look at the MIT MITERS crew



For your micro milling workshop you might want to assemble an MTM Snap: A snap-together Arduino-powered desktop CNC milling machine.




MTM Snap milling machine


We are increasingly aware of how digital fabrication is democratizing product design consequently this is prompting vertical integration and moore’s law for atoms




Bryan Denton for The New York Times

Furthermore we marveled at the hidden Workshops of the former Libyan rebels wondering what the future holds for their tinkerers.The OScar Project hopes to develop a car according to open source principles.

Adafruit's Limor Fried discussed D.I.Y. Revolution with Bloomberg. Over at P2P they bring to our attention the Free Technology Community Portal.





Meanwhile Emily Smith speaks to the importance of Crafters, Hackers, and Hackerspaces:


Where visions of crafting often conjure up images of glue guns, popsicle sticks, fabric and looms, hacking evokes soldering irons, microprocessors, and software. Truth is, there’s a lot of similarities between hacking and crafting, and even more to be gained from a dialogue between both groups of makers. Both hackers and crafters feel the same need to create things and manipulate materials, and have very similar basic requirements: access to equipment, space to work, and a supportive community within which to grow and share projects and ideas.







Image courtesy of Make magazine

As an avid crafter, when I first visited a hackerspace, I immediately felt inspired to bring my projects there. There were some hints of crafting in the space the first time I set foot there, but it was hugely dominated by hardware and software hacking. Some may have felt alienated by that, but I felt like it was a wonderful opportunity to learn and engage with a medium that I’d never worked with before – and to also bring in the softer side of hacking — and yarn bomb some of those cold-looking surfaces!

In relation to this Openwear founders Zoe Romano + Bertram Niessen discuss DIY Craft and Fashion Microproductions with Massimo Menichinelli:






Image courtesy of Open Wear

Massimo Menichinelli: The phenomena of Open Hardware, DIY and Makers have reached a remarkable level of development, fame and reputation. Perhaps less famous but equally important is the phenomenon of DIY craft and craft / fashion micro enterprises that are often visible on platforms such as Etsy. What are the differences and similarities between these phenomena and how do they relate to each other?

Zoe Romano and Bertram Niessen: All these new scenes have in common a desire to empower understanding what they have in their hands, how it was made and improved. This desire blurs the distinction between producers and consumers, not in the sense that everyone will make everything they need, but that everyone more and more often will able to produce or design something and make it available in a flux of exchange out of which everyone could benefit.
Both phenomena are related with crucial changes that are undergoing in our social and economical environment. The Peak Oil calls to 0 Km chains of production. The rise of 2.0 social networks, mixed with the spreading of p2p communities, encourages new forms of global/local communities of producers and consumers. New technologies in communication and material production foster distributed manufacturing.
The difference is that DIY crafters sometimes have the tendency to perceive themselves more far away from technology because of their handmade pledge. It’s more a problem of cultural background. But as long as they envision the possibilities of new on-demand machines, they realize how craftsmanship could be revolutionized without loosing its soul.




Image credit: The Urban Farming Guys

Furthermore Treehugger profiled the methods for 'DIY Aquaponics: And building a Vortex Filter'(see image above). And lastly Fabaloo highlights a story of 3dprinting in South Africa:









Courtesy of Design Indaba Campaign 2009


There's a great story in Design Magazine describing how Kenneth van Rensburg came to create a 3D printing business (Protoform) in South Africa. After seeing the technology by accident during a Jaguar factory tour in the UK, van Rensburg created Protoform in 2008 to "bridge the gap between design and manufacture", initially focusing on boat design. Later, Protoform would reach out to other markets and now produces 3D models for a variety of industries, including medical models and artistic works.

More to come...

1.2.12

2012 global award winners RISE to the top

2012 global award winners RISE to the top: Our business at Google is rooted in STEM and CS, so we’re passionate about supporting organizations that are expanding access to these fields, especially for students who might not have the opportunity otherwise. The annual Google Roots in Science and Engineering (RISE) program supports organizations running innovative STEM (science, technology, engineering and math) and CS (computer science) enrichment programs for K-12 and university students around the world.







This year, the Google in Education group received a record number of inspiring applications for RISE. We expanded the awards to include Sub-Saharan Africa, and in total, we’re awarding more than $340,000 in funding to 13 U.S., eight European and five African organizations.



Our recipients are diverse, ranging from girls robotics teams building high-tech machinery in Nairobi to after-school programs that have students configuring cluster computers in Salt Lake City. Below are just a few of the outstanding organizations receiving RISE awards this year for their efforts in advancing CS and STEM education:



United States


  • Santa Clara Valley Society of Women Engineers, San Jose, California. GetSET is a program created for underrepresented ethnic minority girls in the San Francisco Bay Area to expose them to engineering while building self confidence through leadership workshops, tours of technology companies and participation in team-building exercises.

  • Saturday Academy, Portland, Oregon. Saturday Academy serves 2nd-12th grade students from Oregon and SW Washington with high quality and creative learning opportunities taught by STEM experts, including hands-on, real world activities that create meaningful connections between academic content and practical application.


Europe


  • Frauennetzwerk Informatik at Universität Passau, Passau, Germany. University students from Passau act as ambassadors for computer science, engineering and math by reaching out to juniors and seniors at their former high schools and running workshops on topics like robotics and mobile app development. Ambassadors go on to serve as mentors to the students throughout their high school and college careers.

  • The Centre for Academic Achievement, Dublin, Ireland. This center runs free after school educational classes in a university setting for bright primary school students from disadvantaged areas. Each term, students from 32 local primary schools have the opportunity to study science, math and engineering subjects and are encouraged to pursue college degrees in the future.


Sub Saharan Africa


  • Savana Signatures, Tamale, Ghana. Savana Signatures educates youth and women, building their capacity to access information for the benefit of Ghana’s social and economic development.

  • Fundi Bots, Kampala, Uganda. Fundi Bots is a technology outreach program for students in high school and university that uses robotics to introduce young children to the endless possibilities of technology in both their day-to-day lives and potential careers.




Organizations interested in applying for 2013 funding can sign up for more information here. We look forward to hearing about all the great work being done in CS and STEM education.



Posted by Roxana Shirkhoda, K-12 Education Outreach

26.1.12

The Problem of Shot Selection in Basketball

The Problem of Shot Selection in Basketball:

by Brian Skinner



In basketball, every time the offense produces a shot opportunity the player with the ball must decide whether the shot is worth taking. In this article, I explore the question of when a team should shoot and when they should pass up the shot by considering a simple theoretical model of the shot selection process, in which the quality of shot opportunities generated by the offense is assumed to fall randomly within a uniform distribution. Within this model I derive an answer to the question “how likely must the shot be to go in before the player should take it?” and I show that this lower cutoff for shot quality depends crucially on the number of shot opportunities remaining (say, before the shot clock expires), with larger demanding that only higher-quality shots should be taken. The function is also derived in the presence of a finite turnover rate and used to predict the shooting rate of an optimal-shooting team as a function of time. The theoretical prediction for the optimal shooting rate is compared to data from the National Basketball Association (NBA). The comparison highlights some limitations of the theoretical model, while also suggesting that NBA teams may be overly reluctant to shoot the ball early in the shot clock.

Ecological Footprint Model Using the Support Vector Machine Technique

Ecological Footprint Model Using the Support Vector Machine Technique:

by Haibo Ma, Wenjuan Chang, Guangbai Cui



The per capita ecological footprint (EF) is one of the most widely recognized measures of environmental sustainability. It aims to quantify the Earth's biological resources required to support human activity. In this paper, we summarize relevant previous literature, and present five factors that influence per capita EF. These factors are: National gross domestic product (GDP), urbanization (independent of economic development), distribution of income (measured by the Gini coefficient), export dependence (measured by the percentage of exports to total GDP), and service intensity (measured by the percentage of service to total GDP). A new ecological footprint model based on a support vector machine (SVM), which is a machine-learning method based on the structural risk minimization principle from statistical learning theory was conducted to calculate the per capita EF of 24 nations using data from 123 nations. The calculation accuracy was measured by average absolute error and average relative error. They were 0.004883 and 0.351078% respectively. Our results demonstrate that the EF model based on SVM has good calculation performance.

ST to launch GreenNet Wireless Sensor Networking platform

ST to launch GreenNet Wireless Sensor Networking platform:

Semiconductor maker STMicroelectronics will unveil an application for mobiles or set-top boxes, taking utility of an open platform for buildings. The GreenNet Wireless Sensor Networking technology platform comprises self-powered nodes that can be positioned around the home for tasks such as temperature, CO (carbon monoxide) or movement sensing, relaying data wirelessly to a GreenNet dongle installed in a PC or set-top box. The data could then be communicated to a mobile device such as a smartphone or tablet via a wireless router to enable monitoring and control. The building block of this GreenNet Wireless Sensor Networking platform is the GreenNet node, which utilises core ST technologies in energy management, silicon-based sensors and embedded wireless to create the network node free of wires or any need to change batteries. The node combines a rechargeable battery and solar cell with an on-chip sensor and STM32W 32-bit wireless microcontroller in a compact 3D system-in-package that consumes minimal power and can operate autonomously powered only by ambient light energy. By using open standards, such as IPv6 1, the platform allows independent developers to create downloadable applications for tasks such as home monitoring, security or fire safety. The GreenNet wireless node utilises an industry-standard IEEE 802.15.4 radio operating in the license-free 2.4GHz frequency band. ST is demonstrating the system using a sample node that features an on-chip temperature sensor, a USB dongle, and a service platform including sample application store. It can relay one temperature measurement every five minutes. It can still operate autonomously for up to six weeks in the da rk. Samples for customers are available.


More info here.

SENSEable Shoes

SENSEable Shoes:

Created by Huaishu Peng and Yen-Chia Hsu at the Computational Design Lab at Carnegie Mellon comes the SENSEable shoes project.

The shoes can identity and transmit information for 10 different gait patterns (standing, sitting, turning left, turning right, walking left, walking right, walking forward, walking backward, going upstairs, and downstairs). Suggested applications for the shoes include being used in gaming platforms (think Wii Fitness) or detecting abnormal gaits in health care patient monitoring.

Project Description:

"The goal of this project is to build a foot-computer interface: a newly hand-free and eye-free interactive technology designed for the growing pervasive computing environments. By embedding multiple sensors into shoes, people are allowed to control ambient digital devices with their foot gestures as well as toe gestures."


Created with:

  • Twelve Force-Sensing Resistors(FSR)
  • two Arduino UNO microcontroller boards with ATmega168 microprocessors
  • two Xbee wireless transmission devices

Similar Projects:

FootIO

GaitShoe

Additional Details:

Based on the MIT licence (code here)

More information on the project can be found at http://code.arc.cmu.edu/projects/senseable-shoes/.

Image credits: Huaishu Peng and Yen-Chia Hsu

Printed Sensors Could Help Save You From Spoiled Food

Printed Sensors Could Help Save You From Spoiled Food:

From Wired:


Whenever I pick up a package of frozen raw meat from the grocery store, I wonder, “Has this been frozen the whole time? How many times did it thaw and re-freeze?” It’s a disquieting thought, especially because there’s currently no easy way to tell.


But it looks like the ambiguity is about to end. In partnership with PST Sensor, Thinfilm, which produces printed re-writable memory, will begin making the first fully printed temperature sensor systems to monitor perishable items like food and pharmaceuticals.


“It’s a smart object that’s entirely self-contained,” Jennifer Ernst, Thinfilm’s North American VP told Wired.


That may sound familiar. It’s a key element of a concept called “The Internet of Things,” which basically refers to an imagined future where nearly every object will include embedded chips that can store data and interact with networks.


Thinfilm’s first-gen sensors will be able to cache data about the object itself, on the item itself. In this case, the sensors will record data concerning the object’s temperature history, tracking precise time, temperature and exposure information, and also displaying it in a low-power readout. The data within can be accessed as needed, insomuch it doesn’t need to be retrieved from the cloud, or require a constant wireless connection.


In the past, we’ve seen thin food sensors that change color as food begins to spoil. But this type of technology doesn’t retain data, and thus doesn’t provide information about the history of a product as it shipped.


More info here.