This video show some wonderful images from remote cameras equipped to film when an animal is spotted. These camera have aided scientists in understanding wildlife in their natural environment and also by providing us cool images.
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Yacouba Sawadogo – The Man Who Stopped the Desert
Quote from the video
Dr. Chris Reij, Vrije University of Amsterdam.
As is normally the case making improvements in the real world is challenging and visionaries often face setbacks. Even when they have success that success is threatened by those that want to take the rewards but ignore the lessons. The clip above is a excerpt from the documentary film on his efforts.
Over-farming, over-grazing and over population have, over the years, resulted in heavy soil erosion and drying in this landlocked West African nation.
Zai is a very simple and low-cost farming technique. Using a shovel or an axe, small holes are dug into the hard ground and filled with compost. Seeds of trees, millet or sorghum are planted in the compost. The holes catch water during the rainy season, so they are able to retain moisture and nutrients during the dry season.
According to the rules of Zai, Yacouba would prepare the lands in the dry season – exactly the opposite of the local practice. Other farmers and land chiefs laughed at him, but soon realized that he is a genius. In just 20 years, he converted a completely barren area into a thriving 30-acre forest with over 60 species of trees.
Yacouba has chosen not to keep his secrets to himself. Instead, he hosts a workshop at his farm, teaching visitors and bringing people together in a spirit of friendship. “I want the training program to be the starting point for many fruitful exchanges across the region
3D Printing at Home: Today, Challenges and Opportunities
Guest post by Noah Hornberger
The State of 3D Printing at Home
Rapid prototyping is very rewarding. Moving from an idea that you had during breakfast to an object you can hold in your hands by lunchtime feels like magic or science fiction.
Modeling tools are getting easier to use, making the actual process of designing 3D objects fairly intuitive and dare I say . . . easy. I suspect home 3D printing is empowering a silent revolution that will be more and more apparent in the coming years.
Even so, there is a lot of quirkiness to the 3D print technology that an average consumer is probably not ready to deal with. In this post I want to give inside information I have learned by running my own home-based 3D print business. I have been there in the trenches, with a queue of orders, a few 3D printers and the drive to make it happen. And let me tell you that without the drive to push past the obstacles, it really would not be possible to run a 3D print-on-demand business this way.
3D printers have enabled me to pull off an impossible task of distributing my own artistic products to an international market. I have shipped to USA, Spain, Australia, Norway, Canada, and the UK. And this May of 2015 marks my first year of owning a 3D printer.
So there is some magic I would say in being able to move through iterations of your ideas so fast. And magic in being able to post photos of your products that people can understand to be real and tangible things.
I have had ideas for products for many years and even tried to launch them (unsuccessfully). But now things are different. I do not have to convince people that an idea is good, I can show them a real example of finished art they can own.
I would argue that 3D modeling is the easiest part of the process. Getting a spectacular print can take some work and patience, because it can involve re-starting the printer with small changes in settings each time. As an American trained artist, I have a tendency to want things to be fast and easy. I want to press a button and it just works. 3D printers can kind of promise this ability, but most often, I am stepping in to keep the machines on track.
Biomass Fueled Power Generator from All Power Labs
All Power Labs produces biomass fueled power generators. They have grown from a open science and engineering foundation to their current position. I really like how they are focused on promoting understanding and encouraging collaboration.
They reject the copyright cartel closed science mindset; which is something I like. Their product takes waste biomass; for example walnut shells, coconut shells, hardwood chips (Oak, Beech), softwood chips (Douglas Fir, Pine). It also takes corn cobs, palm kernel shells and others but there are additional challenges to operation.
Their products use gasification which is most simply thought of as choked combustion or incomplete combustion. It is burning solid fuels like wood or coal without enough air to complete combustion, so the output gas still has combustion potential. The unburned gas is then piped away to burn elsewhere as needed.
The Power Pallet is a complete biomass power generation solution that converts woody biomass into electricity. It costs $29,995 which translates to a cost of $1-$2/watt which is more cost effective that alternatives. They have significant sales in developing markets where power is often problematic. It is specifically not suited to some fuel – wastepaper (could maybe work in pelletized form), municipal waste, coconut husk…
This webcast is the start of a presentation on the history and current state of their efforts (continue to view other clips for the whole presentation):
Related: Ethanol: Science Based Solution or Special Interest Welfare – Do It Yourself Solar Furnace for Home Heating – Kudzu Biofuel Potential Chart of Wind Power Generation Capacity Globally from 2005 to 2012 – Turning Trash into Electricity (2006)
Using The Building of Robots to Engage Students in Learning
Fundi bots has a mission to use robotics training in African schools to create and inspire a new generation of problem solvers, innovators and change-makers. I believe strongly in this type of effort. We waste so much human potential by killing students design to learn. Instead we need to create systems that not only don’t kill that desire but allow it to flourish.
Fundi Bots focuses on the technological process of building robots as a way for students to look at the world around them from a practical, solution oriented perspective. By guiding students through problem identification, brainstorming, collaboration, construction, programming, final deployment and system feedback, we show them how the problems around them can be solved through a technological approach and persistent reductive analysis.
Fundi Made is an effort to create professional grade electronics right in our Fundi Spaces, and deploy the products in five core market segments; home-automation, agriculture, energy, security and health.
Related: Promoting Innovation in Sierra Leone – Letting Children Learn using Hole in the Wall Computers – Given Tablets but No Teachers, Kids Teach Themselves (Having Never Seen Advanced Technology Before) – Teaching Through Tinkering – Encouraging Curiosity in Kids – 20th Annual US First Robotics Competition (2012)
Manufacture Biological Sensors Using Silk and Looms
The fabric chip platform from Achira Labs in India uses looms to manufacture biological sensors.
Yarn coated with appropriate biological reagents like antibodies or enzymes is woven into a piece of fabric at the desired location. Strips of fabric are then cut out, packaged and can form the substrate for dierent biological assays. Even a simple handloom could produce thousands of these sensors at very low cost.
The resulting fabrics can be used to test for pregnancy, diabetes, chronic diseases, etc.. Achira Labs, an Indian start-up, received $100,000 in Canadian funding in 2013 to develop a silk strip that can diagnose rotavirus, a common cause of diarrhea and can be used in diapers.
The company is planing to start selling silk diabetes test strips using there process this year and expects costs to be about 1/3 of the existing test strips using conventional manufacturing processes.
Related: Appropriate Technology Health Care Solution Could Save 72,000 Lives a Year – Water Wheel – Using Drones to Deliver Medical Supplies in Roadless Areas – Appropriate Technology: Self Adjusting Glasses
Leslie Lamport Receives 2013 ACM Turing Award
Leslie Lamport, a Principal Researcher at Microsoft Research, has been named as the recipient of the 2013 ACM A.M. Turing Award for imposing clear, well-defined coherence on the seemingly chaotic behavior of distributed computing systems, in which several autonomous computers communicate with each other by passing messages. He devised important algorithms and developed formal modeling and verification protocols that improve the quality of real distributed systems. These contributions have resulted in improved correctness, performance, and reliability of computer systems.
ACM (Association for Computing Machinery) announced that the funding level for the ACM Turing Award is now $1,000,000 (to be provided by Google). The new amount is four times its previous level. It seems to me the 14th of November 2014 is a bit late to announce the 2013 award winner, but for an extra $750,000 I would gladly wait a year (or a decade for that matter).
The new award level brings the computer science award to the level of Nobel Prizes and the Fields medal.
Leslie Lamport’s 1978 paper, “Time, Clocks, and the Ordering of Events in a Distributed System,” one of the most cited in the history of computer science.
Read more about the work of Leslie Lamport.
RoboBoat 2014 – Student Designed Autonomous Boats
The first video gives a recap of RoboBoat 2014. In 2014, Embry-Riddle Aeronautical University took 1st place. University of Florida was 2nd, followed by the Robotics Club at UCF and in 4th place the Georgia Institute of Technology.
The teams must design and build an autonomous boat to compete in challenges. During the competition, student teams race their autonomous surface vehicles through an aquatic obstacle course. This includes littoral area navigation, channel following, and autonomous docking. The competition provides an opportunity for students to develop skills in system engineering by accomplishing realistic missions with autonomous vehicles in the maritime environment.
A team participated from Diponegoro University, Semarang, Indonesia, which is next to me – though about as far from the finals as you can be on the globe.
Related: 9th International Autonomous Underwater Vehicle Competition – 20th Annual US First Robotics Competition – Botball 2009 Finals – Robo-One Grand Championship in Tokyo (2007) – Eco-Vehicle Student Competition
Self Driving Cars Have Huge Potential for Benefit to Society
Self-driving cars was something that seemed very far-fetched when I first read Google was seriously investing in pursuing that idea as a commercially viable product (Google’s Self Driving Car – 2010 post). I quickly became convinced they were right. I still think it is questionable if they will succeed (the political issues may well be even more difficult than technical ones). But the chances of success seem reasonable and the investment in research could provide a huge payoff.
Google’s self driving cars have driven 700,000 miles without an accident already; which is amazing. Warren Buffett stated that “self-driving cars are a real threat to the car insurance business” (His company owns the GIECO car insurance company) at the 2014 Berkshire Hathaway shareholder meeting in Omaha.
There are some people, stressing that this is not ready for mass market use. They are right. But, I think it is funny to see people thinking that a very early stage huge innovation in transportation not being ready today is a reasonable criticism. I am amazed that this huge innovation may actually be available before 2020. That would be incredible.
Certainly even then it will have limitations. And certainly there will be accidents. The current transportation system with humans driving cars has thosands of accidents a day and tens of thousands of deaths a year in the USA alone every year. Every year 1.2 million people die worldwide in traffic-related incidents, and over 90% of those accidents are due to human error.
iPhone Addition as Alternative to Expensive Ophthalmology Equipment
Researchers at the Stanford University School of Medicine have developed two inexpensive adapters that enable a smartphone to capture high-quality images of the front and back of the eye. The adapters make it easy for anyone with minimal training to take a picture of the eye and share it securely with other health practitioners or store it in the patient’s electronic record.
The researchers see this technology as an opportunity to increase access to eye-care services as well as to improve the ability to advise on patient care remotely.
The standard equipment used to photograph the eye is expensive — costing up to tens of thousands of dollars — and requires extensive training to use properly. Primary care physicians and emergency department staff often lack this equipment, and although it is readily available in ophthalmologists’ offices, it is sparse in rural areas throughout the world.
“Adapting smartphones for the eye has the potential to enhance the delivery of eye care — in particular, to provide it in places where it’s less accessible,” said Myung. “Whether it’s in the emergency department, where patients often have to wait a long time for a specialist, or during a primary-care physician visit, we hope that we can improve the quality of care for our patients, especially in the developing world where ophthalmologists are few and far between.”
“A picture is truly worth a thousand words,” he added. “Imagine a car accident victim arriving in the emergency department with an eye injury resulting in a hyphema — blood inside the front of her eye. Normally the physician would have to describe this finding in her electronic record with words alone. Smartphones today not only have the camera resolution to supplement those words with a high-resolution photo, but also the data-transfer capability to upload that photo securely to the medical record in a matter of seconds.
Segun Oyeyiola Converted a Volkswagen Beetle to Use Renewable Power
Not only did Oyeyiola install a giant solar panel on top of the Beetle; he also inserted a wind turbine under the hood. As Preston explains, that allows air to flow into the grill while the car is moving, subsequently turning the turbine’s rotors and charging the battery at the back of the car. Oyeyiola also built a strong suspension system to deal with the weight of the battery itself.
It’s not perfect. The battery takes four to five hours to charge, but Oyeyiola says he’s working on that. The biggest challenges, he says, came from finding the best materials to use, and the people telling him he was wasting his time.
My message to my fellow students is that Rome was not built in a day. It is better to start anything you want to do now and don’t never, I repeat, never expect someone to believe in your dreams because they may not understand it as you do. Endeavor to follow your heart and do what will make you happy and that which will not affect your fellow being negatively.
It is so great to read what creative engineers all over the globe are able to accomplish.