Author Archive

Bio-Diesel From a Small Village in Sierra Leone

Makeni is a small town in Sierra Leone. Like the rest of the country, it is trying to recover from years of internal strife. Unlike the rest of the country, they have the Binkolo Growth Centre, a small industrial project near Makeni where the manufacture of small farm implements, tailoring, carpentry and blacksmithing takes place, and includes the use of disabled people. Two VSO volunteers, one from Kenya one from Canada, work to train and bring new ideas to the centre.

One such idea was to create a fuel replacement for their pickup by using local palm nuts, a by-product of the palm kernels, which are generally fed to pigs or used for fertilizer. Since diesel fuel for their truck runs approximately $5/gallon, it wouldn’t hurt to try.

Palm Nut Crushing Machine

It became clear that in our poor country the chief hurdles were getting the chemicals and the right equipment. The search was on for the chemicals and after quite a treasure hunt and more than a few bribes we managed to find 4 litres of Methanol and 5 kilos of Potassium Hydroxide (enough to make a good bomb I think)…

…Actually the whole scene was quite amusing. Here we were hoping to compete with the big oil producers in the back yard of a small village and using an untried collection of old car parts, old pipes and taps attached to a used chemical container, all put together in an image downloaded from the internet. Nonetheless we were fuelled by much excitement, with much of the local community looking on, wondering what on earth we were up to.

Read the rest of this great story, and see a lot more images, on Paul in Sierra Leone’s Blog!

The Team behind the bio-diesel project in Makeni Sierra Leone

The Truck running on bio-diesel

(hat tip Emeka)

Mobile Phone Ingenuity in Africa

This last week I had the opportunity to catch up with one of my favorite bloggers, Jan Chipchase, while we spoke together on a panel at the Global Philanthropy Forum. Jan works for Nokia as what can best be described as a design and usability ethnographer. He explores the way mobile phones are used worldwide and reports that back to Nokia’s design team. He’s a fascinating person to talk to, and I thought I might highlight some of the stories he’s come up with while exploring in Africa.

Creating a new mobile phone from old phone partsOne of the consistent themes of Jan’s message is that it in each country he visits there is a booming market of hackers and mobile phone mechanics who are doing all kinds of interesting things. They are taking the designs of the West and applying them to their lives, modifying them and making them work for their local needs. From Accra to Nairobi, there is always a “cell phone alley” for you to buy, repair or customize your mobile phone.

In a post titled, “Recycled, Upcycled: Remade” he tackles the question of whether it is possible to create a phone completely of recycled parts.

Of all the internal concepts I’ve followed this year this is one I keep returning to, not least because sustainability is a pressing issue in a billion+ products-per-year industry - but also because the team tackled a number of related weighty issues in what was a far reaching project. I hope that in due course more of their design thinking makes it into the public domain, not least to stimulate critical feedback from people like your good selves.


Dual SIM card in Accra, Ghana

One of the more interesting innovations is the development of a dual SIM card hack so that users can access multiple carriers.

This product has two SIM card slots in a single phone - primarily to support price sensitive/prudent consumers who wish to optimise their call costs by maintaining SIM cards from two different phone operators. As in many countries - calls to a customer using a different Ghanaian operator cost slightly more than those on the same network.

There are many more examples of mobile phone use in Africa and the ingenious solutions that locals come up with for their particular situations on Jan’s blog. The last image that I want to show is of the Village Phone project (by Grameen Bank) happening in Uganda. Jan has taken an excellent picture and annotated it with the important facts about this project in a rural Uganda.

Village Phone setup in rural Uganda

For more information about Jan, read this recent NY Times article about him, and of course subscribe to his blog, Future Perfect.

Fighting Hunger, One Village at a Time

The Universal Nut Sheller (UNS) is part of the Full Belly Project. It’s really an amazing story about a device that has had a direct impact on a number of African countries. The story goes that Jock Brandis, an American inventor, was on a trip to Mali and saw some women who had been shelling peanuts leaving them with bleeding hands. This spurred him on to create a device that would help end hunger.


The Universal Nut Sheller in Africa
(Watch a video of a pedal-powered one in action)

How does it work?

The process works by centrifugal force and friction. The Universal Nut Sheller is basically a concrete cone within a cone, open at the top and bottom, with the interior cone being solid. The interior cone, or rotor, rotates on a shaft and has an attached handle (Note: only one moving part!). The user turns the handle around fast enough to spin the nuts to the outside through centrifugal force. The nuts fall between the surfaces and are rolled and squeezed, allowing the nuts and shells to fall through to the bottom. This mix of nuts and shells is then winnowed out, the old fashioned way.

Reach and Impact
According to the Full Belly Project, this machine is being used in 12 African nations, including; Mali, Uganda, Malawi, DRC, Gambia, Ghana, Kenya, Nigeria, Senegal, Sierra Leon, Sudan and Zambia.

The nut sheller is being used to shell more than just peanuts. As new villages take up the device, they turn it towards their own diverse nut shelling needs, such as jatropha, neem nuts, shea nuts or coffee.

Most importantly, he Universal Nut Sheller costs about $50-75 dollars to make, depending on the price of local materials, and will serve the needs of a village of 200 to 1000 people.

Like two past projects that we’ve highlighted on AfriGadget, this one is encouraging. Both the recently profiled see-saw power machine (possibly), and the KickStart pumps are based on the belief that sustainable economic growth comes through empowering local entrepreneurs to start, or extend, their businesses. In fact, the plans for the UNS are free and downloadable.

(Via Kaushal)

Powering African Schools with Playground Toys

Dan Sheridan and his see-saw power idea for African schoolsThe BBC is running a story on a young inventor, 23-year old Daniel Sheridan, who has designed a teeter-totter (see-saw) that can be used to power school classrooms in Africa. His ultimate goal is to see a whole playground of energy-creating equipment.

“The current need for electricity in sub-Saharan Africa is staggering. Without power development is extremely difficult. The potential for this product is huge and the design could be of benefit to numerous communities in Africa and beyond.”

The idea came about after travels to East Africa, where he taught at a school and was inspired by the students. Daniel developed the see-saw power design as part of his final year at Coventry University. He has calculated that five to 10 minutes use on the see-saw could generate enough electricity to light a classroom for an evening.

Some Thoughts
What would be more interesting would be to see this idea built out with local supplies, as Daniel is going to be doing soon in Uganda. Then, with the knowledge learned there, see if it could fall into the same model of micro-entrepreneurial devices that we see with the KickStart water pumps. Speaking of which, this also reminds me of the PlayPumps idea, which also has a lot of potential.

Daniel states, “The unique selling point of this product is that it is not intended as a profit-making design.” I can only hope that he means this as profit for him. Profit making on the ground by Africans of this type of design could be crucial for its long-term success.

AfriGadget on the BBC/PRI “The World”

AfriGadget’s second monthly BBC/PRI interview with The World is now live. Juliana, one of the editors who also blogs at Afromusing, was interviewed this month. You’ll hear her start talking at about 17:15 in the podcast.


Juliana of Afromusing - an AfriGadget editor
(I took this shot of Juliana while at DEMO, where we did a panel on tech in Africa)

It’s been a lot of fun to start sharing some of the stories and vision behind AfriGadget through the radio. Clark Boyd is a real pro, so it makes it easier for us amateur radio interviewees to figure out what we’re doing. (thanks Clark!)

The World’s tech podcasts are done weekly (Friday), you can find out more on their site and subscribe there. If you’re interested, you can also follow it through Twitter and Facebook.

AfriGadget Gets a New Look!

We’re proud to announce a brand new design for AfriGadget! The old design was rather old and ugly, so thanks for putting up with it for the last 20 months. Actually, I think the reason that there are so many more RSS subscribers to AfriGadget than daily visitors can be attributed to how it looked… :)

AfriGadget Redesigned!

2 New Things:

You’ll notice two buttons just beneath the header. We’re working on a number of items, two of which we’re ready to unveil.

The AfriGadget Grassroots Reporting Project
We’re intent on getting more AfriGadget contributors from all over Africa. Part of that plan is to find potential editors and set them up with a mobile phone with which to take pictures and do interviews. If you know someone that would make a good fit, let me know.

The AfriGadget Store (phase 1)
The first phase of the store is making some AfriGadget gear (t-shirts and mugs) available to everyone (hint: you can customize any design and select any type of shirt/color to put it on). The next step is to create a full-featured store with some of the items that are made by the entrepreneurs shown on AfriGadget. This would include products, as well as plans.

One of the big goals here is to create a service that doesn’t just publish interesting stories about African micro-entrepreneurs, though we do plan on continuing that, but to also explore ways that we can be a conduit back to those very same people. This redesign already has our future plans for dealing with entrepreneurs built into it. Part of that is the future phases of the AfriGadget store, but we’re also looking at ways to partner with others and encourage direct investment into worthy entrepreneurs businesses.

Look for more on that in a future update. Until then, we’re just happy we have some new stuff to show you!

If you find any errors, which I’m sure there will be some, please leave a comment or shoot me an email.

Lastly, a special thanks goes out to Jared for making this site look so good.

Dr. Ngalande’s Sugar and Yeast Power Generator

Over the weeks since the first post we did on Dr. Cedrick Ngalande’s inexpensive power source for Africa, we’ve been emailing back and forth about his invention. Yesterday, he sent me a link to a video of his device on YouTube.

“The rotor moves slowly most of the times but does pick up at certain intervals. This process continues for many hours. Since the rotor is quite heavy (and hence more inertia) a small geared DC motor can be connected to the rotor to generate power for cell phones, $100 laptops, and other things in Africa. People can leave this thing to charge their phones/$100 laptops overnight.”

Read the rest of this entry »

William Kamkwamba in the Wall Street Journal

We’ve written about young Malawian William Kamkwamba a couple of times here on AfriGadget, so it’s great to see him getting recognition in the WSJ! The article is titled “A Young Tinkerer Builds a Windmill, Electrifying a Nation“. Take a look at the video:

Read the rest of this entry »

Malawian Invents a Power Source Made for Africa

Victor Kaonga points us to Dr. Cedrick Ngalande, a Malawian, who has built a prototype power source made specifically for Africa. It generates power using sugar and yeast for up to 8 hours at a time.

Mobile phones are big in Africa, however it’s a real challenge to power them. How about night time electrical lighting, rather than paraffin lamps. Of course, in Africa we can think of all types of applications that this device could be used for.

Electric power by sugar and yeast

This gadget will be very ideal to developing countries like Africa where electricity is scarce. As you know, the growth of cell phone is fastest in Africa. The problem most Africans have is that they cannot charge those cell phones due to lack of electricity. Some have to walk long distances just to charge cell phones. My invention will make it easy for these people to charge their cell phones. Also, this generator can be used to charge $100 computers which are being introduced in Africa. It can also be used to charge or operate medical devices in rural Africa.

On a side note, I love seeing inventions made by Africans for Africans. It’s only by living and being a part of the everyday life that you get past the surface issues and start to really understand the real problems to be overcome. Personally, I love this story; it’s ingenious and African - just what we like here on AfriGadget!

If you have any stories, pictures or videos of ingenious African solutions, send them to us!

(hat tip: Soyapi)

One Man, an Airplane and a Hummer

Mechanic and Plane MakerThere’s a really interesting story about a man in Kenya who claims to have created a plane from scratch.

Using a Volkswagen beetle engine, and aluminium sheets for the body, Mr Gachamba made a single seater plane.

He tested it out at an airstrip in Nyeri and sure enough, it took off. Caught up in the excitement of the minute, he decided to fly to his home in Mathira.

A few minutes into the ride, he noticed the engine was overheating. He decided to turn and in the process the low flying plane struck a tree top and crash landed. He was injured in the leg and has had a limp since.

(Read the rest of the article)

I’d love to see pictures of this plane, though I’m doubtful of there being any as this happened in the 70’s. Either way, a fun story. Right now he’s building his own Hummer from an old Datsun engine and “wheelbarrows, wheelchairs, metal pipes and other vehicle accessories”. At 75 years old he’s not slowing down at all!