Water Harvesting by Roadside Plant Nursery

David Mwangi has run a roadside tree and plant nursery outside of Nairobi for four years. In Kenya, you have to work around the two seasons (unlike the 4 in the West). The rainy season where everything is fine, and the dry season where your plants will likely die. This gets even worse when a drought happens.

David had the idea to dig a ditch down the side of the road and channel that into two 2-meter deep water catchments. The water is used to support the plants during the dry season and he never runs out of water, even during a drought. He has also stocked the pulls with fish (Tilapia), that he and his workers eat. A third byproduct is that the rain water being diverted doesn’t further erode that part of the road.

It’s a lesson in simplicity married with low-tech ingenuity coming together for increased business profitability.

Here’s a short video, where one of my friends translates for David:

More pictures available at the Flickr AfriGadget group.

If you have any stories or pictures of African innovations and ingenuity, please contact us.

Kickstart Technologies: irrigation, and cooking oil human-powered pumps

I met the managers of Kickstart technology at the recent TED Global conference in Arusha, Tanzania. Kickstart’s patented technology bridges the gap between expensive industrialize equipment used to pump, squeeze or pack and all it’s products are human powered. This is a very important feature in Africa for the Base of the Pyramid (BOP) market, because it solves the issue of energy and cost for equipment used in agriculture, and construction.

Kickstart’s most popular product is an irrigation pump that uses the stepping motion you see in a work-out gym to move water hundreds of feet to irrigate land. Kickstart also has been able to sell several thousands of these products all across Africa, and has been approach by the United Nations to sell globally.

Below is the irrigation pump

Kickstart pressing pump for building construction

Below you can see a picture of a person squeezing seeds to make oil

Here is a little more about Kickstart from the organization’s website.

About KickStart

KickStart’s mission is to help millions of people out of poverty. We promote sustainable economic growth and employment creation in Kenya and other countries by developing and promoting technologies that can be used by dynamic entrepreneurs to establish and run profitable small scale enterprises.

Go to the organization website

Made From Scratch Model Airplane

Phillip Isohe is a metal fabricator in the jua kali, non-traditional industrial sector, in Kenya. In his spare time he builds models of airplanes and buses. This seems to be an extension of what many of us did while growing up in Africa – building wire, or tin can, cars. What’s most interesting is the excruciating attention to detail that he puts into each one. In fact, they each have motors with working lights, steering, engine and interiors.

Phillip had just sold one of his buses, so the only other one I have a picture of is only half-built (picture). However, he did have a finished and working model airplane. It was amazing to see how each piece, engine included, was built from scratch. It’s not every day that you see this kind of detail work on hobbies, no matter where you are in the world.

The models take him 30 days to make and goes for about 25,000/= ($370). That’s likely just his “starting price” though, and they probably sell for a good deal less when he really wants to move it.

Here’s a short video of the model plane:

More pictures:

model airplane engine

More pictures like these can be found on the AfriGadget Flickr group.

William’s Windmill

William’s Windmill, originally uploaded by whiteafrican.

Inspiring, innovative and representative of what Africa’s future holds.

William Kamkwamba is a 19 year old Malawian who built his first windmill at 14. Here he is, pictured just this last week doing some work on his windmill near his home.

The propellers are made of plastic pipes supported by sticks to that they should not bend when the wind is strong and placed almost vertical to the direction the winds is coming.

Unlike in most windmills where the propellers directly turn the spindle connected to the turbines directly, William added pulleys to his machine to increase speed thereby generating more energy.

There are three pulleys and the last is connected to a bicycle wheel. When this wheel turns it turns a dynamo which in turn generates electricity.

Read his blog for inspiring stories about making things work in rural Africa!

Read more on William’s Windmill blog in Malawi.

The knife-sharpening bicycle

Peter Kahugu of Banana Hill just outside Nairobi makes a living using his bicycle.

And no, he is not a professional cyclist.

AfriGadget reporter Afromusing and I had an opportunity to interview Peter who has modified his bicycle with a belt, a set of tensioning pulleys and a grinding stone to make it a knife-sharpening machine. By kicking the bike up onto its stand and engaging a gearing system, he is able to use “leg-horsepower” to drive a grinding wheel and sharpen knives while “on the move”.

Peter has been at this for 2 years now and he makes about Kshs 500 ( app. 10 US$) a day by riding his mobile workshop from client to client sharpening all their knives as he goes. The grinding stone he uses has lasted an astounding 2 years and he has had to replace his drive belt a couple of times but that is as simple as cutting up a long strip of rubber from an old car or bicycle tire inner tube.

Be sure to click though on the image for video on YouTube of the Peter and his bike in action.