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!
4 brothers in Western Kenya have begun solving water problems by creating waterpump windmills out of old bicycle parts and roofing materials. They have created 30 of them and are making good money doing it. This is another story of Africans solving their own problems using local materials:
The four Ututu brothers had inherited a large area of fertile farmland, which had been terraced by their father in the late 1950s. Despite this resource, they were experiencing problems because they lacked water both for drinking (meaning wasted time, fetching water from 15 km away in the dry season) and for irrigation (thus low yields from the meagre rainfall).
Most African children are forced to create their own toys from scratch. Below are some samplings of what they make with what’s available. Old tire inner-tubes, soda cans, mud, bailing wire and sticks are just a few of the materials used to create imaginative toys.
In just about every country in Africa you’ll find the boys making cars, motorcycles and airplanes out of tin cans and bailing wire:
In Southern Sudan children use mud to create animals to play with. Below is a picture of a Cape Buffalo:
The MultiMachine Group at Yahoo! Groups carries plans for “The Multi-Machine” which is
an accurate all-purpose machine tool that can be built by a semi-skilled mechanic with just common hand tools.
Multi-machines are 3 in 1 machines based on old car engine blocks (a 3-in-1 machine is usually a combination of a metal lathe, mill and drill press). The machines are designed such that they use the tolerances and engineering initially used to create the engine block that is re-purposed as the core of the tool to help guarantee that various components of the machine integrate with a high level of precision.
The machines have a design that not only allows them to be assembled using “elbow grease” but that also allow them to run on alternative power sources where mains electricity is not available. They are also easily adaptable to new purposes by adding on modules.
A young man has created a windmill out of spare parts in Malawi.
William Kamkwamba says one day while reading he came across two books, Using Energy and How it Works, which are about generation of electricity using a windmill.
On a trial and error basis, he managed to make a small windmill which generated electricity enough to light his dorm. Seeing its success he planned for a bigger one so that his parents could benefit and some well-wishers gave him money to get some of the materials he needed.
In total, he spent a total of 2200 Malawi Kwachas, which is equivalent to $16. William is saving his family money on home lighting expenses, recharges people’s mobile phones and radio batteries, and also charges his own automobile battery for backup power.
Unlike most windmills, where the propellers 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 spins a dynamo which in turn generates electricity.
Marlies sends an email and pictures of a water buoy that has been converted into a water tank for drinking. Ingenious uses of materials that might seem odd to Westerners at first glance are common place in Africa. The picture was taken in Lamu, a small island off the coast of Kenya.
She says,
“I recently had a chance of spending some time in Lamu where i came across an interesting observation which made me think of AfriGadget. Here is a picture of a water suspender made out of a buoy - very neat idea!”
If you have any pictures or stories of African ingenuity, send them to us at “main [at] thisdomain [dot] com”
Rajan Harinarain, a South African entrepreneur and inventor has come up with a temporary foldaway house for use in emergency situations complete with electrical wiring and fittings, doors and windows that can be erected by a small team in 5 minutes.
The patented structure weighs less than a ton, collapses to under a foot in height and can be modified with insulation/ventilation for hotter or cooler environments.
GeekCorps has a story about a Mali radio station that is using wifi to stream video content to TVs run on car batteries in the village of Bourem Inaly in Mali. What is particularly cool about this project is that the wi-fi antennae are all made locally by recycling local materials including cans. The only imported part is the audio/video receiver that is imported from Canada. The radio station currently has 15 subscriptions to the service that make it $45 a month.
Tools for specific needs can be expensive or hard to come by in some places in Africa. It could be something as simple as a certain sized wrench that is needed to remove a particular bolt.
I decided to take a short walk in Nairobi and just see what caught my eye. Bernard runs a small engine repair shop on the outskirts of Nairobi, Kenya. Mostly, he fixes lawn mower engines for the wealthy people living nearby, however he also fixes about any other small engine that you can think of.
The tools shown below are just what he works with. Many times he has to fabricate pieces that would be impossible to buy, or to expensive for him to make a profit on. It is really amazing to see him work, and to watch the problem-solving take place. As Bernard shows us in this video and pictures, your imagination and ingenuity are the only things holding you back.
Below, a piece of rebar is bent, and the end hollowed-out to make a specific sized wrench:
Below, a bolt from a truck tire is welded to a piece of metal to make a specific sized Allen wrench for small engines:
