Blog 2: Technology and Business in Tanzania

About forty minutes from the center of Dar es Salaam by car, near the Julius Nyerere International Airport, is a small fenced-in set of buildings in a town called Kitunda. These buildings house the Science and Technology Innovation Center and Laboratories, or STICLab. I had an opportunity to visit STICLab with my fellow interns and found both an inspiring story of entrepreneurship and a demonstration of the ever-increasing presence of technology and engineering in Tanzania.

Just getting to STICLab is an experience for someone from outside Tanzania. The main road to get from DIT to STICLab is the same road that Aarohi and I experienced coming from the airport into Mchafukoge, where our hotel is located. As a result, this road served as a kind of first impression of Tanzania. The main thing that surprised me was the number of people on the side of the street. It was striking to see so many people just walking around – some buying or selling various things and others seemingly with no definite purpose, often greeting other pedestrians as friends. Closer to the center of the city, many people were walking along the lines of traffic selling various foods and objects – in our first taxi ride, Aarohi and I were surprised to see a salesman approaching car windows to demonstrate two of the large knives he was selling. On the way to STICLab, we passed the same man before turning onto a side road.

This road, although somewhat less busy than other ones throughout Dar es Salaam, is representative of the road conditions we have experienced here .

The side road was like many smaller streets that we have seen throughout Dar es Salaam. While the central roads are not unlike those in the United States, the side roads are often made from dirt or sand. These degrade at certain points, leaving pits and bumps that make car travel slow, difficult, and bumpy. Along the sides of these streets are houses and businesses, many with hand-painted signs or advertisements and owners or customers standing outside, which gives these streets a welcoming atmosphere. On some of the roads, chickens, goats, and even cows owned by nearby families roam free. But while each street seems unique, many are not marked clearly or extend in seemingly random directions, making navigation difficult.

From where we finally left the cars, we walked down a small drive and past a house with several children playing in the yard. Just beyond this, STICLab is run from a similar house that once belonged to one of the founders.

STICLab is surrounded by a chain link fence and concentrated around the main house, which contains offices, an electrical/mechanical prototyping space, and a machine room with 3D printers, a CNC machine, a tensile testing machine, and three microscopes undergoing fatigue testing as part of an open lab instrumentation project. In this room, all devices except one 3D printer were built at STICLab.

Around the main office, there are several large pavilion-style tents with hydroponic farming setups as part of an ongoing process to cultivate lettuce within Tanzania. A few other buildings and tents that we did not get to see are arranged around the rest of the lot. One area contains the water tower for the property, on which a water level monitoring and redistribution system is being tested for a local hospital.

Paul Nyakyi from STICLab (to the left of the solar panel) showed our group several ongoing projects around the property.

In the open space between, a few men are cutting and assembling a metal frame for an unknown purpose. STICLab manages several projects at a time, variously funded by local and international grants or contracted by local businesses.

STICLab was founded by a group of students and one professor from DIT. They achieved early success for their MajiPesa system, a solar-powered water vending and tracking system that takes coins to dispense water while relaying various information to the owner of the machine through a web interface. The system is sold to those responsible for supplying water and helps them to easily manage several machines at once while increasing the simplicity and transparency of water transactions.

This picture from the project website shows a MajiPesa system installed in an area of Dar es Salaam – “Maji” means water and “Pesa” money in Swahili.

In Tanzania, these water distribution points are often the only nearby source of water in a community. As a result, they have historically been a gathering place for community members. An article on NewGlobal accounts how one MajiPesa owner has set up retail spaces near the water system; the businesses that rent the space will have guaranteed foot traffic, improving their reach and profitability. Thus, MajiPesa has served as a method of bringing technology and entrepreneurship into a timeless cultural fixture. This is a great example of Tanzanian design focused on uniquely-African needs – because water delivery is not common in many areas of the world, no comparable system existed.

For contrast, we can look at PlayPump, an oft-cited example as a failure of global engineering design. The PlayPump was a high-profile effort aimed at solving the problem of water availability in village settings across Africa (focused in South Africa) by harnessing the energy of school children spinning a merry-go-round to pump groundwater from an aquifer into a water tower for later access. The successes and failures of the PlayPump have been analyzed extensively in media, from travel and global health blogs to PBS’s Frontline.

The PlayPump aims to use existing energy resources to increase water availability (Photo).

The PlayPump achieved success in some settings but is generally thought of as a failure because it was expensive, ineffective in some regions, and prone to failure without regular maintenance. In addition to some engineering, ethical, and basic feasibility concerns, the PlayPump failed to properly anticipate two important considerations in global low-resource design – maintenance plan and cultural interaction.

The success of a maintenance plan is largely dependent on the presence of capable technicians and the cost of repairs. Each PlayPump has an initial cost of about $14,000 to cover materials, installation, and water testing this cost is provided entirely by donors. In an attempt to offset some of this expense, the water tower contains two company advertisements. While it is difficult to know the exact economics of this, it is reasonable to say that the majority of funding still came from donors. In addition, maintenance has to be provided from donor funds. Because funding has to be secured for any repairs, PlayPumps have faced the issue of breaking and sitting unused for long periods. This reveals a major flaw with the PlayPump model – that the community has no stake in the technology. It is designed, funded, and installed by outside sources and relies on external maintenance. Even if someone in a certain community has the skills to fix a broken pump, they lack the funding and motivation. The lack of motivation comes from the other consideration, cultural interaction.

While choosing the energy source of children playing shows some consideration of cultural setting, the PlayPump displays an ignorance of the way that water is traditionally acquired in these communities: community members, often women, walking to the nearest water source and retrieving it. This became significant because the solution did not account for this existing tradition; in fact, the PlayPump eliminated this source of social interaction entirely when it was able to work successfully. This decreased motivation to repair the pumps significantly. The cost and hassle of repairing the PlayPump were so high and the community stake in the technology so low that the device was unlikely to be repaired.

Although MajiPesa is meant for a different environment and solves a slightly different problem, it is a tremendous example of the future of design that Rice 360 and other global design institutions are trying to support – solutions driven by local stakeholders that account for the needs and cultural settings of the area. The differences between MajiPesa and PlayPump on these factors are striking. While PlayPump was driven by outside donors, MajiPesa is created by a local company and owned by local entrepreneurs. This means that when the system encounters some issue, a local owner is financially motivated to fix it and can lean on resources that are available locally to get the technology repaired. More significantly, MajiPesa not only accounts for but embraces local cultural resources. It replaces the outdated parts of water supply without ignoring the role of water gathering in the community. In fact, adding transparency and consistency to the system has allowed for the incorporation of technology and business into the existing behavior. Because the technology is locally designed, it can also adapt to the rapid changes occurring in Tanzania. When the machine was first prototyped, it took only coins to dispense water. In recent years, however, m-pesa (a mobile money transfer system) has become popular in Tanzania; in consideration of this, current MajiPesa machines will soon take m-pesa payments to dispense water. Designs like the PlayPump that are subject to outside funding and generate no community stake do not adapt to a rapidly-changing modern Africa.

As I reflect more on STICLab, I am convinced that this kind of innovative maker space/business is critical to the successful advancement of technology in Tanzania and similar countries. From the interaction we have had with the people at STICLab, it is difficult to get a complete picture of how the business functions. It is clear, however, that it is built around a group of good engineers using available resources to provide feasible, lasting technologies suited to the unique needs of their environment. This allows STICLab to use cutting-edge technology while still maintaining a connection with the local environment. Over the rest of my time in Tanzania, I plan to consider how this spirit and business model can be adapted to satisfy medical needs, which often require even more complex funding sources and market considerations.

2. Stripping Wires, Cutting Wood, and ‘Making Do’

My favorite part of electronic prototyping is stripping wires. There is something very soothing about stripping wire after wire- first making a slight incision that just goes through the plastic covering and then removing the piece of covering entirely, leaving behind a small exposed bit of copper. At my high school in India, there was always a shortage of wire cutters- and we learned how to use scissors instead, or- rather unhygienically, our teeth. At Rice, we have plenty of wire cutters and strippers- allowing me to settle into the comfortable routine of using handy, precise, modified scissors for all my wire needs.

A couple of weeks ago, I had to cut and strip some wires at the DIT Design Studio to make a basic LED circuit. The design studio was still in its very preliminary stages. Apart from the supplies Matthew and I brought over from the US, we had two utility knives, some pliers and screwdrivers from the assembly of the 3D printers, and Julia’s personal toolkit with a wrench, hammer, and screwdriver. No wire cutter or stripper, no scissors, and I really did not want to use my teeth unless it was a last resort. So, I picked up the utility knife. I used the blade to make the small incision and yanked the plastic covering out with my fingernails. Not the most appropriate tool to use, but it worked, and it was kind of fun!

This reminded me of the time that I had to cut a foam block to prototype something in my GLHT 201 (Introduction to Global Health Technologies) class at Rice. There was no saw or utility knife in sight, and a scissor was not going to cut it, the block was way too thick. I picked up a box of toothpicks and a scissor. Using a toothpick as a nail and the side of the scissor as a hammer, I made small holes along the line I wanted to cut. At one point, the makeshift hammer missed the mark and the toothpick went through the skin of my finger. I immediately discarded this hazardous endeavor and changed gears- I opened the scissor so that it looked like a knife and used it to complete the job, which was made remarkably easier due to the perforations I had made with the toothpick.

A rather old picture of me cutting a foam block with a makeshift scissor-knife

These seem like small, almost obvious substitutions, but in the past weeks, as the design studio continues to grow and become more stocked with supplies, I have learned how to use our limited resources for a variety of different purposes. With just a (rather flimsy) utility knife, hand-drill and screwdriver, the interns and I reproduced the CleanMachine, a GLHT 360 device that we hope to get feedback on. I learned that a screwdriver can be used to puncture plastic and foam, and a drill can be used to cut off whole pieces of plastic and wood, and with enough force and the right angle, a utility knife can cut through nearly anything within reason. These methods are not the safest, nor do they give us the best results. However, armed with safety goggles and gloves, I have learned to think laterally, look beyond the obvious use of tools, think on my feet, and adapt to circumstance.

Our initial collection of mechanical tools

 

Our prototype of the Clean Machine, featuring Joel, who agreed to be my model for this picture

I realize that I am so fortunate to have the immense resources of the OEDK at my disposal when I am at Rice. For so many other universities around the world, like DIT, these resources are not something they can take for granted. The other day, Julia and I visited the woodworking workshop in the hope that they would have a saw to help us cut some wood. After looking around for a saw unsuccessfully, we met someone working there and requested him to help us. He could not find a saw either, so he took us to his worktable and used a hammer and chisel to cut the wood. I was surprised that there were no saws readily available for use at a wood-working workshop- at the OEDK, I wouldn’t have to think about their availability. Perhaps we are so used to having the most appropriate, super-specialized tools for every task that we often forget the myriad uses of the most basic tools? I realize that as we continue to innovate medical devices in low-resource settings it is important to think of these various uses while creating devices that are truly self-sustainable.

As the design studio becomes more populated, we have begun to buy tools, and now we can use the “correct” tools for the “correct” purposes. This will save us time and effort during prototyping. However, I can’t help but think that while working within constraints, we learn to empathize, look beyond obvious solutions, and truly make sustainable innovations in low-resource settings. As I spend more time with the DIT Interns, I have observed that they think about things and the uses of tools differently than I do. A lack of resources does little to faze them in achieving their eventual goals. There seems to be a spirit of “jugaad”- an untranslatable Hindi word that refers to the spirit of ‘making do’ with the given resources or using innovative hacks- the use of the ‘duct tape’ to solve almost every problem, ubiquitous in developing nations. When we eventually do needs finding research here, we have been told to look for the duct tape- find the makeshift solutions so that we can help create permanent ones. But I can’t help but wonder- those makeshift solutions are often so creative, innovative and practical. Wouldn’t it be terrible if we did not incorporate a bit of this spirit while designing our technologies?

Blog 1: Communication

“It tastes like something, but I can’t put my finger on it..”
“What do you mean? What do you put your finger on?”
Today I tried ugali for the first time, and in the process remembered how important it is to foster good communication.

Ugali is a dense cornmeal substance served beside and used as a tool for eating green vegetables, meat, beans, and other substances. I now know that something is polenta.

Here in Tanzania, the national language is Swahili with English also being used in many governmental and educational settings. On becoming independent in 1957, the first president, known often as Mwalimu (“teacher”) Julius Nyerere, established Swahili as the national language, with students being taught in Swahili through primary school and then in English for secondary school. This was an effort to unite speakers of the over 100 regional or tribal languages present in Tanzania. Today, most natives speak both a tribal language and Swahili.

The adoption of an official language, among other factors, has led Tanzania to develop a strong national unity. However, this can make it harder for outsiders to communicate. In countries like Malawi, where no one language is ubiquitous, many people are familiar with English. In Tanzania, however, it is unusual for us to meet someone outside of the university or hotel with conversational English skills. Even at the university, most non-technical conversations default to Swahili. For those in the outside environment that do speak English, they likely do not speak enough to engage in more technical conversations; this becomes significant when identifying needs and interviewing technology stakeholders.

Throughout my life, I have had the luxury of never having difficulty communicating. In my daily life in the United States, it has been a continuous assumption that anyone I communicate with will be able to speak English; additionally, they will often understand the idiomatic language that is used. At Rice, I have been working on projects with those of a similar or complementary technical background – this has led me to communicate with certain assumptions about the knowledge and perceptions of the other person. With this mindset, it is easy to become frustrated if a team member does not understand a discussion.

The language environment here means that it can be difficult to communicate about medical or engineering concepts. While the engineering students are well beyond what I would consider fluent, many phrases or technical words do not translate well or are not used frequently enough to be recognized. Other things are just described differently here – some (like lift) are familiar, but others (like using soldering gun for what I would call a soldering iron and soldering iron for what I would call solder) result in miscommunications that require us to stop and clarify terms. Additionally, the design team comes from multiple disciplines within engineering and Aarohi and I are the only bioengineers. Thus, technical terms are often not shared and must be clarified.

Over the week of work that we have done so far, I have been forced to reevaluate the way in which I communicate. Sometimes I am not clear in my definitions, and other times I do not understand concepts with enough depth to describe them without using specific key words. Over my time here, I must work on my ability to clearly communicate technical concepts to a variety of different audiences. I will work to better identify whether everyone in the conversation is speaking in the same terms and understanding each other fully. Because of this, I believe that I will return to Rice a better engineer and communicator of technical concepts.

 

 

 

1. Dar’s treating me well so far!

It has been a week since we landed in Dar es Salaam, and Matthew and I are rested, settled and ready to begin our internship! After long and hectic journeys, we arrived in Dar last Monday afternoon. We checked in at our home for the next two months, the Sophia House Hotel and Apartment. Our spacious fifth-floor room, located on the terrace of the hotel, has two bedrooms, a shared bathroom, common space, and a kitchen. The staff at the hotel have been incredibly kind and helpful and made us feel welcome. From helping us get our stove fixed so that we could cook homemade meals, to helping us carry our (very heavy) luggage up five flights of stairs, they have made every effort to make us very comfortable.

On the day after we arrived, we met Dr. John Msumba, our boss for the next two months. We also met Joel and Anicia, two of the four interns from Dar es Salaam Institute of Technology, who will be working with us during this internship! Joel, Anicia and Dr. Msumba helped us carry all the design space supplies (5 suitcases, approximately 250 lb!) all the way from our room to DIT. After a short meeting with Dr. Msumba in his office, we got a tour of the room designated to become the design space. Airy and naturally lit, the seventh-floor room has large windows along one wall and is furnished with tall wooden tables and stools. It is a lovely place to work, and if we let the windows open, a cool breeze fills the room. As I mentioned before, one of our tasks for this internship is to convert this room into a design studio for DIT, one analogous to the OEDK at Rice. Not only will this studio be used by us during the internship, it will also serve as an interdisciplinary, creative, engineering design space for the students of DIT. As soon as we saw the room, I could envision the fully functional design studio. Matthew and I planned to spend the first week of our internship setting up the studio: rearranging the furniture, unpacking the supplies we carried from Rice, and conceptualizing what the space should look like.

The beautiful view from the window of the DIT design studio

We soon learnt that Wednesday, Thursday, and Friday were holidays because of Eid-al-Fitr, and our internship would only officially begin on 10th June. We would have five free days to get acclimatized and get over jetlag. Although this prospect seemed exciting at the time, by Friday I was bored and missing work. Luckily, Dr. Msumba invited us to meet him on Saturday, and we began work on the studio. We rearranged all the desks, came up with a schematic for the use of the space, and began setting up one 3D printer. On Sunday, we met with Julia, the new manager of the DIT design space, and spoke to her about our tasks and plans for the internship.

The redesigned design space with the building of a 3D printer in progress

With enough time to rest and get systems in order, I now feel primed to make the most out of this internship. We have a routine set- we walk to DIT in the morning, eat traditional Tanzanian fare for lunch in the DIT canteen with the interns, and buy groceries for dinner on the way home. I already feel so inspired by the people we have met so far. Anicia is one of five girls in her seventy-person mechanical engineering major, Joel has been untiringly teaching us Swahili, and Dr. Msumba’s incredible vision and passion for the design studio and the future of engineering education at DIT is infectious. I am so excited for what the next two months will bring. We’re learning some Swahili, eating our vegetables, meeting new people and learning new things every day!