On Monday Hou In Cheong and Jialin Ye fly in from the University of Illinois to volunteer their engineering skills for eight weeks on VTS' SafaPani (arsenic-free water) project. Over the next ten days another eleven or more volunteers arrive to assist with SafaPani and Looma, a computer/projector/sound system/webcam-in-a-box that will bring the world (a world of content) to any school, anywhere...including some schools served by VTS' WireBridges.
The story of VTS is in this attached PDF. We ask skilled volunteers to solve major problems, and if successful make the results available to the people who need them. That's how the WireBridge was created.
Many hands built the WireBridges. The design works well--it is simple, inexpensive, and carries passengers safely. The team that built the 38 WireBridges in Nepal still exists, and can build more and maintain them.
But the story isn't over. Maintenance for the WireBridges is possible only if the repair team can be paid--so a major (and we hope our final) development challenge is to persuade the government to allocate the funds for proper annual maintenance. A WireBridge costs about the same as a modest auto ($20-25,000), and the annual repair costs are about the same as for a car-around $600.
See below the story of VTS as told by Barbara Wood of the Almanac:
It took them nearly two days to reach us at our Nakhu river worksite. Their last few miles were by country bus, but most of the trip was on foot, on trails over ridge after ridge. Thirty miles from Kathmandu, the Bagmati river always forced a day-long detour whenever they needed to reach the nearest health post. When word reached them that someone was building a new kind of bridge, that was good news, so the community sent a delegation.
But there was no bridge. We were designing the WireRoad system--which we hoped would offer an inexpensive public 'mono-wire' carrier for rural transportation. The villagers pled their case but we explained that we had no idea how to adapt this technology to be a bridge.
When the villagers appeared a second time, it was clear that we needed to pay attention. A bridge was what they really needed, and the WireRoad should wait its turn.
For 18 months we induced every engineer we met to visit the Nakhu worksite, asking them for suggestions as we experimented. The villagers, by then accustomed to the multi-day round trip, said finally that the design was 'good enough' and asked to have it installed. They insisted that the experimental carriage, cut and welded dozens of times, be theirs--no need for a new copy. They knew it well.
The word of that first bridge spread like ripples from a pebble dropped in water. Soon other villagers in the region came to see it, then came to us asking for the same.
In a few years the core technology was settled, and today 38 have been constructed. The market did speak.
We eventually returned to that original WireRoad project and completed a working model, but social unrest at the time prevented any significant infrastructure construction. Here is what that system looked like:
These 'locomotives' are being adapted for use in the banana farms of the world.
That's where this technology originated that now appears in Nepal's WireBridges.
In two weeks the Museum of Science in Boston will complete a short video about the summer 2013 upgrade of a WireBridge in Nepal. As we reported last time, a remarkable series of events caused this village's WireBridge to be repaired:
And it is no surprise that what these gifts brought to these children was ... 'health, education, and hope'. In the next report we will post a link to this beautiful video. For now, here is the trail to school--and the river now bridged: