Transport
| Topic | Last Post | Posts |
|---|---|---|
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Depending solely on gravitational force, gravitational ropeways are simple, inexpensive to operate, and environmentally friendly |
posted on 1/1/70 |
1 |
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Improved Tuin river crossing technology can provide a sustainable solution to people living in isolated, rural and mountainous areas |
This is very effective on how people ... posted on 16/10/11 |
1 |
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A simplified donkey-pulled cart allows farmers to transport all their produce to market in one trip |
posted on 1/1/70 |
9 |