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Satellites (going up in 2013-2014) will provide WiFi coverage over Africa, but their frequency range can't transmit signals through rain. WiFi towers do work in rain. Many African tribes are nomadic, moving around in search of water and food. Your job is to find locations for new towers to maximize the number of people with WiFi access, taking into account the data.
Demo: http://www.youtube.com/watch?v=tfDULO83dpU
Tasks: