Governments around the world are trying to improve urban life by adopting digital technologies and creating Smart Cities filled with sensors. Who are these projects benefiting and how smart are they?
Mobile-phone data looks set to change the way infrastructure is planned in the developing world.
If you have a cell-phone camera, the NaviLens system can give you vital information about where you are.
The discovery may explain how these buildings have survived for so long in earthquake zones.
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