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The evidence on when is the right time to give a child their own smartphone is poor, but there are key moments where the risks are higher (Credit: Nicolas Asouri/AFP/Getty Images)
Family Tree

What's the right age to get a phone?

By Kelly Oakes

Electronic devices contain many precious metals and rare earth elements, but much of it is extracted in polluting, toxic places such as Guiyu in China (Credit: Getty Images)
World-Changing Ideas

The untapped gold mine in old phones

By Bianca Nogrady
(Credit: iStock)
The Curious Cases of Rutherford & Fry

Why people shout into mobile phones

(Credit: iStock)
Life:Connected

Do you need a more balanced tech diet?

By Tom Chatfield / Illustrations by Olivia Howitt
(Credit: Getty Images)
Best of the Web

A world built for bullies

By Robert Cottrell
Ghost photography
Technology

The weird ‘ghosts’ in phone pics

By Howard Timberlake
(Credit: Thinkstock)
Tomorrow's Lives

‘I hack phones with touch alone’

By Rose Eveleth
(Josh Pulman)
Life:Connected

What your phone does to your mind

By Tom Chatfield
(Getty Images)
BBC Campus

Biggest myth about phone privacy

By Molly Crain
(Copyright: SPL/Thinkstock)
In Depth

Trash talk signals mobile future

By Roland Pease
(Copyright: Maliyo)
Matter of Life & Tech

A FarmVille for Africa

By Clark Boyd
(Copyright: Thinkstock)
In Depth

What is killing smartphones?

By Roland Pease
(Copyright: Getty Images)
Matter of Life & Tech

Smart cards that top-up health

By Jonathan Kalan
India farmer on mobile phone (Copyright: Getty Images)
Technology

How to water a farm with a phone

(Copyright: Getty Images)
Life:Connected

The price of computer nostalgia

By Tom Chatfield
(Image used under Creative Commons from mLeanring Africa)
Matter of Life & Tech

What Africa can learn from phones