BBC World Service - CrowdScience

Why Do We Have So Many Accents?

What makes us sound so different from each other – even when speaking the same language?

Can a rain shower really cause aches and pains?

Science meets film in a special edition recorded live at South by Southwest Festival, USA.

Can we blame our weight on factors like genes or our environment?

Trees take in carbon dioxide but they also convert some of the toxic gases in our air.

We see a robot at work in the operating theatre and meet the robots Molly and Pepper.

Being social has lots of benefits – so why do cats live alone?

Examining the evidence that humans could somehow come back into existence after dying.

Earth’s surface may be 70 percent water but many places are struggling to access it.

The history of time-keeping and the science behind the most accurate clocks today