Earth Beat, 17 February 2012. We look down at our feet and what they do on this planet. From learning to love a city over a three-year walk through it, to how playing soccer has changed the lives of those living in many African villages, to tracking stolen bikes, we look at using pedestrian power to explore and enjoy the world around you. Comment on the show.
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Walking your way round Delhi - listen in new player
He began with lunchtime walks and became so infected by the people he met and sights he saw that he decided to make his exploration into a long-term project - the book Delhi - Adventures in a Mega City.
He followed a spiral he drew on a map and walked the route it dictated, and as he did his relationship with the city changed in a way he never imagined. Watch Sam talk about his book on NDTV.
Most of us don’t think of the workplace as a great place for a workout. Why seek out the stairs when the elevator's just there?
But some designers are trying to put more physical grunt into the daily grind.
More: view an audio slideshow from The New York Times - A New Tower for The Times.
Video - Design of The Times
Photographer Jessica Hilltout is not a great fan of football.
But when she travelled around southern and western Africa, she realised the massive impact it has on people’s lives.
Every village and town has at least one football pitch and it’s led to some ball design ingenuity. View photos.
More about the AMEN project.
Skateboarding power - listen in new player
He meets up with his mates on the outskirts of the Kenyan capital Nairobi and they make their way into the centre.
It’s fun, cheap and very clean – but there are a few obstacles to cross along the way. View photos.
Where bikes go when they reach the end of the road - listen in new player
But strict rules mean they can only be parked in certain places, and the council regularly removes bikes that are badly parked.
It's the city’s so-called ‘cycle graveyard’ where these abandoned bikes are stored in their thousands. View photos.
Take a video tour of the 10,000 bikes stored at Amsterdam's Bike Graveyard on our YouTube channel.
Not all of the bikes at Amsterdam’s bike depot end up as scrap metal.
One enterprising man has come up with a plan to recycle them.
Marijke meets Vitor Peixoto in his Amsterdam workshop and he tells her how he gives abandoned two-wheelers a new lease of life. View photos.
Who pinched my ride? - listen in new player
Writer Patrick Symmes is a keen cyclist. So when his bike was stolen from one of New York’s most expensive blocks he set out on a mission to find the culprit.
More - Outside: Who Pinched My Ride?
The Beat of India - listen in new player
We're looking for input from listeners for our Beat of India promotion on Facebook. Can you represent India with an audio or video upload? Music, dance, spoken word - whatever you do best, we want to see your originality and talent.