Smell

How does our sense of smell work? Smell psychologist Professor Rachel Herz knows. Plus how smell's being used to sell us stuff and why Christmas trees don't smell like they used to!

Dirty laundry

The Dhobi Ghat in Mumbai in India's a world famous outdoor laundry that handles three-quarters of a million items every day. Meena Kadri reports.

iPlot 11: More Planting

The salad and rocket's going off but when will we have a bit more variety on the menu? Plus Colin Walker supervises more planting - this week, beans, tomatoes, cucumbers, lettuce and basil.

Roller derby

Sonia Yee gets her skates on and meets some of the lasses in the Smash Malice and Brutal Pageant teams in Wellington's Richter City Roller Derby League.

Odourless longdrops

American inventor Don Sifers reckons he's solved the problem of stinky longdrop toilets. His 'latrine deodorizer' mangles methane molecules!