Gocta Falls, Peru

Imagine going for a walk in the bush and discovering the third tallest waterfall on the planet. Well this didn't happen hundreds of years ago, but in 2005 in Peru to a German economist. Journalist Joshua Foer reports.

The real life of mannequins

Glen Wilkin-Holland makes mannequins for a living at Purfex in Auckland.

Gocta Falls, Peru

Imagine going for a walk in the bush and discovering the third tallest waterfall on the planet. Well this didn't happen hundreds of years ago, but in 2005 in Peru to a German economist. Journalist Joshua Foer reports.

Pro facemasks

Jeremy Murray makes protective facemasks for injured pro sports people.

Food additives: humectants and anti-caking agents

We're shopping for more food additives with food scientist Matt Golding. This week, what are anti-caking agents and humectants and what are they doing in the stuff we eat?

Artificial sweeteners

Carolyn De La Pena has written 'Empty Pleasures'; it's a history of artifical sweeteners from aspartame to saccharin (a byproduct of the coal industry by the way!).