Flour power

If a recipe needs self-raising flour can you just add standard flour with baking powder added instead? We look at flours with Julie Clark of Floriditas.

Hearing questions

We answer your questions about what to do with old hearing aids, hearing aid batteries and tinnitus with Janet Houghton, the President of the NZ Audiological Society, and Karen Allen who's an audiologist with Bay Audiology.

Mouthwatering food?

The science of saliva. Can food really be mouthwatering? Well, not so much, according to new research done by a team including Dr Guy Carpenter of King's College London's Dental Institute.

Moby Duck

It's the true story of 28,800 bathtoys lost at sea nearly 20 years ago and of the beachcombers, oceanographers, environmentalists and fools (and author Donovan Hohn includes himself in that category), who went in search of them.

Home brewing appliance

If James Bond drank homebrew beer and not martinis he'd probably fancy a domestic brewing appliance. Ian Williams of Williams Warn has a hi-tech model costing about $6,000.

Medical gadgets

Aaron Rowe of Wired has been to the TEDMED conference to see the latest medical devices, many of them designed with the home consumer in mind.