Quest +1 Thursday

How do they make an almost invisible hearing aid that connects wirelessly to your phone? And, how do they build the carriages for London's new underground railway?

A look at the remote-controlled underwater robots that do the jobs too dangerous for human divers. Plus, the world's most cuddly teddy bears

How platinum cleans exhaust fumes, and the technology that enabled the construction of a space station 360km above Earth

The requirements that must be met to transform a family car into a rally car. Plus, the manufacture of titanium, the metal that the modern aerospace industry relies on

Mike Brewer finds a Humvee to work on, and he and Edd China create a four-wheel-drive camping vehicle capable of venturing to places no camper has been before

Mike Brewer and Edd China try to make a profit on their first electric project as they restore a 1985 Maserati Bi-Turbo that was converted to electric in the early 1990s

The lads head to Birmingham, where they fall out over a bench that Henry thinks has value

The materials and manufacturing processes used in whips, automatic pizza-makers, incense cones and model jet engines

The production methods used for beet sugar, film used in instant cameras, and electric roadsters