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Richard and Jonny delve into the world of rubber to test tyres.

In a bid to find out all there is to know about glue, Richard and Jonny recreate the classic ‘flying man’ wallpaper paste TV ad by gluing Jonny to a board and dangling him from a crane above a pool of water.

Richard and Jonny find out all there is to know about batteries - from standard batteries to those powered by seawater, fruit and even…urine.

Can high pitched singing really shatter glass? Our duo enlists the help of an opera singer before heading to a firing range to test the true resistance of bullet-proof glass.

Did you know that just 1km of three-lane motorway costs £13 million to build? But what are our roads made of and what makes them so strong?

Richard and Jonny head to the fair to investigate, before visiting a scrapyard to demonstrate the incredible weight-lifting capabilities of a magnet powered by just four torch batteries.

Richard and Jonny turn graffiti artists to test the properties of anti-graffiti paint. Then it’s off to the Humber Bridge for a spot of painting – little do they know it takes three years to paint the railings alone.

Steel shipping containers can also be turned into surprisingly spacious and appealing housing as Jonny discovers on a visit to London’s Docklands.

To demonstrate the remarkable force of water, Richard and Jonny enlist some firemen to push their car using water jet force alone before trying their hand at some barefoot waterskiing.

Our duo examine the pros and cons of plastic including Bakelite, celluloid and Kevlar used in anti-stab material.