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I Didn't Know That

Season 1 2007

  • 2007-10-04T23:00:00Z on National Geographic
  • 30m
  • 5h (10 episodes)
  • United Kingdom
  • English
  • Documentary
Industrial scientists Richard Ambrose and Jonny Phillips find extraordinary facts behind ordinary everyday objects.

10 episodes

Series Premiere

2007-10-04T23:00:00Z

1x01 Tyres

Series Premiere

1x01 Tyres

  • 2007-10-04T23:00:00Z30m

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

2007-10-04T23:00:00Z

1x02 Glue

1x02 Glue

  • 2007-10-04T23:00:00Z30m

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.

2007-10-11T23:00:00Z

1x03 Batteries

1x03 Batteries

  • 2007-10-11T23:00:00Z30m

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

2007-10-11T23:00:00Z

1x04 Glass

1x04 Glass

  • 2007-10-11T23:00:00Z30m

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.

2007-10-18T23:00:00Z

1x05 Roads

1x05 Roads

  • 2007-10-18T23:00:00Z30m

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?

2007-10-18T23:00:00Z

1x06 Magnets

1x06 Magnets

  • 2007-10-18T23:00:00Z30m

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.

2007-10-25T23:00:00Z

1x07 Paint

1x07 Paint

  • 2007-10-25T23:00:00Z30m

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.

2007-10-25T23:00:00Z

1x08 Steel

1x08 Steel

  • 2007-10-25T23:00:00Z30m

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

2007-11-02T00:00:00Z

1x09 Water

1x09 Water

  • 2007-11-02T00:00:00Z30m

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.

Season Finale

2007-11-02T00:00:00Z

1x10 Plastic

Season Finale

1x10 Plastic

  • 2007-11-02T00:00:00Z30m

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

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