Jem builds a laser; Yan recreates a demonstration to calculate the speed of light.
Subtitles: English
Directed by:Matt Ainsworth
Season 4
S04:E01 - Episode 1
Understanding the devastating Japanese earthquake.
S04:E02 - Episode 2
The science of IVF; following couples who undertake IVF treatment; going 360 degrees on a swing.
S04:E03 - Episode 3
Homemade gules to test stickiness; puzzle with a scientific optical illusion; supersonic car.
S04:E04 - Episode 4
A demo of calorific value by taking part in the Oxbridge Boat Race; testing MP's abilities to calculate risk.
S04:E05 - Episode 5
Jem builds a laser; Yan recreates a demonstration to calculate the speed of light.
S04:E06 - Episode 6
The science of genetic modification in Hawaii; shattering a glass; curing a dust allergy through eating worms.
S04:E07 - Episode 7
The science of "dad dancing"; Liz tracks her family tree through the use of DNA; Jem builds a singing road.
S04:E08 - Episode 8
The future of recycling; how GPS works and how it is changing the world; using science to crack a magic trick.
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