Summary Dallas looks at the details of thrill seeking, Jem concocts a contraption to thwart a sound weapon, Yan shows a group why one's voice changes after inhaling different gases, and Liz investigates the benefits of fear.
Directed : Unknown
Written : Unknown
Stars : Liz Bonnin Jem Stansfield Dallas Campbell Yan Wong
Genres : Family Documentary
Release date : Aug 23, 2009
Countries of origin : United Kingdom
Official sites : BBC
Language : English
Production companies : British Broadcasting Corporation (BBC) The Open University
Summary Dallas looks at the details of thrill seeking, Jem concocts a contraption to thwart a sound weapon, Yan shows a group why one's voice changes after inhaling different gases, and Liz investigates the benefits of fear.
Genres : Family Documentary
Release date : Aug 23, 2009
Countries of origin : United Kingdom
Official sites : BBC
Language : English
Production companies : British Broadcasting Corporation (BBC) The Open University
