Can You Hear A Hum? | Earth Science

Since the 1970s, many people in cities across the globe have started hearing a strange hum. Join Linda Geddes in her hunt for an explanation as she interviews residents of Bristol in the UK who can hear a hum but have no idea where it's coming from. Subscribe: http://bit.ly/SubscribeToEarthLab

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This video was orginally made for BBC Future, you can see more from them here http://www.bbc.com/future/story/20160...

Credits
Journalist - Linda Geddes
Video, Graphics & Edit - Adam Proctor
Thanks to - Jake Cole, James Dunne, Tim Husband, Glen MacPherson, Rosemarie Mann, Andy Moorhouse.
Images - 'Somatosound' - Wellcome Images. 'Speaker' Donald Tong

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