BBC - Sound Waves: The Symphony of Physics (2017)
HDTV | 1280 x 720 | .MP4/AVC @ 1724 Kbps | 2x~59mn | 1.49 GB
Audio: English AAC 161 Kbps, 2 channels | Subs: English
Genre: Documentary, Science, Nature
Dr Helen Czerski investigates the extraordinary science behind the sounds we're familiar with and the sounds that we normally can't hear.