Sound Waves: The Symphony of Physics - 纪录片1080P/720P/360P高清标清网盘迅雷下载
Sound Waves: The Symphony of Physics - 纪录片1080P/720P/360P高清标清网盘迅雷下载https://cdn.6867.top:6867/A1A/xzjlp/enwiki/202103/07/23/43v2oka1waf59.jpg
Sound Waves: The Symphony of Physics - 纪录片1080P/720P/360P高清标清网盘迅雷下载
Sound Waves: The Symphony of Physics,Alchemists of Sound,Documentary,Faster Than Sound,Into the Wind,Sonic Magic,Sonic Sea,What You Can't See,When Pop Went Epic,Exploring Quantum History: Series 1,2017
General Information：
Science Documentary hosted by Helen Czerski, published by BBC in 2017- English narration
Information
Sound Waves: The Symphony of Physics
Dr Helen Czerski investigates the extraordinary science behind the sounds we're familiar with and the sounds that we normally can't hear.
Making Sound
At the Palace of Westminster, Helen teams up with scientists from the University of Leicester to carry out state-of-the-art measurements using lasers to reveal how the most famous bell in the world - Big Ben - vibrates to create pressure waves in the air at particular frequencies. This is how Big Ben produces its distinct sound. It's the first time that these laser measurements have been done on Big Ben. At the summit of Stromboli, one of Europe's most active volcanoes, Helen and volcanologist Dr Jeffrey Johnson use a special microphone to record the extraordinary deep tone produced by the volcano as it explodes. Finally, at the University of Cambridge's Institute of Astronomy, Helen meets a scientist who has discovered evidence of sound waves in space, created by a giant black hole. These sounds are one million billion times lower than the limit of human hearing
Using Sound
Visiting a hidden location buried beneath the hills of Scotland, Helen experiences some of the most extreme acoustics in the world. Here she learns just how much information can be carried by sound. She discovers how sound has driven the evolution of truly incredible biological systems and complex relationships between creatures that exploit sound for hunting - and escaping from predators. Helen demonstrates how sound waves diffract (bend around objects) and in doing so help us sense danger and locate it. Helen explains how we are not limited to passively detecting sound waves; we can also use them to actively probe the world. From detecting submarines to uncovering the secrets of our planet,
Technical Specs
Video Codec: x264 CABAC High@L4.1
Video: Bitrate: CRF-21 (~1727 kb/s)
Video Aspect Ratio: 1280 x 720
Video Resolution: 1.778 (16:9)
Audio Codec: AAC LC
Audio: English
Audio Bitrate: 161 kb/s VBR 48 KHz
Audio Channels: Stereo 2
Run-Time: 59 mins
Framerate: 25 FPS
Number of Parts: 2
Container Mp4
Part Size: 797 MB
Source: HDTV
Encoded by: Harry65
Release Notes
Merged English Subtitles
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Sound Waves: The Symphony of Physics - 纪录片1080P/720P/360P高清标清网盘迅雷下载
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