The National

The National (1952)

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Size 292.718 MB   22 seeders     Added 2013-02-15 06:15:58

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I Didn't Know That

Science Documentary hosted by Vicki Butler Henderson, published by National Geographic in 2009 - English narration


I Didn't Know That
Industrial scientists Richard Ambrose and Jonny Phillips find extraordinary facts behind ordinary everyday objects. I Didn't Know That, an action-packed series exposes little-known facts about ordinary items we take for granted. From airbags to teabags, toothpaste to tea, and condoms to crash helmets, each episode is a mind-blowing cavalcade of crazy demonstrations and rarely-heard info about everyday stuff.
Follow presenters Richard Ambrose and Jonny Phillips - two bona fide industrial scientists with an insatiable thirst for knowledge - on their quest to investigate how things are made, what's inside them, how they are tested and how they work.
Are you an infomaniac?

6)  Magnets 
Did you know that brakes on some vertical-drop fairground rides operate purely through electromagnetic induction? Richard and Jonny head to the fair to investigate, before visiting a scrapyard to demonstrate the incredible weight-lifting capabilities of a magnet powered by just four torch batteries. The guys then check out the magnetic suspension on a Ferrari and look at the future use of magnets in engine-free high speed, floating trains. But that's not all, Richard finds out all there is to know about diamonds while Jonny tackles a gearbox with his angle grinder. Finally, we visit a chip manufacturer famous for creating the Cheese and Onion flavoured chip.


Technical Specs

 * Video Codec: x264 CABAC High@L3.1
 * Video Bitrate: 1513 Kbps
 * Video Aspect Ratio: 1.778 (16:9)
 * Video Resolution: 832 x 468
 * Audio Codec: AC3
 * Audio Bitrate: 128 Kbps AVC 48KHz
 * Audio Channels: 2
 * Run-Time: 25mins
 * Framerate: 25fps
 * Number of Parts: 10
 * Part Size: 277 MB
 * Container: mp4
 * Encoded by: Harry65
 * Source: DVD


1)  Further Information 292.718 MB
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