PBS NOVA - Treasures of the Earth: Metals (2016)HDTV | 1280x720 | .MKV/AVC @ 2519 Kbps | 52mn 51s | 1.09 GiB
Audio: English AC3 384 kbps, 2 channels | Subs: English
Genre: Documentary The enduring luster of gold, the conductivity of copper, the strength of stee the special properties of metals have reshaped societies and defined eras; they have such an important role in human history that entire ages have been named after them. But what gives metals their astounding characteristics? From the perfect ring of a bronze bell to the awe-striking steel construction of Beijing’s “Bird’s Nest” stadium, how have humans perfected metalworking? And how have metals enabled our modern hi-tech world?