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NOVA

自然 · 历史
S44 E21 Ghosts of Stonehenge
本集简介

Stonehenge is the grandest and most enigmatic of Europe's prehistoric monuments, and it has inspired countless theories to explain who built it and why. Was it an ancient cathedral or burial place or even a Stone Age observatory or computer? Over the last decade, fresh answers have come from an ambitious program of research, including the first scientific study of human remains—thousands of fragments of cremated men, women, and children—buried at the site 5,000 years ago. In this Stone Age detective story, archaeologists analyze the bones and piece together tantalizing details of the elite families who presided over Stonehenge. Remnants of huge feasts that fed the laborers at the site have come to light, including evidence that they traveled from the far corners of the British Isles to raise the stones and celebrate the winter solstice. Yet Stonehenge's place as a centerpiece of ancient culture was not to last. Join NOVA as we reveal intimate details of the Stonehenge people and why their power began to fade soon after they raised the mighty stones.

下一集
2017/10/18 S44 E22 8.3
Secrets of the Forbidden City

Discover the ingenious engineering of Beijing's Forbidden City, the power center of imperial China for nearly 500 years. Discover how the architectural design of this vast complex of palaces and temples enabled it to survive centuries of earthquake shocks. The Forbidden City is the world's biggest and most extravagant palace complex ever built. For five centuries, it was the power center of imperial China and survived wars, revolution, fires, and earthquakes. How did the Ming Emperor's workforce construct its sprawling array of nearly 1,000 buildings and dozens of temples in a little over a decade? How were stupendous 250-ton marble blocks moved across many miles to reach the site? And how did fantastically intricate woodwork, all fastened without nails or glue, enable the palaces to survive hundreds of earthquakes, including recent ones that obliterated nearby modern structures? To find answers, NOVA joins a team of master craftsmen who build a scale model of a typical palace in a seismic lab, then subject it to simulated earthquakes to shake out the secrets of how the Forbidden City has withstood centuries of violent tremors. The Forbidden City is the world's biggest and most extravagant palace complex ever built. For five centuries, it was the power center of imperial China and survived wars, revolution, fires, and earthquakes. How did the Ming Emperor's workforce construct its sprawling array of nearly 1,000 buildings and dozens of temples in a little over a decade? How were stupendous 250-ton marble blocks moved across many miles to reach the site? And how did fantastically intricate woodwork, all fastened without nails or glue, enable the palaces to survive hundreds of earthquakes, including recent ones that obliterated nearby modern structures? To find answers, NOVA joins a team of master craftsmen who build a scale model of a typical palace in a seismic lab, then subject it to simulated earthquakes to shake out the secrets of how the Forbidden City has withstood centuries of violent tremors.