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17 May, 2012 Thu
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星球上最大的生物（從外太空唯一能看到的一個）- 大堡礁，是如何存活下來的？為什麼它如此的巨大？今集節目探險家Will Gadd請來在大堡礁工作的地質學家和海洋生物學家，講述是甚麼促使這個地方成為最大的珊瑚礁。大堡礁曾經復活了很多次，到底是否有一個更古老的珊瑚礁被埋在今天的大堡礁中？
Working with geologists and marine biologists, extreme adventurer Will Gadd gets up close and personal with the largest living thing on the planet – the Great Barrier Reef. The story of what makes this place the perfect location for the largest reef in the world takes Gadd far inland in search of clues to Australia's mysterious past. This is the hidden story of a world that has died and been resurrected many times, and it takes Gadd on an incredible voyage above and beneath the waves of Australia's eastern seaboard. It has long been known that the remains of a much older reef are buried beneath today's Great Barrier. But just how old is it? Scuba diving to depths of 190 feet, the team retrieves a rare piece of that ancient reef. This is a first – scientists can now date that forgotten ancestor - 12,000 years old. |
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World paragliding record holder and renowned extreme sportsman Will Gadd, along with geologists and base jumpers, descend into a Venezuelan jungle to trace the life history of the world's tallest waterfall, Angel Falls. It spills from the top of one of many shear-sided, flat-topped tepui, some of the most geologically distinctive formations in the world. As they search for a way to scale its walls, the scientists discover how the tepui were formed and glimpse the future of the falls. |
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明珠930紀錄片陣容進一步強化，今周開始逢星期二的《地球大無畏》旨在從科學及實地探索，介紹大自然令人驚歎的美景。一連六集的節目，中主持人Gadd不時身先士卒，透過鏡頭帶觀眾挑戰大自然。
首集去到大峽谷，美國大峽谷隱藏了消失的山脈、探險家及火山的足跡，所以大峽谷順行成為《地球大無畏》首周播出的主角。節目中，Gadd會攀爬至400英尺的高空，看看大峽谷如何在七千萬年前形成；他亦會親到峽谷底，發現美國原來是建基於密度高的黑色岩石之上，而Gadd最後天會飛越大峽谷，當然不是平日用飛機飛行，而是利用大峽谷的特殊溫度變化！
How did the Grand Canyon get so deep? What are the secrets revealed in its mile-high walls, and what makes a world-class white-water rapid? Will Gadd climbs a sheer 400-foot pinnacle to see what the birth of the Grand Canyon looked like 70 million years ago. He reveals the hidden worlds buried in the layers of rock in the canyon's walls. When he reaches the bottom, one mile down, he goes white-water kayaking down the canyon's interior to see exactly how those famous rapids are made. And just beneath the water line he reaches the bottom of the Grand Canyon. He discovers America's basement, a layer of dense black rock the United States is built on. This is the story of lost mountains, epic adventurers and gigantic volcanoes that have shaped one of the most iconic natural wonders in the world.
And in the biggest, most dangerous stunt of the series, Gadd flies across the Grand Canyon using just the power of the massive thermal lift generated by the intense temperatures formed deep within the canyon. |
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