

How The Earth Was Made
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第 季第 2 集1 - Grand Canyon
2009年11月23日44 分鐘Almost 200 miles long and over a mile deep, this deep scar in the American Southwest is easily visible from space.免費試用 HISTORY Vault 或購買第 季第 2 集2 - Vesuvius
2009年11月30日44 分鐘Mt Vesuvius is the world's most dangerous volcano, and it threatens three million people. It was responsible for the most famous natural disaster of ancient history, the eruption that destroyed the Roman city of Pompeii.免費試用 HISTORY Vault 或購買第 季第 2 集3 - Birth of the Earth
2009年12月8日44 分鐘Four and a half billion years ago the Earth formed from dust in space to become a molten ball of rock orbiting the Sun.可供購買第 季第 2 集4 - Sahara
2009年12月14日45 分鐘Africa's Sahara is the largest desert in the world and the hottest place on the planet. Explore recent geological discoveries that reveal this searing wasteland's hidden past.免費試用 HISTORY Vault 或購買第 季第 2 集5 - The Rockies
2009年12月14日44 分鐘From Alaska to New Mexico, the Rockies are one of the great mountain belts of the world--caused by tectonic forces of the Pacific Plate pushing against the North American continent.免費試用 HISTORY Vault 或購買第 季第 2 集6 - Yosemite
2009年12月21日44 分鐘The Sierra Nevada, North America's highest mountain range, contains one of the most awe-inspiring geological features on the planet: Yosemite Valley. How was this extraordinary site created?免費試用 HISTORY Vault 或購買第 季第 2 集7 - Ring of Fire
2010年1月18日44 分鐘The single longest linear feature on Earth, the "Ring of Fire" is a 25,000-mile long string of active volcanoes stretching almost the entire length of the Pacific Ocean—one of the most awesome sights on Earth.免費試用 HISTORY Vault 或購買第 季第 2 集8 - Everest
2010年1月18日44 分鐘Mount Everest is the tallest and biggest mountain on earth, as far removed from sea level as it's possible to be, and yet its sedimentary layers contain fossils that were once creatures that lived on the ocean seabed.免費試用 HISTORY Vault 或購買第 季第 2 集9 - Death Valley
2010年1月25日44 分鐘It is not only a place of natural splendor but a geologic treasure trove as well. However, Death Valley is being pulled apart and the floor is collapsing -- and lower than sea level.免費試用 HISTORY Vault 或購買第 季第 2 集10 - Mt. St. Helens
2010年2月1日45 分鐘The 1980 eruption of Mt. St. Helens shocked America. More than 30 years later, scientists fear the acidic volcano may soon blow, unleashing its deadly gasses and magma again.免費試用 HISTORY Vault 或購買第 季第 2 集11 - Earth's Deadliest Eruption
2010年2月8日44 分鐘When greenhouse gases escaped from depressurized lava on the Earth's surface 250 million years ago, the massive global warming that ensued wiped out 95% of the planet's species...and paved the way for dinosaurs.免費試用 HISTORY Vault 或購買第 季第 2 集12 - America's Ice Age
2010年2月15日44 分鐘Why do we have ice ages and when is the next one due? Chart the progress of different ice ages through the history of our planet, from Snowball Earth hundreds of millions of years ago to the recent ice ages.免費試用 HISTORY Vault 或購買第 季第 2 集13 - America's Gold
2010年3月1日45 分鐘Gold dates from the time of the supernova explosion that gave birth to the building blocks of our solar system, and over the aeons geologic processes have concentrated it into various nooks and crannies around the globe.免費試用 HISTORY Vault 或購買