Volcanic gases escape from the magma . They percolate through the earth crust and into the atmosphere. Professional geologist, Charles Watson, investigates the risks at Horseshoe Lake close to Mammoth's main resort. There is a quiet, silent killer th

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国家地理2007年

国家地理:Green: Bathroom 　盥洗室节水计划

Hi, I am Paddy Kim. Whether you're getting ready to take on the morning, or just soaking in the shower at the end of a long day, the bathroom can be a retreat from the world, but it's also where over 60 percent of the water used indoors gets consumed

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国家地理2007年

国家地理:The Silent Stalker 安静的捕杀者

Under the influence of rabies, even docile animals often become dangerously aggressive and bite without provocation. Since the virus often concentrates in the saliva of the infected animal, a single bite can pass it on directly into the blood of the

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国家地理2007年

国家地理:Predators behind bars 监狱生死门: 牢笼恶兽

Albert has been a Crip since age 12. He is one of the first generations of the Los Angeles based Gang, a group known as the Original Baby Gangsters. His seniority puts him near the top of the Crips' national hierarchy. Here in Lebanon, he runs a crim

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国家地理2007年

国家地理:Blue Cows 　印度蓝牛

Dusk in rural India, farmhands sweep the land trying to drive away an animal that is threatening their livelihood. It's called nilgai or blue cow. In Rajasthan, nilgai roam in the hundreds, consuming anything and everything in their path, especially

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国家地理2007年

国家地理:Wings Over The Gulf 波湾战机 - 4

Hundreds of coalition airplanes were in the sky at any one time. Airborne warning and control system airplanes better known as AWACS kept air traffic straight. Largely thanks to AWACS there were no air-to-air friendly fire incidents during the Gulf W

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国家地理2007年

国家地理:Acorn Woodpecker 橡树啄木鸟

Tragedy has produced opportunity among the acorn woodpeckers here in California's Carmel Valley. The second of two breeding females in this particular communal group has been killed, probably by the birds of prey that kill one in five of the acorn wo

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国家地理2007年

国家地理:Sea Otters in Danger 拯救海獭

For several years something mysterious has been plaguing sea otter populations off the coast of California. The animal may have seizure s, it may shake, it may act like it's weak, uh, it may not seem like it's very aware of its surroundings, and it m

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国家地理2007年

国家地理:CSI: Crime Scene Cleaners CSI: 现场清理工

After the call to 911, once the cops and the coroner have gone, things must be put back in order, even when things will never ever be the same. It's gruesome work, but someone's got to do it. When a life ends in the worst possible way in the vicinity

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国家地理2007年

国家地理:Wings Over The Gulf 波湾战机 - 3

(There's also a piece of safety wire that, em, showed up on the X-ray. So we have to...) In fact just the opposite proved true, the number of air planes ready to fly at any given time actually increased during the war. F-15s went from an 85 percent p

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国家地理2007年

国家地理:Bite Force 咬合力

You get me a bigger one? We got one more guy to try. Alright. And he is, he is a locked animal, so let's see what we can do. Peggy takes me to the biggest most aggressive wolf here. He is over a hundred pounds. So that is a big male. This wolf lost i

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国家地理2007年

国家地理:Wings Over The Gulf 波湾战机 - 1

January 1991, an F-15 pilot on combat-air patrol sweeps the skies of Iraq. Sheridan, I'm Captain Medrimans, Captain in the 27th fighter squadron, flying in F-15 over Iraq. Today's been a mixed sweep, we started from the central, swept up for Bagdad,

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国家地理2007年

国家地理:Family Feuds: Impala Turf Wars 领土之战

A forest of umbrella thorn acacia trees in northern Tanzania provides shelter and sustenance for a wealth of animals. In this crowded paradise, property is hotly contested at all levels. Male impala , eager to challenge for a territory, build up stre

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国家地理2007年

国家地理:Man Stops Bear Attack 丛林奇遇

Jacqueline is at the table as Mark slips behind the tent to change his clothes. Suddenly a dark shape appears from behind the brush, heading towards Jacqueline--a black bear. Just as Mark shouts a warning, Jac, bear, the attacker strikes. Blink of an

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国家地理2007年

国家地理:Green: Living room 客厅节电计划

Hi, I'm Paddy Kim. From home theaters to plush sofas, hands down the family room is the coolest place to relax. But what makes this area such an amazing retreat for entertainment could also be adding dollars to your power bill and be affecting your h

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国家地理2007年

国家地理:Wings Over The Gulf 波湾战机 - 5

Threat posed by Iraq's Scud ballistic missiles. Militarily, Scuds were insignificant. But politically, Scud attacks on Israel and Saudi Arabia could have torn the coalition apart. The political importance of hunting down the Scuds was so great that t

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国家地理2007年

国家地理:Child Marriage 印度童婚

Wedding season in North India is a popular time to break the law. Child marriage is a union outlawed by the state and it's about to seal the fates of four youngsters. The Panjiya family plans to marry off two daughters. Thirteen-year-old Bendu and he

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国家地理2007年

国家地理:Picky Frog Mom 挑剔的青蛙妈妈

Here in the South American rainforest, you're watching what should be a joyous event, the laying of hundreds of eggs by a mother frog. In truth, only a very few of these eggs will blossom into full frogdom. Drought will take a toll, and predators wil

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国家地理2007年

国家地理:Wings Over The Gulf 波湾战机 - 7

The F-117 is a product of Lockheed's Advanced Development Projects group, which for decades has designed the most top-secret planes in the air force inventory, including the SR-71 Blackbird. In many ways, the Blackbird was the first stealth aircraft,

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国家地理2007年

国家地理:Knife Dancing 韩国巫堂舞

In South Korea, a land where Buddhism and Christianity reign, many still turn to the old folk beliefs of Shamanism, believe in a world inhabited by spirits. But to become a Korean Shaman, a believer must pass an initiation, called the naerim kut, a r

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国家地理2007年