纪录片部落--纪录片《[BBC纪录片]地震风暴EarthquakeStorms-1080P高清迅雷网盘下载》高清百度云1080p下载
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:地震风暴Earthquake Storms-1080P高清迅雷网盘下载
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由伯纳德·希尔(Bernard Hill)主持并由英国广播公司(BBC)出版的科学纪录片,作为2003年英国广播公司地平线系列的一部分播出-英语旁白Science Documentary hosted by Bernard Hill and published by BBC broadcasted as part of BBC Horizon series in 2003 - English narration
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地震是地球上最毁灭性的自然灾害之一。在过去的一百年里,他们夺走了超过一百万人的生命。地震之所以具有破坏性,主要是因为其不可预测的性质。无法准确地说出何时会发生地震,但是一种新的理论可以通过提前为地震做准备来帮助挽救生命。“我们知道伊兹密特很危险”地球物理研究所的杰弗里·金教授由大型“构造”板块组成。这些板处于缓慢但恒定的运动中。当两个板相互推动时,摩擦会产生大量能量。因此,地震最常发生在两个板块相遇的构造断裂线上。但是,这些断层线长达数千公里。准确预测地震发生的地点几乎是不可能的。压力线1992年,罗斯·斯坦因(Ross Stein)博士正在监视加利福尼亚州一个名为Landers的小镇的大地震。三个小时后,大熊熊在67公里外发生了地震。斯坦因认为这不仅仅是一场余震,而是他将兰德斯发生的那场大地震引发了大熊市的地震理论化。斯坦因认为,地震发生时,沿断层累积的应力部分会沿断层线转移。正是这种能量传递导致其他地震在原始地震发生后的数小时,数天或数月发生。斯坦因的团队开始寻找Landers和Big Bear地震之间的联系。他们已经在研究可以帮助他们研究地震之间关系的计算机模型。在Landers / Big Bear地震期间收集的数据使他们能够创建一个模型,该模型可以预测Landers的压力将转移到哪里。当他们查看结果时,计算结果确实表明,来自Landers的应力会沿着断层转移到Big Bear。然后,他们绘制了所有随后的“余震”图,发现几乎所有发生在被称为“红色区域”的高风险区域内。但是,这并不能证明地震风暴的理论。为了做到这一点,地震必须在原始地震发生数月甚至数年后才触发。这一新理论吸引了来自世界各地的科学家,并且在世界的某个地方,从现有证据看来,地震风暴理论可能成立。震颤踪迹杰弗里·金教授对土耳其北部安那托利亚北部断层的周期性活动着迷。在该周期再次开始之前,该地区的地震从东到西以平静的时间结束。金使用了与用来显示Landers和Big Bear地震之间的联系的模型相同的模型。金所见的第一次地震是1939年在北部城市埃尔兹坎。使用该地震的可用数据,他发现西部的一个名为Tokat的小镇处于危险的红色区域。托卡特确实在1942年的地震中被击中。该模型似乎正在运行。1967年,同样在红色区域的Adapazari也遭到袭击。看起来一场地震产生的压力正在转移到西方。这些不可能是余震,因为它们相隔数年而不是数小时。Earthquakes are among the most devastating natural disasters on the planet. In the last hundred years they have claimed the lives of over one million people. Earthquakes are destructive mainly because of their unpredictable nature. It is impossible to say accurately when a quake will strike but a new theory could help save lives by preparing cities long in advance for an earthquake."We knew that Izmit was dangerous" Prof Geoffrey King, Institut de Physique du GlobeThe surface of the Earth is made up of large 'tectonic' plates. These plates are in slow but constant motion. When two plates push against each other friction generates a great deal of energy. For this reason earthquakes occur most frequently on tectonic fault lines, where two plates meet. However these fault lines run for thousands of kilometres; predicting exactly where a quake will occur is nearly impossible.Stress linesIn 1992, Dr Ross Stein was monitoring a large earthquake in a town in California called Landers. Three hours later, there was another quake 67km away at Great Bear. Stein believed that this was not simply an aftershock, instead he theorised the event at Landers had set off the earthquake at Big Bear. Stein believes that when an earthquake occurs the stress that has built up along the fault, is in part, transferred along the fault line. It is this energy transfer that causes other quakes to occur hours, days or months after the original.Stein's team began to look for connections between the quakes in Landers and Big Bear. They had already been working on a computer model that could help them study the relationship between earthquakes. The data collected during the Landers/Big Bear quake had enabled them to create a model that could predict where the stress from Landers would have been transferred. When they looked at the result the calculations did indeed show that the stress from Landers would have been transferred along the fault to Big Bear. They then plotted all of the subsequent 'aftershocks' and discovered that almost all occurred within a high-risk area they called a `red zone'. This did not prove the theory of earthquake storms though. In order to do that the quakes would have to be triggered months or even years after the original earthquake.Scientists from around the world were attracted by this new theory and there was one part of the world where it seemed from the available evidence that the earthquake storm theory might hold true.Tremor trailProf Geoffrey King was fascinated by the cyclic behaviour of the North Anatolian fault in northern Turkey. Earthquakes in the region moved from east to west with a period of quiet at the end before the cycle began again. King used the same model that had been used to show the connection between the quakes in Landers and Big Bear. The first earthquake King looked at was in the northern city of Erzican in 1939. Using the available data on that quake he found that a town to the west called Tokat was in the red, danger zone. Tokat was indeed struck by a quake in 1942. The model seemed to be working. In 1967 Adapazari, also in a red zone, was hit. It looked like stress generated in one earthquake was being transferred to the west. These could not be aftershocks as they were separated by years, not hours.As King continued to put data into the model he discovered that a city called Izmit seemed to be the next place that would be struck. With a population of 500,000 people King and other scientists knew they needed to make this discovery public knowledge."Buildings can be improved. Construction can be modified"Prof Geoffrey KingNewspapers, science journals and other publications all printed this remarkable news. Unfortunately there was not enough interest from the local community. In August 1999 King was tragically proved right when a massively energetic earthquake lasting just 45 seconds killed 25,000 people. It was a bittersweet feeling for King. On one hand he was proved right, on the other he knew that many people had lost their lives who could have been saved. King also knew that there was a high chance of more earthquakes. So using the data acquired from the Izmit quake he began to work out where the next most likely earthquake site would be.The answer would cause a great deal of concern. At the edge of the red zone lay the city of Istanbul, home to more than four million people. The city's high population density puts its inhabitants at maximum risk. There is good news though; if the warning from King's team is heeded then arrangements can be made to make Istanbul safer in the event of an earthquake, whenever it happens. For now though, only time will tell if King's prediction will prove correct.
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【技术参数】——
视频编码: Divx 5.21
比特率: 1876 kb/s
Video 分辨率: 688x512 (1.34:1)
Video 画面比例: 4:3
音频编码: MP3
音频比特率: 136 kb/s (68/ch) VBR 48000 Hz
分集时长: 48m 28s
体积: 700mb
Subtitles: English
发布人: jvt40【Technical Specs】——
Video Codec: Divx 5.21
Video Bitrate: 1876 kb/s
Video Resolution: 688x512 (1.34:1)
Video Aspect Ratio: 4:3
Audio Codec: MP3
Audio BitRate: 136 kb/s (68/ch) VBR 48000 Hz
RunTime: 48m 28s
Part Size: 700mb
Subtitles: English
Ripped by jvt40
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