[00:10.03]Why does Tazieff risk his life like this? [00:15.75]Haroun Tazieff, the Polish scientist, has spent his lifetime studying active volcanoes and deep caves in all parts of the world. [00:27.85]In 1948, he went to Lake Kivu in the Congo to observe a new volcano which he later named Kituro. [00:39.75]Tazieff was able to set up his camp very close to the volcano while it was erupting violently. [00:49.28]Though he managed to take a number of brilliant photographs, he could not stay near the volcano for very long. [00:58.83]He noticed that a river of liquid rock was coming towards him. [01:03.93]It threatened to surround him completely, but Tazieff managed to escape just in time. [01:12.79]He waited until the volcano became quiet and he was able to return two days later. [01:20.47]This time, he managed to climb into the mouth of Kituro so that he could take photographs and measure temperatures. [01:30.92]Tazieff has often risked his life in this way. [01:35.69]He has been able to tell us more about active volcanoes than any man alive. 波兰科学家哈罗恩.塔捷耶夫花了毕生的精力来研究世界各地的活火山和深洞。1948年他去了刚果的基伍湖，对一座后来被他命名为基图罗的新火山进行观察。当火山正在猛烈地喷发时，塔捷耶夫有办法把帐篷搭在离它非常近的地方。尽管他设法拍了一些十分精彩的照片，但他却不能在火山附近停留太长的时间。他发现有一股岩浆正向他流过来，眼看就要将他团团围住，但塔捷耶夫还是设法及时逃离了。他等到火山平静下来，两天以后又返回去。这次他设法爬进了基图罗火山口，以便能拍摄照片和测试温度。塔捷耶夫经常冒这样的生命危险。他能告诉我们的有关活火山的情况比任何在世的人都要多。