2011年4月25日 星期一

Death Fog 死亡迷霧


2/2

By Michelle Adams

Two years before the Lake Nyos deaths, thirty-seven people died in a fog next to another lake in the area. An Icelandic scientist discovered a strange layer of CO2 at the bottom of that lake. Most lake water has CO2, but it gets pushed to the surface in safe quantities throughout the year. This lake’s water didn’t move around, though, and the gas built up. The Icelandic scientist believed that something disturbed the CO2 layer and caused a lot of it escape all at once. In high concentrations, CO2 is deadly.
 
Kling had found his answer. The burns on the people were actually frostbite from the very cold gas. In addition, a landslide had recently pushed rocks into the lake. Kling believes that caused CO2 to rise and flow out of Lake Nyos like a fog.
 
By looking at a mystery with a scientific eye, the real story can often be revealed. Through research, Kling was able to solve a mystery that seemed almost supernatural. As a result, the government put pipes into the lake suck out the CO2 gas. Other crater lakes in the area are now being watched to make sure the death fog never happens again.

disturb (v.) to interrupt what someone is doingconcentration (n.)a large number or amount of something in the same place landslide (n.)when rocks and soil slide down a mountain or hill mystery (n.)something strange or unknown that cannot be explained or understood reveal (v.)to give someone a piece of information that is surprising or that was previously secret suck (v.)Something which sucks a liquid or an object in a particular direction pulls it with great force

Reference:
Live互動英語雜誌 3月號


沒有留言:

張貼留言