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가장 깊은 호수과학동아 l199107

to protect the plants and animals that belong to it. There are industries along its shores but, since 1971, the Soviet Union has kept those industries under strict control.Soviet scientists are ...

경제교류가 가져오는 것 Business Leads The Way과학동아 l199001

trade harms everyone. Most of the world is aware of the dangers of protectionism. Nations such as the Soviet Union and China, which are politically hostile to the West, are nevertheless eager f ...

우주여행의 방향은?과학동아 l198901

fears for the safety of the astronauts. It becomes marginally less dangerous if the United States and the Soviet Union pool their resources and expertise, making the Mars Project a global effor ...

우주 오염과학동아 l198812

than the explosion that killed a saven crew members.And the situation is growing worse. The United Sates, the Soviet Union and other nations are continuing to launch object into sapace. Explosi ...

다이아몬드 개량과학동아 l198809

enormous advances can be made in computer technology.More surprising still is the word coming out of the Soviet Union (which still leads the world in the technique) that new ways of making dia ...

시베리아에서 있은 폭발과학동아 l198801

on land, people would have died, perhaps in vast numbers. Second, suppose such an event happened now in the Soviet Union or in the United States. Such a blast might be taken to be an enemy nucl ...

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