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- 작은 꼬인 빛 Tiny Twisty Light과학동아 l199004
- 천문학의 가장 큰 수수께끼의 하나는 잃어버린 질량의 신비다. 지난 1월 몇몇 천문학자들은 잃어버린 질량은 어느 정도 볼 수 있게 할 수도 있다고 안했다.잃 ... such is the scientific frustration over this "mystery of the missing mass" that there is bound to be ...
- 1990년대의 과학과학동아 l199003
- in the 1990s.Of course, the true interest in future developments of science lies in the "breakthroughs"-sudden discoveries that seem to come out of nowhere and that turn some branch of science ...
- 두 사람과학동아 l199003
- is that the latter was far more advanced technologically.In 1878, a Spanish archaeologist, Marcellino de Sautuola, discovered paintings on the ceiling of a cave. (Actually, his 12-year-old daug ...
- 공룡의 죽음-열쇠가 되는 아미노산과학동아 l198911
- on Earth's surface, but by non-life processes in a meteor or comet.Of course, there are some questions about this discovery. How is it that the amino acids were not destroyed by the heat of imp ...
- 바라는대로 되는 것만은 아니다과학동아 l198910
- the dramatic-but wishing didn't make it so.However, that isn't always the case with all dramatic and unbelievable discoveries. In 1938, the German physicist Otto Hahn, who had been bombarding u ...
- 녹색 식물의 탄생 How Green Plants Began?과학동아 l198909
- that before those first cells evolved there were smaller, more primitive cells that existed as the only forms of life over a period of perhaps 2 billion years, Such small primitive cells still ...
- 가장 약한 파(波)―중력파 The Weakest Wave과학동아 l198909
- cost about $25 million to produce.What's more, to do it properly, there should be four such instruments distributed over the whole world, so that all four would be affected almost simultaneousl ...
- 초기인류의 언어능력을 말해주는 뼈과학동아 l198908
- 말할수 있는 능력 즉 정보나 추상적인 생각을 전달하기 위해 복잡한 소리들을 매우 빠르고 명확하게 변화시키는 일은 인간 고유의 특장(特長)이다. 우리는 말 ... do.Lester and I have argued repeatedly over this question. I shall be sure to break the news of the hyo ...
- 지하생활과학동아 l198907
- business and community endeavors are concerned. This could be important in a freely mobile world. Air transportation over long distances, east and west, would no longer entail jet lag, If we le ...
- DNA분자를 처음 보다과학동아 l198906
- thin slices of material. But then, ways were found to produce a very thin, sharp beam of electrons and play that beam over the surface of an object. The beam "felt" its way, so to speak, across ...
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