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- The Park Phenomenon 공원현상과학동아 l199203
- Olmstead planted trees around the park's perimeter to screen out the buildings beyond. In some areas of the park, notably the hilly and forested "Ramble," it's hard to believe you are in a hug ...
- 이빨이 말해주는 것과학동아 l199202
- things as birth rates. It will also help in estimating the number of predators versus the number of prey.All this is not bad for information from an old, rocky tooth that may easily be a hundre ...
- 타이탄의 대기과학동아 l199202
- and formed the atmosphere.But that doesn't really answer the question. Where did the nitrogen come in the first place?Another suggestion : Saturn, like the other giant planets, has considerable ...
- 왜 소행성들을 관찰하는가?과학동아 l199201
- while it could happen tomorrow, it is much more likely that we are safe from some millions of years.Of course, we need not look upon asteroids simply as a vehicle for catastrophe.Since some do ...
- 우주수프과학동아 l199201
- and weak) and gravitational under a single set of equations, something physicists have been searching for years.For another, it may answer other questions as well.One of the most annoying quest ...
- 과학평론과학동아 l199112
- a particular bone. In reptiles, it passes between two bones. In young duckbills where the bones of the skull have not fused, the trigeminal nerve passes between bones. Maclntyre consider this m ...
- 시라노 드 베르주락과학동아 l199112
- image of an impossible hero. But Cyrano really lived. He was a real person who had a large nose(though undoubtedly not as big as pictured) and who fought and killed people.And yet most importan ...
- 여성 천문학자들과학동아 l199111
- comparison with the total distance.She studied the Cepheid variables in the Clouds. These are stars that pulsate. She noted in 1904 that the longer the period of light variation, the greater th ...
- 대규모 탐색 작업과학동아 l199111
- reach us and ours are not powerful enough to reach them.Second, they existIt is pleasant to know that we are possibly not living at the edge of destruction; that there are living beings ...
- 식어가는 온천과학동아 l199110
- the system can maintain its heat output without cooling off too fast or leaking excessively.Geothermal energy arises not from mere hot rock, but from magma-molten rock that lies 5 to 7 kilomete ...
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