d라이브러리
"planet"(으)로 총 76건 검색되었습니다.
- 쓰레기과학동아 l199209
- '쓰레기'(영어로 가베지)라는 단어는 베어낸 곡물의 묶음이라는 의미를 가진 오래된 프랑스어 단어인 '가브'에서 유래됐을지도 모른다. 어 ... th and 18th centuries.Someday archeologists visiting from ELSEWHERE may chortle with glee at all the artifacts to examin ...
- 단백질의 위력과학동아 l199206
- of possible amino acids, proteins here on Earth contain only 20 varieties. It's quite probable that steak from anothor planet would not agree with a Terran.For years, scientists believed that w ...
- 멀리있는 실상과학동아 l199205
- Early telescopes negated humanity's picture of a simple vault of heaven in which the field of stars, the wandering planets, the sun and moon all moved around the Earth, but the Mount Wilson tel ...
- 협동과학동아 l199205
- as a cooperative animal. But human beings ARE socially cooperative, very much part of a biologically cooperative planet Earth. When we aren't cooperative, the results are grim and easy to see. ...
- Genes In Action 활동하는 유전자과학동아 l199203
- it. We like to go to the ocean, the mountains, the desert Where we feel part of something larger than ourselves, a planet that will go on living after we've gone.Besides, would you be satisfied ...
- The Park Phenomenon 공원현상과학동아 l199203
- ear and peer at you from tree limbs within reach.Our primitive ancestors had no idea of the marvelous history of our planet, a history often beneath their feet and readable if you know how. In ...
- 대규모 탐색 작업과학동아 l199111
- answer intelligently.(Some people say we must not answer under any circumstances lest the aliens decide they like our planet and come here to "take over." Actually, the chance of that are just ...
- 화산과학동아 l199109
- Somewhere deep in the Earth, water is collecting and being converted into steam by the internal heat of the planet. The steam builds up, the pressure increases, and eventually, the plug blows ...
- 명왕성 Pluto과학동아 l199108
- 아흡번째 행성의 위치를 계산하고 본격적인 탐사작업을 벌였다. 그는 이 행성을 '행성 X'(Planet X)로 명명 했다. 그러나 그가 탐색한 하늘의 방향에는 별이 빽빽이 들어서 있는 은하수가 있었으므로 흐리고 작은 행성을 가려내기란 이만저만 어려운 일이 아니었다. 결국 로웰은 발견에 실패하고 일생을 ... ...
- 찾기 힘든 쿼크를 찾아서과학동아 l199107
- Earth, but it contains as much mass in it as the sun. All that star's mass squeezed into the space taken up by a small planet-you can imagine how dense that matter must be.Yet that is not the u ...
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