d라이브러리
"planet"(으)로 총 91건 검색되었습니다.
- 먼지의 영향과학동아 l1993년 04호
- path of sunlight to the moon, but because Earth has an atmosphere, some sunlight bends through it, curving around the planet. The light waves that get through are mostly of long, red light, so ...
- 체온저하증과학동아 l1993년 01호
- 꺼내놓는 것이 바람직할 것이다. Winter-and the risk of hypothermia-is on its way to my part of the planet, but right now there's a splendid display of fall foliage in Central Park, where South Africa's Willi ...
- 낮과 밤의 리듬과학동아 l1993년 01호
- 밝고 어두움의 리듬을 잘 살피는 것이 좋을 것이다. Rhythmic alterations of day and night rule our planet and everything on it. Several recent news items-about night-work problems, medicine and even farming-all have ...
- 맨틀과 핵과학동아 l1992년 12호
- s an outer core of molten nickel and iron, six times wider than the solid inner core that floats in it like a tiny planet 5,000 kilometers beneath our feet. Canadian geophysicist Dr.Douglas Smy ...
- '파이어니어'와의 안녕과학동아 l1992년 12호
- similar to the blast which felled trees in Tunguska, Siberia, on June 30, 1908.Unlike Mars, Venus and Earth are both planets with good-sized atmospheres. On Earth, water wipes away the evidence ...
- 쓰레기과학동아 l1992년 09호
- '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 l1992년 06호
- 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 ...
- 협동과학동아 l1992년 05호
- 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. ...
- 멀리있는 실상과학동아 l1992년 05호
- 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 ...
- Genes In Action 활동하는 유전자과학동아 l1992년 03호
- 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 ...
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