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d라이브러리
"earth"(으)로 총 218건 검색되었습니다.
- 타이탄의 대기과학동아 1992년 02호
- Titan's atmosphere so dense.This is interesting because among the known bodies in the solar system, only Titan and Earth have atmospheres that are largely nitrogen. The giant planets have atmos ...
- 우주수프과학동아 1992년 01호
- expanded as a term to include many other things than a good minestrone. For instance, it is possible that when the Earth was young and there was no life upon it, the action of ultraviolet rays ...
- 브라질 원주민 야노마미족 옛집 되찾아과학동아 1992년 01호
- 군부 못지않은 압력을 받았다. 즉 내년에 리오데자네이로에서 열리는 지구회의(Earth Comission)에서 열대우림과 야노마미족을 보호하지않은 자신들의 처사가 맹렬히 규탄될 것임에 틀림없었기 때문이다. 실제로 전 유엔사무총장인 케야르는 직접 대통령에게 전화를 걸어 이 문제에 대한 자신의 관심을 ... ...
- 왜 소행성들을 관찰하는가?과학동아 1992년 01호
- than Mars. It is the latter group that is more interesting because these close asteroids can sometimes skim past the Earth at not very great distances(astronomically speaking).It is difficult t ...
- 시라노 드 베르주락과학동아 1991년 12호
- to the Moon. (This is a vision of the balloon, but this, too, would work only if air filled the entire space between Earth and Moon.)6. You could devise a machine like a large steel grasshopper ...
- 대규모 탐색 작업과학동아 1991년 11호
- might conceivably learn something from them and their messages.Much more important though, in my opinion, is this:The earth is on the edge of self-destruction through over-population, through p ...
- 식어가는 온천과학동아 1991년 10호
- 불확실한 것으로 만들고 말았다.COOLING DOWNOne sure way of getting energy is extracting it from the Earth itself. The Earth's hot springs provide a natural energy source - and it is only necessary, th ...
- 천랑성의 색깔과학동아 1991년 10호
- deciding that they were run by the stars, the Chinese invented changes in the heavens and then decided that things on Earth were happening in accordance with that.However, there are Chinese boo ...
- 더 밝은 물체과학동아 1991년 09호
- actually decide that it is important whether galaxies formed quickly or slowly, since that would mean that the sun and Earth would either have formed or not, as the case might be. If the galaxi ...
- 화산과학동아 1991년 09호
- a century ago, Darwin's second son suggested this Ring of Fire marked the place where the Moon was torn out of the Earth billions of years ago. But, though this was a dramatic suggestion, it wa ...
