d라이브러리
"year"(으)로 총 90건 검색되었습니다.
- 지진 The Earth Trembles과학동아 l198904
- we could tell, with good accuracy, that a certain city will be suffer a major earthquake in 55 years, give or take a year of so. That would give time to strengthen structures, to demolis ...
- 석유·천연가스 등 자원과 군사적필요에 의한 새로운 관심 북극과학동아 l198902
- 성공하였다.현재 북극의 곳곳에는 1957~58년 국제지구물리관측년(International Geophysical Year)을 전후하여 캐나다 소련 미국 등에 의해 설치된 3백여개의 관측소로 부터 각종 기상과학자료가 수집되고 있으며 알래스카 북부의 '프루도'만(Prudoe Bay), '뷰포트'해 등에서 석유 및 천연가스가 발견됨에 따라 ... ...
- 물이 많아지고 더워진다과학동아 l198902
- than 1988 even though the general trend is upward. If this happens, I imagine that people will forget again, until a year comes in the near future that is even worse than 1988.But what can we d ...
- 우주 오염과학동아 l198812
- to launch. And what about spacesuits and spaceships? They are not 100 percent safe either. It is possible that in 100 years, it simply woun't be safe to try a "space walk" in the neighborhood o ...
- 한쪽으로 늘어진 위성과학동아 l198811
- the latter, what is the dark substance, where did it come from, and why is it concentrated on only half the surface?A year from now, Voyager 2 will pass within 3 million miles of Nereid. This w ...
- 행성군(群)과학동아 l198811
- of planets, those planets were far enough away from the stars they were circling that they took longer than seven years to complete a revolution, Because an entire wobble was not observed, the ...
- 동요하는 지구과학동아 l198810
- Naturally, the more severe the earthquake, the larger the deviation, which is why the Chandler wobble is larger some years than others.But it doesn't take an earthquake to make the Earth wobbl ...
- 꿈이 현실로 되다과학동아 l198810
- whole Tinker-Toy system was suspect, and chemists did not relish having to look for a new kind of model.Kekule spent years on this problem. He arranged the carbon and hydrogen atoms in every co ...
- 최고(最古)의 날짐승과학동아 l198808
- of bony remains of another feathered creature in Spain, It is more recent than the archeopteryx by perhaps 25 million years, so there was plenty of time for it to develop additional birdlike fe ...
- 마지막 정리과학동아 l198807
- and the calculus.If he had worked full time and seriously, he would have made those dis coveries.In any case, in that year, 1637, Fermat was reading a book about relationships involving whole n ...
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