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d라이브러리
"good"(으)로 총 84건 검색되었습니다.- 화산과학동아 199109
- Beautiful sunsets were a by product of this eruption.Less delightful was the fact the stratospheric dust cut off a good deal of the sunshine and produced unusually cold temperatures. This was ...
- 찾기 힘든 쿼크를 찾아서과학동아 199107
- they really exist?By inference. Beginning in 1808, scientists accepted the existence of atoms before they actually had good evidence of them in 1913.So many aspects of nuclear physics are expla ...
- 슈퍼 다이아몬드과학동아 199010
- we know for rubbing down and smoothing out uneven surfaces. (There are abrasives that are cheaper and almost as good, but they are only almost as good.) Then, too, though diamond does no ...
- 보이지 않았던 별과학동아 199009
- to this day (although there is a notation in an Italian manuscript that might refer to it).But if there was no good record of its sighting, how do we know that such a star was ever in the sky?F ...
- 상처를 찾아라과학동아 199008
- crater. Hildebrand and Boynton don't insist that this is the scar scientists are looking for, but they feel it is a good candidate.Two other scientists, Bruce Bohor of the U.S. Geological Surve ...
- 종족의 보존과학동아 199006
- but has now been driven nearly to extinction. The bird only breeds once in four years and only when the food supply is good, so it is hard to keep it going. Only 43 birds are left, 14 of them f ...
- 지구가 너무 덥고 추웠을 때 When The Earth Was Too Hot and Too Cold과학동아 199001
- far from the ocean does not have a chance to have its temperature moderated. It gets good and hot in the summer, and good and cold in the winter. Such regions experience a "continental c ...
- 초기인류의 언어능력을 말해주는 뼈과학동아 198908
- Science fiction writers often deal with prehistoric times and with Neanderthal man in particular. Back in 1939, a good friend of mine, Lester del Rey, wrote a very touching story titled “The D ...
- 귀소하는 거북과학동아 198907
- can't always tell you exactly what is true, but some-times it can tell you that something that is dramatic and sounds good may not be true. That Happened early in 189 in connection with, of all ...
- 지진 The Earth Trembles과학동아 198904
- What we need to do, then, is to learn how to make long-range predictions of earthquakes. Suppose we could tell, with good accuracy, that a certain city will be suffer a major earthquake in 55 y ...
