d라이브러리
"today"(으)로 총 44건 검색되었습니다.
- 녹색 식물의 탄생 How Green Plants Began?과학동아 l198909
- chloroplasts were once bacterial cells that specialized in the use of sunlight for energy. Such organisms still exist today and are celled "cyanobacteria."In one respect, thought, cyanobacteri ...
- 지하생활과학동아 l198907
- dwellers beneath would see more greenery, under ecologically healthier conditions, than dwellers of surface cities do today.And remember, as one more point, that in an underground world of perp ...
- 유전자 연구계획과학동아 l198905
- That's a lot of information, but, then, a complete knowledge of the human body requires a lot of information.Even today, only about a thousandth of the nucleotides have been placed in order bu ...
- 최초의 언어과학동아 l198903
- manner in which languages changed with time were worked out by, among others, the Grimm brothers, who are better known today for the fairy tales they collected.There are other language families ...
- 최고(最古)의 날짐승과학동아 l198808
- the forelimbs and the tail but it is very doubtful that the archaeopteryx could fly in the modern sense. Flying birds today all have a keel on the breastbone to which all have flying muscles ar ...
- 알기 어려운 쿼크과학동아 l198804
- Greeks, thinkers have been trying to answer the question: What are the basic objects making up the universe?Scientists today are still trying to answer this but the last bit of information cont ...
- 가장 생명력이 강한 것과학동아 l198803
- driven to extinction various large forms of life, including mammoths and mastodons, and are endangering many others today, it would appear that despite our best efforts, we have never managed t ...
- 태양계의 종말은?과학동아 l198803
- the latest scenario I could find.Suppose we don't have a nuclear war. Suppose we solve all the problems that face us today. Suppose we learn how to improve the human body and mind, making ourse ...
- 옛 괴물들과학동아 l198802
- as much as 80 tons, 13 times as much as the largest elephant alive today. Or consider birds. The largest birds alive today are far too heavy to fly, but they can do well anyway. The ostr ...
- 시베리아에서 있은 폭발과학동아 l198801
- about an incident that took place in central Siberia 80years ago. They are still poking around in the area and, even today, are uncovering new evidence concerning it. On June 30, 1908, the skie ...
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