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"useful"(으)로 총 37건 검색되었습니다.- 최초의 언어과학동아 1989년 03호
- by Vitaly Schevoroshkia of the University of Michigan, who has been doing research on the subject.It would be a useful endeavor, too, for if you could work out how human language evolved, it is ...
- 인류최초의 발견─불의 사용과학동아 1989년 03호
- to appear in more recent layers. Once Fire came to be used, in other words, it continued to be used. It was too useful to be allowed to sink back into oblivion.Dwelling in those ancient caves w ...
- 다이아몬드 개량과학동아 1988년 09호
- sparkling, rare and expensive. Yet we seem to be on the threshold of making diamonds common, cheap and very, very useful.Diamond is pure carbon and carbon is one of the cheapest substances the ...
- 최고(最古)의 날짐승과학동아 1988년 08호
- a predator trying to make a meal of it.It might well turn out that this ability to jump longer and farther was so useful that any random change that improved the ability would increase the chan ...
- 나무 달력과학동아 1988년 01호
- in the Southwest have been dated accurately. Of course, long-lived trees are rare, but even short-lived trees can be useful if, for some reason, their dead wood did not rot too quickly. Oaks, f ...
- 책의 혁명과학동아 1987년 12호
- form. Other types of writing on hand surfaces(a sharp instrument on a waxed tablet, chalk on a piece of slate) may be useful, but don't have the permanence of books. Carvings on stone columns a ...
- 가장 중요한 화석과학동아 1987년 11호
- be useful.The answer evolutionists make is that even if they only helpled the bird glide, that in itself would be useful, and that the situation would slowly improve until full flight wa ...
