d라이브러리
"size"(으)로 총 50건 검색되었습니다.
- 유전자 연구계획과학동아 l1989년 05호
- letters in the right order, that would represent a billion words, or, roughly, the equivalent of 360 books, each the size of a volume of the Encyclopaedia Britannica. That's a lot of informatio ...
- 인류최초의 발견─불의 사용과학동아 l1989년 03호
- hominid called Homo erectus, who looked more like us than any ape, but had a brain only a little more than half the size of ours.Nevertheless, he was brainy enough to discover how to maintain a ...
- 우주 오염과학동아 l1988년 12호
- that are too small to be tracked. According to some estimates, there are 60,000 pieces of debries about an inch in size. There may also be uncounted millions of flecks of paint.We may smile at ...
- 한쪽으로 늘어진 위성과학동아 l1988년 11호
- be spherical in shape, and Nereid is 400 miles across. Nereid, therefore, has to be a sphere and would seem the same size to us no matter how it turns.It may be, then, that the surface isn't un ...
- 최고(最古)의 날짐승과학동아 l1988년 08호
- is of an organism smaller than archaeopteryx. Whereas archaeopteryx was the size of a crow, the new fossil was the size of a robin.(The smaller an organism, the easier it is for it is fo ...
- 성단(星団)이라는 측정자과학동아 l1988년 05호
- have been detected in other nearby galaxies too. It may be that globular clusters can only reach a certain maximum size because if they were any bigger the outermost stars would not be held fir ...
- 감마선의 시사과학동아 l1988년 05호
- collapse so that its atomic nuclei come into contact, and it becomes a "neutron star." When that happens, a star the size of the sun collapses into a small sphere only eight miles across that s ...
- 태양계의 종말은?과학동아 l1988년 03호
- generated to keep the sun from collapsing. Gravity will then have its way at last, and then the sun will contract to a size smaller than that of the Earth. Its surface layers will heat up again ...
- 옛 괴물들과학동아 l1988년 02호
- is alive today. It is the blue whale. It can be up to 90 feet long and weigh up to 130 tons, twice that length and size of the largest dinosaur that ever lived. Nor is it likely that there were ...
- 책의 혁명과학동아 l1987년 12호
- backward between the pages, to find a particular page quickly, and so on. Such a device also exists and is roughly the size of a ordinary book. Such a scanner can be easily carried, along with ...
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