d라이브러리
"size"(으)로 총 45건 검색되었습니다.
- 리드프레임 소재과학동아 l198908
- 강도 및 연신율을 일거에 증가시킬 수 있는 유일한 방법이 바로 결정립 미세화(grain size refinement)이기 때문이다. 이외의 다른 방법들은 모두 강도는 증가시킬 수 있으나 연신율이 떨어지는 단점이 있다. 그 결과 성형성이 불량해지고, 반복되는 응력이나 변형에 의하여 쉽게 파괴된다.결정립을 ... ...
- 초기인류의 언어능력을 말해주는 뼈과학동아 l198908
- Carmel in Israel, they found the remains of Neanderthal men, including a hyoid bone just about exactly the shape and size of the ones “modern man” possesses. The age of the bone is estimated a ...
- 귀소하는 거북과학동아 l198907
- groups, but they were far smaller than would be expected of a multi-million-year separation. The difference was of a size that suggested a separation of only 40,000 years rather than 40 million ...
- DNA분자를 처음 보다과학동아 l198906
- produced by electrons. These electron-waves were much shorter than ordinary light-waves. They were, in fact, about the size of x-ray waves. But where x-ray waves would be extremely difficult to ...
- 유전자 연구계획과학동아 l198905
- 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 ...
- 예수의 수의과학동아 l198905
- use to historians and archeologists.What was necessary was to take a small bit of the linen of the shroud, about the size of a postage stamp, clean it and burn it. Carbon dioxide (made up of ca ...
- 인류최초의 발견─불의 사용과학동아 l198903
- 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 l198812
- 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 l198811
- 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 l198808
- 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 ...
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