d라이브러리
"NOT"(으)로 총 234건 검색되었습니다.- 천랑성의 색깔과학동아 199110
- is considerbly larger and brighter than our sun and it can't support life, either. For one thing, it sould not remain on the "main sequence"(the majority of stars fall into the "main sequence" ...
- 더 밝은 물체과학동아 199109
- 몇주전 나는 지금까지 알려진 가장 밝은 물체를 이 지면을 통해 소개한 바 있다. 그런데 그 기록은 벌써 깨지고 말았다. 영국과 미국 천문학자들로 구성된 연구팀 ... or not, as the case might be. If the galaxies had formed quickly then here we are; if they had forme ...
- 화산과학동아 199109
- the stratospheric dust cut off a good deal of the sunshine and produced unusually cold temperatures. This was most noted in New England where there was snow every month of 1816, including July ...
- 토성의 테가 사라지고 있다과학동아 199108
- 토론토시에 있는 캐나다 이론천체물리연구소의 루크 돈스씨는 토성주위의 테를 세밀히 관찰하여 왔는데 올해 초 발표된 그의 연구결과는 놀랄만한 것이다.토성을 ... will disappear from our vision, Yet, even so, a sadness sweeps over us when we think that something so marvelou ...
- 우리의 조상인 실러캔스과학동아 199108
- change and did not develop. It is 400 million years old and has scarcely changed in all that time. What a pity it cannot withstand surface conditions. We could study it so much better if ...
- 가장 깊은 호수과학동아 199107
- are over 1,200 different species that live at different levels in the water and, of these, some three-fourths are not found anywhere else.The largest of the Lake Baikal fish are sturgeons, some ...
- 찾기 힘든 쿼크를 찾아서과학동아 199107
- and some may occasionally fall to Earth. Recently, physicists in Japan report they have detected a glob but that has not been confirmed.Once a glob hits Earth's atmosphere, it may break up into ...
- 아인슈타인은 역시 옳았다.과학동아 199106
- experiment they could detect. Such effects were not detected, and even though Adelberger worked only with matter and not with antimatter, he nevertheless came to the conclusion that the ...
- 왜 밤하늘은 어두운가?과학동아 199106
- in the universe, but they don't give off light for an infinite length of time.And what light they do give off has not yet had time to fill the universe.Wesson's calculations show that this must ...
- 좁혀지는 인간과 침팬지의 사이과학동아 199105
- was that the chimpanzee genesequences were closer to those of the human being than they were to the gorilla.This was not accepted easily. This sort of gene sequence technique was tricky and it ...
