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- 쓰레기과학동아 l199209
- in-30 chance of the space shuttle colliding with space junk has no doubt gotten worse. An engineer at Johnson Space Center has patented a sort of space broom to sweep up orbiting debris, and th ...
- 밝은 성단(星團)과학동아 l199208
- stars. In our galaxy there are over 125 known globular cluster, moving in a spherical "halo" around the galactic center.The globular clusters we could examine easily seemed to consist of simila ...
- 오늘날의 로봇과학동아 l199207
- is presumably better for the sheep as well as the wool industry.Michael Ali is a graduate student at New York State Center for Advanced Technology in Automation and Robotics (try that in a scho ...
- 멀리있는 실상과학동아 l199205
- Stars burn, collapse, explode destructively. Some galaxies are colliding or obviously did in the past. Galactic centers seem to to contain black holes that swallow even light itself and are su ...
- 왼쪽, 오른쪽과학동아 l199204
- fine motor skills are in the left cerebral cortex. Left-handed people (about one person in 10) have cortical speech centers on either side of the brain or in both.Lefties have been given a pess ...
- 영국에 「무공해 녹색마을」 등장과학동아 l199203
- 것을 직접 보고 체험하게 한다.영국 중부 웨일즈지방의 한 작은 마을(Machynlleth)에 CAT(The Center of Alternative Technology)가 세워진 것은 지난 1973년의 일이다. 당시 유럽의 다른 나라들에 비해 환경오염에 대한 인식과 대책에서 한 수 뒤졌던 영국이 본격적으로 환경문제에 뛰어들기 위한 첫 신호탄으로 ...
- 찾기 힘든 쿼크를 찾아서과학동아 l199107
- are denser than water. The metal osmium has a density of 22 grams per cubic centimeter, for instance.Matter at the center of a star, like our sun, is subjected to so much heat pressure that the ...
- 배타의 원리과학동아 l199103
- produces far fewer neutrinos than scientists expect it to. Someone suspect that in the extreme conditions of the sun's center, the exclusion principle might not hold very well and that this mig ...
- 한국과학재단 강홍렬 이사장과학동아 l199102
- 모두 여섯관문을 통과해야 최종적으로 선발 되는데…최근에 발표된 SRC(Scientific Research Center, 과학연구센터)와 ERC(Engineering Research Center, 공학연구센터)가 과학계에 큰 화제를 불러 모으고 있다. SRC나 ERC로 선정된 연구단체는 처음 만져보는 거액의 연구비에 들떠 있고 탈락 ...
- 블랙홀이 지구에도 있는가?과학동아 l199101
- high density of the Earth as a whole without geologists having to suppose that there is a large nickeliron core at the center of the planet. The Earth might be all rock instead.Again, there are ...
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