d라이브러리
"sky"(으)로 총 57건 검색되었습니다.
- 대기권 밖의 망원경과학동아 l198904
- surface. Sometimes even the radiation that does get through is obscured because the air scatters sunlight into blue sky that hides everything else during the day, and there are often mists and ...
- 태양을 스쳐 지나가기과학동아 l198901
- It can do this because it possesses a "coronagraph" that blocks out the disk of the sun so that the portion of the sky near it can be seen.In October, 1987, Solar Max photographed two streaks ...
- 행성군(群)과학동아 l198811
- most of the turning, but the star alos turns in a small wobble. When this happens, the star follows a path across the sky in a path that has a very slight wave to it. (Viewed from a distance, o ...
- 동요하는 지구과학동아 l198810
- motions of the stars during the night are closely studied, they are found to make circle about a certain point in the sky that is just over Earth's North Pole.(The North Star is near that point ...
- PART3 위성체 2천년대 초에는 통신위성을과학동아 l198801
- 원래 원격탐사 지상데이타는 누구에게나 어느곳의 사진도 자유로이 공개하도록(Open Sky Policy) 국제간에 합의되어 있으나 여러가지 군사적인 이유 때문에 미국서는 제한을 하고 있다. 한편 1986년 5월부터 영업을 시작한 SPOT은 해상도 10m까지 사진이 가능하며 60×60km지역 또는 줌(zoom)으로 5×5km지역의 ... ...
- 1백억 광년 떨어진 곳에과학동아 l198711
- 형성되었는가에 대한 그들의 견해들을 가다듬게 만들것이다.Finding something new in the sky is always exciting, but finding something new at an enormous distance-as astronomers have just done, in the form of a "double qua ...
- 에너지가 있는 곳으로과학동아 l198709
- well start with something simple, building a passive reflector of sunlight. This would create a small "moon" in the sky that could light up cities or warm farming areas in case of unseasonable ...
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