d라이브러리
"year"(으)로 총 90건 검색되었습니다.
- 더 많은 복제과학동아 l199210
- , is mind-boggling, especially to one whose courses in organic chemistry and biochemistry were umpty-ump decades--er--years ago. In June 1992, Santa Fe, N.M., hosted a conference on artificial ...
- 기막힌 풀러렌과학동아 l199208
- to be a way of producing large quantities of fullerene. Other techniques have been found, so the molecule of the year is doing great this year, too. Fullerene research is going on all ov ...
- 멀리있는 실상과학동아 l199205
- radio telescopes do. In 1983, the new Infrared Astronomical Satellite located 500,000 infrared sources. Less than a year ago, the Rosat satellite's X-ray telescope found many thousands of X-ray ...
- 협동과학동아 l199205
- break up into dickering splinters, and as political parties fight with one another and -especially in a big election year - within their own ranks, it's hard to view humanity as a cooperative a ...
- 대규모 탐색 작업과학동아 l199111
- from hundreds or thousands of light-years away, and if we answered, that answer would take hundreds or thousands of years to reach them.What, then, is the use of trying to reach the extr ...
- 식어가는 온천과학동아 l199110
- hole into a geopressured zone would unleash a gusher of geothermal heat plus a quantity of methane, or natural gas.The years of research has reduced optimism in this respect. But Raymond Fortun ...
- 천랑성의 색깔과학동아 l199110
- 하늘에서 가장 밝은 별은 시리우스, 즉 천랑성(天狼星)인데 이별은 희고 뜨거운 다이아몬드처럼 빛난다. 보통 천랑성과 같은 별은 그 색깔이나 ... category on a diagram that measures stars' absolute magnitude and surface temperature) for more than a billion yea ...
- 화산과학동아 l199109
- blew its top so thoroughly that cubic miles of dust were fired into the stratosphere and remained there for several years before settling. Beautiful sunsets were a by product of this eruption.L ...
- 토성의 테가 사라지고 있다과학동아 l199108
- small satellites may also be contributing to the disapperarance, eventually, of Saturn's rings.Of course, 100 million years is a long time on a human scale, and we need not be fearful that the ...
- 하늘은 「화끈화끈」 땅은 「냉랭」과학동아 l199107
- 역사에 기록되고 있다. 이 폭발이 있은 다음 해인 1816년은 '여름이 없었던 해'(the year without summer)로 일컬어질 정도로 전세계 여러 지역에서 추운 여름이 나타났던 것으로 알려져 있다. 한 예로 이 해의 6월 상순에 미국 동부지역은 한파의 내습으로 인해 차가운 폭풍이 몰아닥치고 농지가 얼어붙고 ... ...
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