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- 지진 The Earth Trembles과학동아 1989년 04호
- in the world now is Mexico City, which has at least 15 million people within reach of a major earthquake and which lost 5,000 people to one that was not very close by in 1985. By the year 2000, ...
- 태양을 스쳐 지나가기과학동아 1989년 01호
- a comet that formed a tail that was 190 million miles long, so that is stretched from the orbit of Mars. It obviously lost a lot of its mass in just that one flyby.Some time in the past, a sun- ...
- 행성군(群)과학동아 1988년 11호
- the nearb star it cirdes. It is therefore much dimmer than a star, and what little light it can give off is utterly lost in the glare of that nearby star.But we needn't actually see a planet to ...
- 자리 바뀐 섬과학동아 1988년 07호
- a very meticulous log of his voyage, giving winds, currents, distance covered, and so on. That log, unfortunately, is lost but part of a copy still exists.Two oceanographers at Woods Hole in Ma ...
- 우리는 지금 몇 살인가?과학동아 1988년 06호
- the Neanderthals from a distance and thus aviod the dangers of close combat. The poor Neanderthals may there-fore have lost almost every battle and shrunk steadily in numbers until the growing ...
- 책의 혁명과학동아 1987년 12호
- small, and the number of copies of a particular book even smaller. Consequently most ancient and medieval books are lost and forever gone. In the 1400s, however, printing with movable type came ...
- 가장 큰 날짐승과학동아 1987년 09호
- Their warmbloodedness must be insulated, since not much of the energy produced with such difficulty can afford to be lost as radiant heat. Birds, therefore, have feathers, a particularly effic ...
