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- 물이 많아지고 더워진다과학동아 1989년 02호
- some of the carbon dioxide it now holds in solution will act to warm the Earth still further.This is not a new discovery that has suddenly been made in 1988. Scientsts have thought about the gr ...
- 태양을 스쳐 지나가기과학동아 1989년 01호
- 63 was moving at least 62 miles per second as it skimmed the sun. It passed the sun and started to retreat in a little over three hours.Even that short a time that close to the sun might seem s ...
- 우주 오염과학동아 1988년 12호
- t remove it. Ideally, we ought to think up some way of periodically cleaning up space, of running a vacuum cleaner over it, so to speak. Unfortunately, there doesn't seem any way, in the forese ...
- 행성군(群)과학동아 1988년 11호
- star might wobble as it approached, then receded, then approached, in alternation.Out of 18 stars studied by Campbell over a seven-year period, all within 100 light-Years of us, nine showed a w ...
- 동요하는 지구과학동아 1988년 10호
- forth. Other factors might be storms causing the back-and-forth movement of water, the advance and retreat of snow cover, and so on.It is astonishing to think that phenomena as familiar as gues ...
- 다이아몬드 개량과학동아 1988년 09호
- enough, the molecule is broken up into a mixture of carbon atoms and hydrogen atoms, If the vapor is then passed over a sheet of glass, for instance, the loose carbon atoms (which have a strong ...
- 마지막 정리과학동아 1988년 07호
- s theorems that remains to be proven, so it is called "Fermat's Last Theorem."Some of the greatest mathematicians over the last 3 1/2 centuries have tackled the problem and retired defeated. Th ...
- 우리는 지금 몇 살인가?과학동아 1988년 06호
- every battle and shrunk steadily in numbers until the growing num-bers of Homo sapiens sapiens were left un-disputed overlords of the Earth.But a report published in February by a group of Fren ...
- 성단(星団)이라는 측정자과학동아 1988년 05호
- may, there-fore, give us reliable distances for the near-est 6,000 galaxies. This will be an important improvement over the present situation, but there are still billions more galaxies. We mus ...
- 우주의 비밀을 알려줄 폭발과학동아 1988년 04호
- about all matter, and have worked out theories to explain how, in the original creation, a slight excess of matter over antimatter was produced in the ratio of a billion to one. Out of that sli ...
