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예수의 수의과학동아 l198905

nevertheless seems to many to be a miraculous fake.But this is unlikely. For three centuries, scientists have puzzled over how Antonio Stradivari manufactured his violins. They cannot reproduce ...

지진 The Earth Trembles과학동아 l198904

If someone is caught in the open in an earthquake, the shaking of the Earth may be frightening indeed, but it will be over in five minutes or so and you will be safe. If, however, you are with ...

산불의 냉각효과과학동아 l198902

of the interval, temperatures were down by nearly 30 degrees Fahrenheit.The cause of this phenomenon was the burning over the period of a month of 80 squares miles of forest. There have been es ...

물이 많아지고 더워진다과학동아 l198902

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 l198901

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 l198812

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 l198811

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 l198810

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 l198809

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 l198807

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 ...

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