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- 강 여행과학동아 1993년 11호
- for crabs. It is now possible to eat crabs and fish taken from the Hudson River, and New York restaurants do good business during the shad run in spring.Some fish may still be dangerous to eat ...
- 호박의 비밀과학동아 1993년 08호
- nowadays, and some of that may eventually become amber.Amber has always been enjoyed by human beings. It feels good to the touch and can be carved. In ancient days, amber jewelry was supposed t ...
- 피부와 태양과학동아 1993년 06호
- more whimsical nature of human beings. The idea is that lightly pigmented human beings have a strong desire to get a good tan for the same reason that some animals are darker on top than undern ...
- 화성에도 물이?과학동아 1993년 06호
- arid Martian surface, scientists have struggled to account for what looks like evidence of the former presence of a good deal of water. The ground seems to be marked by old, dry river valleys. ...
- 최신기술과학동아 1993년 05호
- apart. The resulting ions collide and set up motion in neutral atoms, creating the electric wind, which seems to be good for putting out fires on flat surfaces like rugs, stove tops, etc., with ...
- '파이어니어'와의 안녕과학동아 1992년 12호
- the blast which felled trees in Tunguska, Siberia, on June 30, 1908.Unlike Mars, Venus and Earth are both planets with good-sized atmospheres. On Earth, water wipes away the evidence of much of ...
- 맨틀과 핵과학동아 1992년 12호
- to the minerals as hydroxyl. The mantle's rocks are now thought to have as much water, in the form of hydroxyl, as a good percentage of the oceans, and seem to be an important part of the recyc ...
- Frog-And More In Space 우주공간에서의 개구리과학동아 1992년 11호
- needed to-which is apparent if you try to catch a salamander bent on escape. Furthermore, amphibians have reasonably good lungs, although many can breathe through their skins, too, have efficie ...
- 아라크네의 자식들과학동아 1992년 09호
- parts of the silk.Spider silk can't be woven into cloth, like that produced by the silkworm, but humans do find a good use for it as hairlines in optical instruments. Different spiders use thei ...
- 밝은 성단(星團)과학동아 1992년 08호
- and through dust clouds.The best known open cluster is the Pleiades, called the Seven Sisters by the Greeks, whose good eyesight couldn't let them see the other 3,000 stars in the cluster. It's ...
