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"over"(으)로 총 127건 검색되었습니다.- 우리는 지금 몇 살인가?과학동아 198806
- 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 198805
- 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 198804
- 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 ...
- 가장 생명력이 강한 것과학동아 198803
- insect species. Roaches and mosquitoes flourish, for instance, though every person's hand is against them.The vast turnover in numbers means that evolution proceeds at an enormous rate among in ...
- 옛 괴물들과학동아 198802
- long, and some that weigh as much as 3 1/2 ounces. But about 300 million years ago, there were dragonflies with bodies over a foot long and a wingspread of up to 2 1/4 feet. It life degeneratin ...
- 가솔린 바다과학동아 198802
- sun might be too weak to do the job, but Triton, like the universe in general, is bombarded with cosmic rays, and over billions of years they should have built up the molecules. There may, ther ...
- 나무 달력과학동아 198801
- the weather back 11,000 years. They can't go farther back than because before 11,000 years ago, northern Europe was covered by the glacier of the Ice Age. Nevertheless, they will have a calenda ...
- 시베리아에서 있은 폭발과학동아 198801
- poking around in the area and, even today, are uncovering new evidence concerning it. On June 30, 1908, the skies over central Siberia, near the Tunguska River, lit up and there was a te ...
- 영국-프랑스를 해저로 연결 20세기의 대역사 유로터널과학동아 198711
- 3시간이면 돼 비행기(수속시간포함)와 맞먹고 다른 교통편(국철+ferry 6시간45분, 국철+hovercraft 5시간45분)보다는 빨라 경쟁력이 우수하다.완벽한 안전대책유로터널은 한마디로 첨단과학기술의 결정체라고도 할 수 있다. 해저를 뚫는 고도의 토목기술, 초고속의 열차제작, 3분마다 1대식 초고속열차가 ... ...
- 가장 중요한 화석과학동아 198711
- was merely a primitive lizard and that once the fossil had been discovered, a layer of cemet had been placed over it and into that cement had been pressed modern feathers intended to lea ...
