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"earth"(으)로 총 218건 검색되었습니다.
- 호박의 비밀과학동아 1993년 08호
- weevil is from the early Cretaceous period, about 120 to 135 million years ago — when dinosaurs were Top Animal on Earth. So far, this is the oldest DNA ever extracted and studied.DNA from ambe ...
- 화산·얼음·물과학동아 1993년 08호
- bottles of carbonated beverages. In turn, the volcano-caused air pollution would cut out more sunlight, cooling the Earth still more. The ice age would increase.Volcanoes, even undersea, can be ...
- 친할 만한 곰팡이균과학동아 1993년 07호
- plant kingdom. Although fungi are organisms that seem to be plants without chlorophyll, they may have separated from Earth's plant kingdom when animals did, 1.1 billion years ago.According to D ...
- 모두를 위한 남극과학동아 1993년 07호
- and astronomers are prominent among the scientists on Antarctica, for as Dr. James Sweitzer says, the South Pole of Earth is the nearest thing to being in space. Four major projects are under w ...
- 물리- 엔트로피는 시간이 갈수록 증가한다과학동아 1993년 07호
- 생명체로 보지 않고 태양-지구계에 유일한 생명인 '지구상의 우주적 생명'(global life on earth)으로 거시적으로 보는 견해도 있다(장회익, 과학과 메타과학).에너지의 흐름이라는 입장에서 보면 사람도 하나의 에너지 변환 기계에 불과하다. 사람이라는 기계는 매일 먹는 음식을 산화시켜 얻는 에너지의 ... ...
- 화성에도 물이?과학동아 1993년 06호
- happens to it is not simple, and provides endless fascination for scientists, as two new studies will demonstrate.On Earth, water tends to be labeled according to where it is. Surface water inc ...
- 가상현실과학동아 1993년 05호
- material like toxic waste. In space exploration, remote control has already been demonstrated, as technicians on Earth used robot hands to scoop up Martian soil samples. With VR techniques well ...
- 최신기술과학동아 1993년 05호
- through the air. The planet is ONE, and we have to face up to the problems of our technology as they affect the entire Earth.With this preamble, it seems safe to launch into an update on curren ...
- 먼지의 영향과학동아 1993년 04호
- Volcanic dust is composed of tiny grains that can persist in the atmosphere for a long time. Pinatubo's dust has given Earth red sunsets for the past two years. In 1815, when Tambora erupted in ...
- 아주 높이 있는 먼지과학동아 1993년 04호
- by such a dust-laden atmosphere that life was inhibited, but organic compounds (not life) had been delivered to Earth in that dust. It is from those organic compounds that life may have evolved ...
