d라이브러리
"energy"(으)로 총 127건 검색되었습니다.
- 강 여행과학동아 l1993년 11호
- are still looking for ways to clean fresh water systems of PCBs.Dr. Curtis Olsen, with the U.S. Department of Energy, has recently mapped out the flow of contaminants in rivers, using radioacti ...
- 모두를 위한 남극과학동아 l1993년 07호
- says, the South Pole of Earth is the nearest thing to being in space. Four major projects are under way, from high-energy experiments and neutrino detection to the discovery of brown dwarf star ...
- 최신기술과학동아 l1993년 05호
- preserve the integrity of containers for nuclear waste products.Efforts are now being made convert waste into useful energy or products. Waste Conversion Systems Inc., in Englewood, Colo., has ...
- 맨틀과 핵과학동아 l1992년 12호
- heat convection of the outer core's fluids plus the growth of the solid inner core, now so big that the gravitational energy it contributes may be the most important part of the geodynamo.Geoph ...
- Out Of The Sun 태양으로부터과학동아 l1992년 11호
- which comes in two speeds-high and low energy. Until this year, "neutrino detectors" could register only high energy neutrinos. Raymond Davis, in the '60s, used tanks of carbon tetrachl ...
- 블랙 홀 탱고과학동아 l1992년 10호
- matter forms around the black hole. As the matter from the accretion disc falls into the black hole, it gains kinetic energy that's converted into radiation-X-rays. Fortunately, we can detect t ...
- 밝은 성단(星團)과학동아 l1992년 08호
- been given an extra amount of lifetime. The other is the "millisecond pulsar," formed when ordinary stars use up their energy resources and collapse to small dense objects whose radio signals r ...
- 핵사찰로 주목받는 우라늄과 플루토늄과학동아 l1992년 06호
- 레이저 동위원소 분리법이 있는데 이는 ${U}_{235}$와 ${U}_{238}$의 여기 에너지(excited energy)의 차이를 이용하는 방법이다. ${U}_{235}$와 ${U}_{238}$은 근소한 여기에너지 차이가 있어서 아주 정확한 에너지를 가해주게 되면 ${U}_{235}$만 여기상태로 만들 수 있고 이 여기된 상태의 ${U}_{ ...
- 단백질의 위력과학동아 l1992년 06호
- literally make life move. At a recent conference the big question was - - how do protein machines use the chemical energy? Some people think the trick is done by changing shape, but otheres dis ...
- 타이탄의 대기과학동아 l1992년 02호
- very interesting because ethane is sort of midway between natural gas and gasoline. It bums very nicely and supplies energy just as oil does. In fact, it might turn out that Titan is the larges ...
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