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시라노 드 베르주락과학동아 l199112

the whole system is pulled down to Earth by the force of gravity.)4. You could fill an airtight container with air, heat it, and force in out of an opening. (This is a vision of the principle o ...

식어가는 온천과학동아 l199110

70s, there was some speculation that a simple drill hole into a geopressured zone would unleash a gusher of geothermal heat plus a quantity of methane, or natural gas.The years of research has ...

화산과학동아 l199109

hurled stones more than three miles.Most volcanic damage is caused by "pyroclastic flow." This consists of superheated gas and ash rolls down the mountainside and catches people before they can ...

찾기 힘든 쿼크를 찾아서과학동아 l199107

of 22 grams per cubic centimeter, for instance.Matter at the center of a star, like our sun, is subjected to so much heat pressure that the atoms are torn apart and the nuclei move around freel ...

왜 밤하늘은 어두운가?과학동아 l199106

old stars die, the light of the universe will gradually fade until there is so much darkness and so little light and heat that life will be impossible anyway?Or will the universe undergo other ...

허블 망원경이 찍은 대폭풍과학동아 l199103

to observe Saturn from space and get far more detailed pictures than we can possibly get from the bottom of our dusty, heat-trembling atmosphere.The HST took a routine look at Saturn in August, ...

블랙홀이 지구에도 있는가?과학동아 l199101

as the source of a hot spot? Even a tiny miniblack hole with a mass of only about 6 billion tons would produce enough heat as it evaporated to account for a hot spot.Trofimenko also points out ...

일본의 기술과학동아 l199101

One way of doing this would be to have the superconductive material drawn not into naked, brittle wires, but to sheath it in copper, which will protect it from breakage. The trouble is that cop ...

차세대 원전개발, 어디까지 왔나?과학동아 l199012

원자로를 냉각시킬 수 있다.또다른 방법으로는 원자로 용기의 표면냉각(surface heat transfer) 방법을 이용하는 것이다. 원자로 표면 주위에 있는 대기(air)의 순환만으로 원자로를 냉각시키는 방법으로 아무런 조치를 취하지 않아도 원자로를 냉각 시킬 수 있다. 그러나 표면온도차이를 적게 하기 위해 ... ...

슈퍼 다이아몬드과학동아 l199010

at Wayne State University in Detroit and found to be super-diamonds indeed. The carbon-12 diamonds can conduct heat 50 percent better than ordinary diamonds can, and they can withstand 10 times ...

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