대멸종(Triassic-Jurassic mass extinction)은 각각 시베리아 트랩과 중앙대서양 마그마지대(Central Atlantic Magmatic Province)와 관련된 굉장히 큰 규모의 화산활동이 주원인이라고 보는 시각이 우세하다. 백악기에서 고제3기로 넘어가는 시기에는 급격한 기후변화가 진행됐다는 지질학적 증거도 남아있다. 소행성 ...
"big wind."A hurricane begins its life as a disorganized storm system which forms over warm,tropical waters in the Atlantic.When the storm system became more organized,it is dassified as a "tropical depression,"and given a number by the National Hurricane Center.If the winds in a tropical depression grow in intensity to 40mph,it is re-classified as a "tropical storm,"and it receives a name ...
Fluid Dynamics Laboratory/ NOAA Princeton University, New Jersey. Their projections show that although the North Atlantic ocean's ability to manage global warming would be weakened if carbon dioxide levels doubled, it would never recover if the levels were quadrupled — as is expected.We are, unfortunately, not at all certain that there's any solution to save us from disaster if we don't cut ...
in Manhattan. Before going up the Hudson, the boat circled the river's end — New York harbor, which empties into the Atlantic ocean beyond the Verra-zano narrows between Staten Island and Brooklyn. The harbor has been much cleaner in recent years, thanks to regulations forbidding the dumping of certain pollutants into the river. I can remember when the harbor smelled, but it doesn't any ...
a huge inlet which has a great effect on global climate by sending out cold water that flows at a deep level under the Atlantic and Pacific. And Antarctica's frozen water reveals the history of Earth's air, for in long ice coresthere are bubbles of air that record what was present in that air, at the time it was trapped. Scientists study the unusual abilities of Antarctic wildlife to survive. ...
across the northwestern tip of Colombia, just south of the Panama Canal, which can serve as a land bridge between the Atlantic and Pacific Oceans.They dream also of ways in which water can be brought to the deserts, and taken away from the flood plains of India, and of ways in which the climate can be changed for the better.Of course, the chief problem is that all such dreams can so easily be ...
or the Pacific Ocean ; that's all there is.The Mediterranean Sea is a little different-it is connected with the Atlantic ocean only by the narrow Strait of Gibraltor so that its waters don't mix well with the ocean. Moreover, it is a warm sea so that much water evaporates and this increases the solid content of what's left. Three times as much gold is found in a quantity of Mediterranean ...
by 1000B.C. This was the first case of the actual disappearance of a resource. The Phoenicians traveled vout into the Atlantic Ocean and discovered tin ore in the 'Tin Isles,' which may have been Cornwall in England, and grew rich by monopolizing this valuable material until iron made it comparatively obsolete.Since then, human beings have searched the world over for natural concentrations of ...
상당한 변화가 요구되고 있다.브라질의 원해지역 상공에서 일어나는 이 현상은 SAA(South Atlantic Anomaly)라 불리는데, 이른바 우주과학에서의 '버뮤다 삼각지'를 만들어내고 있는 셈이다. 이 영향권에 들게 되면 우주선이 제멋대로 작동, 데이터를 망가뜨리거나 컴퓨터의 혼란을 유발한다. 심지어는 ...
The Amazon River, the largest on Earth, takes ten years to discharge 20,000 cubic miles of water into the Atlantic Ocean, but the ice-lake may have discharged it matter of a few day only. It would therefore have the effect of a river perhaps a thousand times as large as the Amazon.That water, tumbling into the ocean, may have raised the global sea-level as much as 9 inches in just a few days ...
동아사이언스
디라이브러리
DS스토어
팝콘플래닛
