d라이브러리
"NOT"(으)로 총 234건 검색되었습니다.
- 바라는대로 되는 것만은 아니다과학동아 l198910
- instantly repeated the experiments and confirmed the existence of nuclear fission. This time the wild and dramatic notion was true.Well, now which is it to be for cold fusion? After all, if col ...
- 녹색 식물의 탄생 How Green Plants Began?과학동아 l198909
- related.Obviously, more work is needed.The technique used in these molecular analyses, however, may come to be used not only to solve this particular problem but to work out the evolutionary de ...
- 가장 약한 파(波)―중력파 The Weakest Wave과학동아 l198909
- so that all four would be affected almost simultaneously. That would make it certain it was a gravitational wave and not something else. There would be tiny differences in the time of detectio ...
- 초기인류의 언어능력을 말해주는 뼈과학동아 l198908
- bone falls loose and it may be deposited far away from the rest of the skeleton. In the remains that have been found, nothing remains of the larynx either, for that matter; so we can't really b ...
- 소행성의 근접신호과학동아 l198908
- formed perhaps 50,000 years ago as a result of a collision. It probably didn't kill anyone because human beings had not reached the Americas yet. In 1908, a much smaller strike in central Siber ...
- 디베이스 프로그램의 기초과학동아 l198908
- Z보다 a가 더 크게 된다는 점이다.논리 연산자는 논리합(.AND.) 논리곱(.OR.) 논리부정 (.NOT.)의 3가지이다. 이들중 논리합과 논리곱은 두 개의 논리값 조합에 따라 결과를 논리값으로 내며, 논리부정은 주어진 논리값을 반대로 만든다. 그 연산표는 (표1)과 같다.디베이스에서 사용할 수 있는 ... ...
- 지하생활과학동아 l198907
- of course, the danger of fire-which may do more damage in the caverns than in the open.By the way, once again I am not a totally dispassionate observer; I happen to like enclosed spaces. Back ...
- 귀소하는 거북과학동아 l198907
- have accidentally discovered the Ascension Is-land beaches, which, for all we know, may have just formed then and may not have existed before, or existed only at long intervals, These turtles c ...
- DNA분자를 처음 보다과학동아 l198906
- shape of bedsprings). Each strand had a complicated shape, and the two strands fit each other exactly.When DNA forms another molecule like itself, the two strands unwind and each one picks up s ...
- 마지막 남은 청정지역과학동아 l198906
- we have a responsibility to try to protect and preserve in as pristine a state as possible the few areas on Earth not yet spoiled by man.Opening up the continent for the pleasure of tourists w ...
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