D라이브러리

on two or more bodies is to be avoided.4. Individual names chosen for each body should be expressed in the language of origin. Transliteration and pronunciation for various alphabets should be given but there will be no translation from one language to another. Most planetary maps are published in the United States; however, maps published in other countries use the language of that country. ...

14 pieces leading to a game similar to Tangrams involving making figures from the 14 pieces. Tangrams are of Chinese origin and require little mathematical skill. It is interesting however to see how many convex figures you can make from the 7 tangram pieces. Note again the number 7 which seems to have been associated with magical properties.Fibonacci, already mentioned above, is famed for his ...

formed by condensation from the original solar nebula. Some of the dust is, however, thought to be of a different origin from the rest. It may be that all comets have a complicated history we have yet to explore fully.Dust beyond our solar system can annoy astronomers, since dust clouds in the Milky Way galaxy obscure the view of optical telescopes. But radar telescopes get past the dust.Dust ...

정확한 답은 1977년에 출간된, 이 문제의 출처인 줄리안 제인스(Julian Jaynes)의 책(The Origin of Consciousness in the Breakdown of the Bicameral Mind)에 넘기고, 이런 문제들로부터 인간과 우주의 비밀에 대한 도전이 시작된다는 것만을 전하고 싶을 뿐이다 ...

단백질은 과히 신통치 않게 들리는 단어로서 영양분을 연상시킨다. 우리는 단백질과 많은 탄수화물과 약간의 지방질을 섭취해야 한다. 사람들은 가공식품을 살 때 함유목록을 훑어 ... those proteins will help humanity delve further into the mysteries not only of cellular pathology, but into the origin of life itself ...

out of this ocean soup that the first primitive forms of life appeared.Not everyone agrees with this picture of the origin of life but it has been a popular version, and we all know what an "ocean soup" is.However, even the ocean soup is not the first of the species. If the universe is expanding as astronomers are certain it is, then if we reversed time and imagined the universe growing ...

설명하기 어려운 문제중의 하나다. 일찌기 찰스 다윈(Charles Darwin)이 '종의 기원'(The Origin of Species)을 저술했을 때에도 캄브리아기에 들어서면서 나타났던 생물의 '폭발적 번성'은 그의 진화이론을 설명하는데 가장 커다란 걸림돌이 됐다. 다윈은 이 문제에 대한 해답으로 캄브리아기 퇴적층 아래에는 ...

can be left. Nevertheless, scientists are searching eagerly for any trace of its existence. The reason is simple. The original indication of the strike is a thin layer of rock 65million years old found all over the world, which is comparatively rich in the rare metal, iridium. Meteorites are richer in iridium than Earth's crust is, so it may have been meteoric in origin, but there are other ...

13 years after their crucial experiments, received the Nobel Prize.Presumably having sharpened our knowledge as to the origin of cancer, scientists might labor to identify the proto-oncogenes, to study carefully how the changes that form oncogenes out of them come about. The hope would be that appropriate treatment might prevent or, at least, diminish the chances of öncogene-formation, or to ...