모두 안 펴질 확률은 15만분의 1이다. 패러글라이딩낙하산(parachute)과 행글라이딩(hang gliding)의 합성어. 달리거나 제자리에서 이륙해 별도의 동력장치 없이 낙하산을 이용해 활공한다.산 정상이나 능선에서 약 10m 정도 도움닫기 후 비행한다. 평균 속도는 시속 20∼40km이며 10m 높이에서 이륙하면 약 40m ...
circumstances.May be your momma lives around the corner and she refuses to leave her home,so you figure you need to hang around for her sake.Maybe you've never been through a bad storm and you just don't know what you're getting into.In-between these two extremes are the majority ofus.We know that that stormin the Gulf could possibly generatea world of hurt,but we don't want just to up and ...
are long chains of carbon atoms, with a few other atoms added to them ; chains that do not occur in nature. The chains hang together so tightly that ordinary influences in nature, such as air and water, just bounce off harmlessly. Because they do not occur in nature, the natural enzymes that have been evolved in all forms of life from bacteria and molds to men and elephants, and that serve to ...
동아사이언스
디라이브러리
DS스토어
팝콘플래닛
