jigsaw puzzle)을 처음 시작할 때는 어떤 조각을 어디에 맞춰야 하는지 도저히 종잡을 수 없다. 하지만 몇 번 하다 보면 요령이 생긴다. 테두리를 만드는 조각만 따로 모아서 맞추거나, 모양과 색깔에 따라 조각의 묶음을 만들어 퍼즐을 맞추면 전체 그림 중 일부를 맞출 수 있다.퍼즐조각이 제자리를 ...
without explaining why I want these two and no others. The only reason I may give is that after I played with the puzzle with capacities 3, 5, 8 and then with 5, 7, 12, I noticed something that allowed me to form a very plausible, general conjecture which later became the Proposition I am proving.The fact I have noticed is exactly how to select the two numbers I need at this stage.Thus, let X ...
he inscribed the margin with his famous Last Theorem. Bachet, however, is also famed as a collector of mathematical puzzle which he published in 1612 Probl es plaisans et dlectables qui font par les nombers. It contains many of the problems referred to above, river crossing problems, weighing problems.What is the least number of weights that can be used on a scale pan to weigh any integral ...
시리즈 등이 대표적인 비행 시뮬레이션 게임이다.이외에도 테트리스(Tetris) 같은 퍼즐(puzzle) 게임과 배틀체스(Battle Chess) 같은 보드(board) 게임, 그리고 하계 올림픽(Summer Challenge) 같은 스포츠 (sports) 게임도 있다.만화책을 보거나 롤플레잉 등의 컴퓨터 게임을 즐기는 아이들에게는 공통점이 있는데, ...
matter in the universe.One particle coming out of the sun is the neutral neutrino, a tiny object but a perennially big puzzle. In the past, scientists believed that the flood of neutrinos from the sun was an exact measure of the nuclear fusion presumably going on inside the sun.Twenty-five years ago, when solar neutrinos were first counted, scientists were startled to find fewer than had been ...
of presenting a drawing that resembles a put-together jigsaw puzzle with only a few pieces.Surrounding it are similar puzzles with the pieces turned around, and separate. The idea is to pick the drawing of scattered pieces that exactly represents the original puttogether puzzle. Artists and structural engineers, and even many doctors, are good at this. Machines are not.Soon robotic devices ...
피할 길이 없게 된 것이다. 이것이 '태양이 방출하는 중성미자의 수수께끼'(solar neutrino puzzle)다. 수수께끼란 항상 해답이 있게 마련이다.이 경우도 역시 예외가 아니다. 그 해답은 대충 아래와 같다. 중성미자는 한 종류가 아니고 두 종류 이상이라는 가정이 이 난제를 풀어 주었다. 전자와 반응을 ...
so on. On top of all that, most forms of life don't die under conditions that result in fossilization. Therefore, many puzzles remain in our attempts to make sense out of the fossil record.For instance, mammals developed from reptiles on land as long as 200 million years ago. Since then, almost all types of mammals have continued to live on land. Some mammals have returned to a water ...
문제를 해결하기 위해 최근에는 첨단기술을 이용한 고도의 기계식 입체주차 방식(puzzle parking)을 개발, 국내에서도 그 보급이 확대되고 있다. 앞으로 이 방식은 도시주차문제 해결에 획기적 계기가 될 것으로 전망된다.이 방식은 한마디로 토지이용의 효율을 높이기 위해 기계를 이용, 입체적으로 ...
How did it take off? It's a puzzle. That goes for the extinct vulture and for the large pterosaurs, too. Another puzzle is why animals that existed in the past were so much larger than any now living. The largest living primate is the lowland gorilla, which is as tall as a man and may weigh up to 400 pounds. A few million years ago, however, there lived a still larger species, ...