기사 (1건) 리스트형 웹진형 타일형 Between the Future and Fate Between the Future and Fate We have all experimented with putting a straw into water at least once. The fact that near the top of the water line the straw appears to be bent is caused by a different refractive index of light. The light entering a medium with a different refractive index will be deflected and bent.However, if you look at the same phenomenon on Fermat’s minimum time principle, a new interpretation emerges. Fermat’s principle is that when light travels in the form of a line between two points, the path taken is the one that takes the least time. Light travels through the water as a path for the shortest pas Opinion | Lee Joon-hee (IME 17) | 2018-10-10 18:21 처음처음1끝끝