refraction
🇺🇸
/rɪˈfrækʃn/
🇬🇧
/rɪˈfrækʃn/
When light or other waves bend as they move from one medium to another at an angle.
We can see the bottom of the pool because of refraction, which makes the light bend as it moves from water to air.
私たちは水から空気に移る際に光が曲がる屈折のせいでプールの底を見ることができます。