Answer
REFRACTION
光的折射
WINDOW QUESTION · ANSWERSTEAM SQUAD
The question
WHAT IS IT CALLED WHEN LIGHT BENDS AS IT PASSES FROM AIR INTO GLASS AND WATER?
光線從空氣進入玻璃和水時彎曲，這個現象叫什麼？
Why it works
THE BENT LIGHT RAYS CROSS, MAKING THE ARROW APPEAR REVERSED
彎曲並交叉的光線，讓箭頭看起來左右翻轉
See it in action · THE WATER IMAGE FLIP
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