In a room, Takumi is standing in one corner and Nia is standing in the opposite corner. There is a large opaque vase in the center of the room. If Takumi holds up a red ball above his head, can Nia see the red ball or not? Make your response very short.
Nia cannot see the red ball because the large opaque vase in the center of the room blocks her line of sight. Since light travels in straight lines and the vase is not transparent, it prevents Nia from being able to see the ball held by Takumi. The vase obstructs any direct line from Takumi's ball to Nia's eyes, making it impossible for her to see the ball.