鏡にうつる自分は左右が逆なの？
When you look into a mirror, it may seem like your left and right sides are switched. But actually, a mirror doesn’t flip left and right. It flips front and back. For example, if you raise your right hand, your reflection also raises its right hand. It only looks reversed because you are facing the mirror. This is a strange but interesting effect that happens because of how we see and think about directions.
