The discussion centers on the phenomenon of mirror reflection, specifically addressing why mirrors appear to exchange left and right but not up and down. Participants clarify that mirrors do not actually reverse left and right; they reverse front and back. This misunderstanding is common, and one user shares a personal experience of adjusting their digital camera settings to correct the mirror effect. The conversation highlights the importance of understanding spatial orientation in relation to mirror images.
PREREQUISITESThis discussion is beneficial for physics students, photographers, and anyone interested in the principles of optics and visual perception.
touqra said:Why is it that a mirror reflection only exchange the notion of left-right but not up-down ? I mean if I were to stand in front of a mirror, my mirror image exchanges my left hand with the left, but not my head with my legs.
krab said:Actually, it does neither; it reverses front-back.