Differences?

The differences i see are:

• picture is flipped completely over 
• where the picture was white is now black & vise versa

Negative Photography:

Noting an image in which the brightness values of the subject are reproduced so that the lightest areas are shown as the darkest.

 

Bending:

Light rays adjust direction as they go from air into a sphere shaped container, and they change again when they exit the container and enter air.