(photos from Mystic (CT) Aquarium 4/17/2003)
Chromatic aberration in the beluga whale tank. The curved plexiglass tank is 4-6 inches thick. Note the yellow coloring on one side of the whale (especially noticeable at the edge of the tail). The other edge was quite blue in color, which doesn't show as well in the photo.
The rocks at the bottom of the tank were quite "colorful" also- notice the photographer's foot reflected in the tank! The rocks are clearly orange-yellow on one side and blue on the other.
Where can you see a mirror made of air? When it's surrounded by water. These bubbles were on the underside of a ledge inside the penguins' pool. The rocks form the back wall. Notice the reflection of the rocks in the surface of the bubble.
