These sunglasses have a special film that reflects some light as well as
darkening the wearer's vision. In this manner they act as mirrors at
certain angles; they refract more when looking towards sunlight, and less
when facing away. In this instance, the beach at Cummingston (Moray
coast) is viewed as if in a convex mirror owing to the curve of the glass.
(Matthew Davidson, Year 1)
Content
John Reid
j.s.reid at abdn.ac.uk & Jan
Skakle j.skakle at abdn.ac.uk
Last updated
16th June 2006