31 March 2000
Vol 287, Issue 5462

About The Cover

Cover image expansion

COVER A bag made of 3M-pioneered, multilayer-polymer color mirror is externally illuminated through the front opening with white light. The startling reflective properties, outstanding color tunability, and superb angular performance of this family of thin, flexible mirrors will have applications in signage, optoelectronics, and energy control. See page 2451 [Photo: Don Pitlik, Pitlik Studio]