Featured Image: EXPLORER EDITION XE-C 2.0 GOOGLE GLASS OPTICAL DISPLAY DEVICE; 2013; Design Director: Isabelle Olsson (Swedish, b. 1983); Manufactured by Google X (Mountain View, California, USA); Titanium, plastic, steel, electronic components, LED, silicon, liquid crystal, carbon, glass, copper ; 2.5 × 13.5 × 21 cm (1 in. × 5 5/16 in. × 8 1/4 in.); Gift of Robert M. Greenberg, 2017-51-13-a,b