At the 2010 Olympic Winter Games in Vancouver, 20 lasers were
used in a nightly light show in which people from around the
world controlled the beams through public Internet access.
mirror—which was made of aluminized Mylar and spanned 90 feet
across. In the main hall, visitors could see their reflections
hanging upside down above their heads. To get to that hall, they
walked through a dark clam-shaped room illuminated by sound-
activated laser beams shining downward and tracing Lissajous
figures on the floor. E.A. T. commissioned Cross and Jeffries to
design the laser-and-sound display. An estimated 2 million
people visited the Pepsi Pavilion during the six months of Expo
’70. However, according to Cross’s website, company officials
were not able to maintain the technical exhibits to the artists’
standards, and the building was demolished soon after the
exposition ended. Cross moved to the University of Iowa and
created a mixed-gas argon-krypton ion laser show—complete with
symphony orchestra, soloists and el