Please watch the filmed exploration of Hello David in the "Videos" section of the site.
Viewable from Center City Philadelphia skyscrapers and the Ben Franklin Bridge, â€œHello DaviD is a chromatic â€œlens" sculpture dedicated to the brilliant 18th century Philadelphia astronomer and mathematician, David Rittenhouse.
Inspired by Rittenhouse's scientific experiments into the behavior of light and defraction grating, King dedicated â€œHello DaviD in homage to Rittenhouse's spirit. â€œAmong his many accomplishments, which included the discovery of the atmosphere of Venus with a homemade telescope that used natural spider silk, it was his experiments into light and color defraction, using human hair, that paved the way for holography," said King. â€œHis inventions were like works of art."