This article first appeared in the St. Louis Beacon: August 18, 2008 - Up to three centuries ago, at the time of Galileo, there was no clock worthy of the name. The most technically sophisticated instruments used to measure time were sundials.
Sundials date back to about 1500 BC. And today, most are out of sight and out of mind.
But they made a comeback of sorts here earlier this month when the North American Sundial Society (NASS), a group devoted to the study and creation of sundials, met in St. Louis for its 2008 Annual Conference.