Friday, March 16, 2007
St. Patrick's Day In Chicago
Everybody in Chicago is Irish on St. Paddy's Day. Every year on St. Patrick's Day, the Chicago River is dyed green. The Pipefitters Union uses fluorescein dye which can also be used to study moving water. While in 1962, 100 pounds (45 kg) of dye were used, more recently the amount has been decreased to about 40 pounds (18 kg). This video gives a bit of history about why St. Patrick's Day is so special for the Windy City.