St Patrick’s Day weekend officially gets started in Chicago at 10am this morning with the dyeing of the Chicago River!😍 What you guys think of this?💚🤍🧡☘️ #Stpatricksday #throwback #chicago . “Chicago gets into the festive spirit by dyeing the river green. But did you know there’s science behind this tradition? The recipe is a closely guarded secret -but we know it starts with a vegetable-based powder nicknamed “Leprechaun Dust.” Surprisingly, the powder is orange! When mixed with water, the powder dissolves, and the reaction creates a vibrant emerald hue. The tradition started by chance in the 1960s in efforts to clean the river. The dye was used to identify water pollution-the original formula used oil-based fluorescein, which was eventually determined to cause more harm than good. Today’s version is eco-friendly to protect the wildlife that calls the Chicago River home! On river dyeing day, let’s all appreciate the magic of science and enjoy the festive atmosphere!” . 📸👉 @Chris 👏☘️👏 #irishdaily #tiktokoftheday #stpatricksday #paddysday #chicago #river #irish #patricksday #ireland #fyp #stpatricksdaychicago