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The United Nations declared 2015 the International Year of Light and Light-Based Technologies. Here we put the spotlight on lights in nature and in science.
Snapping the jar’s lid closed, Sarah Rivka yelped with excitement. “Gotcha!” she called, and the firefly lit up from inside his new home.
Step inside Home Depot in Southfield, Michigan, and head for the lighting department. Here comes electrician Rick Sikora who’ll shed some light on his work.