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The “Robot Kit” Contest is open to residents of the 50 United States, Washington, D.C., Puerto Rico, and Canada (excluding Quebec), who are at least 18 years of age. Employees and their immediate families (spouse, parents, children, siblings, and their respective spouses), including household members of Popular Science magazine, Time4 Media, Time Inc., and their respective parent companies, affiliates, subsidiaries, divisions, and advertising and promotion agencies are not eligible to enter or win.