March 29, 2013 10:44 am Teen Builds Hi-Tech “Helping Hand” A Pennsylvania teenager’s prize-winning science fair experiment could end up changing lives. His “Helping Hand” is a voice-controlled robotic grasper that only responds to its assigned user. US & World Videos 4:17 Kelly Clarkson meets NHL's first female Stanley Cup keeper 2:33 Nicholas Galitzine reveals favorite ‘The Idea Of You' scene with Anne Hathaway 1:46 Anne Hathaway reflects on chemistry read with Nicholas Galitzine for ‘The Idea Of You' 2:08 Travis Kelce calls Taylor Swift his ‘significant other' as they attend Charity Gala Date Night 1:40 Charlie Puth reacts to Taylor Swift's ‘The Tortured Poets Department' name-drop