From video games to cell phone apps, making sign language easier to learn Put on the gloves. Turn on the camera and...action! Nine-year-old Thomas Nelson is playing a video game called "CopyCat," which is a unique and fun way to learn sign language. Thomas was 2 years old when doctors determined he was profoundly deaf. His mother, Cheryl Nelson, says he couldn't hear the sound of a honking horn from an oncoming truck. For more Science Nation -...