Posted by: ntid_lexicon
When: over 6 years ago
Description: "Courtesy of the NTID Science Signs Project at www.rit.edu/ntid/sciencesigns. Signs are continually improved with evaluation and feedback. Please se..."
Posted by: MrJimmyNeutron
When: over 3 years ago
Description: "No description. This sign video was contributed by users of the ASL-STEM Forum: http://aslstem.cs.washington.edu/ "