Home » BBC News - Technology » technology news » VIDEO: What is 4D printing? VIDEO: What is 4D printing? Unknown 1:57 AM BBC News - Technology technology news You might have heard of 3D printing, but what about 4D? We've heard from the team who are printing in time... from BBC News - Technology http://ift.tt/1QNxSup Share: Facebook Twitter Google+ StumbleUpon Digg Delicious LinkedIn Reddit Technorati