Porcelain molding has been around for ages. The Scientific American Supplement helps us peak behind the curtain to learn a bit more about this fascinating this process from 1885.\nHead over to Project Gutenberg for the article: http://www.gutenberg.org/files/13939/13939-h/13939-h.htm\nWith host Mike Shafer. \nIf you like the show, please subscribe, review, share, and send over requests for other product manuals to:\nFacebook\nTwitter\nInstagram