"Écriture Étude et enseignement." . . "Société Radio-Canada," . . "Literature." . . "Technologie." . . "Livres Conservation et restauration." . . "Littérature." . . "Documentation de bibliothèque Conservation et restauration." . . "Papier Détérioration." . . "Papier Conservation." . . "Penmanship." . . . "David Suzuki reports on a crisis facing libraries today - the disintegration of books caused by acidic paper and leather. Shows several strategies used by conservationists to prevent books from turning to dust." . . . . . "Internet video"@en . . . "Discusses the deterioration of books, documents the record of the history of civilization, and presents a preservation center that researches methods of preserving weakened books." . "Discusses the deterioration of books, documents the record of the history of civilization, and presents a preservation center that researches methods of preserving weakened books."@en . . . . . . . . "Streaming video"@en . . . . . . "Turning to Dust"@en . "Turning to Dust" . "Host David Suzuki and narrator Angela Fusco present this program on the deterioration of paper in old books around the world. At least one-third of the world's books are turning into particles and dust as they become embrittled. Paper from 500 years ago is in better condition than 150-year-old paper because the original production process did not involve the use of alum. Alum reacts with moisture in paper to create an acid that causes yellowing and embrittling. The earliest paper-making techniques are described and recreated. This program describes various methods of book preservation, including re-binding, photocopying, de-acidification and creating micro-fiche copies."@en . "Host David Suzuki and narrator Angela Fusco present this program on the deterioration of paper in old books around the world. At least one-third of the world's books are turning into particles and dust as they become embrittled. Paper from 500 years ago is in better condition than 150-year-old paper because the original production process did not involve the use of alum. Alum reacts with moisture in paper to create an acid that causes yellowing and embrittling. The earliest paper-making techniques are described and recreated. This program describes various methods of book preservation, including re-binding, photocopying, de-acidification and creating micro-fiche copies." . "The world's libraries are facing a crisis as many of the books which they hold have been printed using highly acidic paper and are slowly disintegrating. This program examines the nature of the problem and the steps that are being taken to solve it."@en . . . . . . . . . . "Turning to Dust"@en . "Turning to Dust" . . . . . . . . . . . "Vidéo" . . . . . . . . . . . . . . . . "Ressources Internet" . . . . . "Nature of things"@en . . . "Nature of things : turning to dust" . . . . "Turning to dust" . "Turning to dust"@en . "Médias Étude et enseignement." . . "Mass media Study and teaching." . . "Paper Deterioration." . . "Library materials Conservation and restoration." . . "Canadian Broadcasting Corporation." . . "Paper Preservation." . . . . "Books Conservation and restoration." . . "Technology." . .