{"subtitle": "Un Libro Sobre Palancas (Ciencia Asombrosa)", "description": {"type": "/type/text", "value": "Ciencia asombrosa: Las maquinas sencillas (Amazing Science: Simple Machines)-Our best-selling Amazing Science series is now available in conversational Spanish. Simple machines are simply wonderful. Dissect the science behind these useful tools to get a better handle on the physics of fun and function."}, "title": "Levanta y Abre", "covers": [1750640], "subjects": ["Juvenile Nonfiction", "Nonfiction", "Levers", "Juvenile literature", "Machinery", "Machinery, juvenile literature"], "key": "/works/OL15039554W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL224931A"}}], "type": {"key": "/type/work"}, "latest_revision": 6, "revision": 6, "created": {"type": "/type/datetime", "value": "2010-04-16T11:51:37.451103"}, "last_modified": {"type": "/type/datetime", "value": "2022-07-18T21:04:56.001299"}}