Project Gutenberg 2010-02-05 Public domain in the USA. 150 Sampaio, Diogo de Carvalho e 1750 1807 Carvalho e Sampaio, Diogo de De Carvalho e Sampaio, Diogo Sampayo, Diogo de Carvalho e 31008249 Tratado das Cores Que consta de tres partes: analytica, synthetica, hermeneutica E-text prepared by Julio Reis and the Project Gutenberg Online Distributed Proofreading Team (http://www.pgdp.net) "Tratado das Cores" by Diogo de Carvalho e Sampaio is a scientific publication written in the late 18th century. The text explores the nature of colors, categorizing them into primary and secondary qualities, while detailing principles of color mixing and the effects of light on perception. The audience likely includes artists and enthusiasts of natural sciences looking to understand color theory in greater depth. The opening of the work sets the stage for a comprehensive exploration of color, introducing the author’s intent to share his observations and hypotheses about how colors interact within the natural world. The text begins with a discussion on the distinctions between primary and secondary qualities of bodies, emphasizing that colors arise through various combinations of simple elements. The author references notable philosophical perspectives, including those of Aristotle, Cartesian thinkers, and Isaac Newton, aiming to establish a framework within which he examines the foundational elements of color and its manifestation in nature and art. (This is an automatically generated summary.) Reading ease score: 48.5 (College-level). Difficult to read. pt Colors QC Text PT Ciência e Técnica Category: Science - Physics Category: Art 225146 2025-07-12T15:18:38.124811 text/html 228508 2010-02-05T14:29:42 text/html 8621606 2025-07-12T15:18:47.531763 application/epub+zip 8612787 2025-07-12T15:18:41.579844 application/epub+zip 147029 2025-07-12T15:18:39.923802 application/epub+zip 8745321 2025-07-12T15:18:51.808784 application/x-mobipocket-ebook 8699661 2025-07-12T15:18:45.804767 application/x-mobipocket-ebook 246586 2022-09-14T10:41:39.213938 application/x-mobipocket-ebook 157318 2025-07-12T15:18:37.170809 text/plain; charset=us-ascii 155175 2010-02-05T13:54:35 text/plain; charset=us-ascii 18983 2025-07-12T15:18:51.959736 application/rdf+xml 11556 2025-07-12T15:18:40.437805 image/jpeg 2956 2025-07-12T15:18:40.181791 image/jpeg 56786 2010-02-05T13:54:35 application/octet-stream application/zip 8160800 2010-02-05T14:35:05 application/octet-stream application/zip 8307139 2025-07-12T15:18:38.261801 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog