Pure Science

Emporio Celestial de Conocimientos Benévolos

"El Emporio celestial de conocimientos benévolos es una cierta enciclopedia china ficcionada por el escritor argentino Jorge Luis Borges en el ensayo El idioma analítico de John Wilkins. (...) Dice Borges en dicho relato: '(...) notoriamente no hay clasificación del universo que no sea arbitraria y conjetural. La razón es muy simple: no sabemos qué cosa es el universo'. (...) Esta lista, cuyo 'descubrimiento' Borges atribuye a Franz Kuhn, ha originado una multiplicidad de comentarios filosóficos y literarios, como el inicio del prefacio de Las palabras y las cosas, de Michel Foucault.

"The celestial Emporium of benevolent knowledge is a certain Chinese encyclopedia fiction by the Argentine writer Jorge Luis Borges in the essay The analytical idiom of John Wilkins ...


"PhySH (Physics Subject Headings) is a physics classification scheme developed by the American Physical Society to organize journals, meetings, and other content by topic. The development of PhySH is motivated by the lack of a fully open, high quality classification scheme for physics. It is intended initially to meet the specific goals of the APS for our journal, meeting, and other content. A longer term goal is to make it available for use by the broader community.

Unified Code for Units of Measure

"The Unified Code for Units of Measure is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business. The purpose is to facilitate unambiguous electronic communication of quantities together with their units. The focus is on electronic communication, as opposed to communication between humans. A typical application of The Unified Code for Units of Measure are electronic data interchange (EDI) protocols, but there is nothing that prevents it from being used in other types of machine communication.

IUPAC Quantities, Units and Symbols in Physical Chemistry

"The purpose of this manual is to improve the exchange of scientific information among the readers in different disciplines and across different nations. As the volume of scientific literature expands, each discipline has a tendency to retreat into its own jargon. This book attempts to provide a readable compilation of widely used terms and symbols from many sources together with brief understandable definitions. This Third Edition reflects the experience of the contributors with the previous editions and we are grateful for the many thoughtful comments we have received.

IUPAC Compendium of Analytical Nomenclature

"The index of this edition contains ca 6,000 entries. The cross-references may help the readers to find the correct terms which they are looking for. (...) It is expected that the readers who are interested in IUPAC recommendations concerning analytical terms and definitions will be able to find them quickly and easily in the Compendium. In the text of the Compendium there are, occasionally, contradicting definitions which result from the fact that the experts of different fields - while trying to do their best-hold different views on certain key issues.

IUPAC Compendium of Polymer Terminology and Nomenclature

"The IUPAC system of polymer nomenclature has aided the generation of unambiguous names that reflect the historical development of chemistry. However, the explosion in the circulation of information and the globalization of human activities mean that it is now necessary to have a common language for use in legal situations, patents, export-import regulations, and environmental health and safety information.

IUPAC Nomenclature of Organic Chemistry

"Chemical nomenclature is used to identify a chemical species by means of written or spoken words and enables a common language for communication amongst chemists. Nomenclature for chemical compounds additionally contains an explicit or implied relationship to the structure of the compound, in order that the reader or listener can deduce the structure from the name. This purpose requires a system of principles and rules, the application of which gives rise to a systematic nomenclature.

IUPAC Nomenclature of Inorganic Chemistry

"The Rules of Inorganic Nomenclature (the 'Red Book'), first published in 1958 by the International Union of Pure and Applied Chemistry (IUPAC), were most recently updated as Nomenclature of Inorganic Chemistry 1990. This new 2005 edition of the 'Red Book' clarifies and updates recommendations concerning the names and formulae of inorganic compounds and reflects major recent developments in inorganic chemistry. Moreover, it presents recommendations fully consistent with the principles of the nomenclature of organic chemistry.