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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for...

Se recoge aquí el debate que en 1989 se inició entre la íética del discursoî defendida por el filósofo alemán Karl-Otto Apel, y la íética de la liberaciónî defendida en Latinoamérica por Dussel y otros. Aparecen también los notables textos de Apel sobre Habermas.

Tras la fascinación visual que ejercen sobre nosotros las pirámides de Egipto, llenas de magia y misterio, late siempre la perplejidad: ¿cómo se las arreglaron los antiguos egipcios, hace 4.500 años, para levantar esas espléndidas estructuras?, ¿cómo resolvieron los complicadísimos problemas de ingeniería que planteaba un proyecto tan colosal? ¿cómo se organizó la inmensa mano de obra necesaria para su construcción? Craig B. Smith, ingeniero de formación, nos explica en este libro –bellamente ilustrado- los secretos de la planificación y la erección de la Gran Pirámide de...