origen_especies

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El Origen de las Especies.

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Philosophiae Naturalis Principia Mathematica

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Ancient and Modern Physics, Thomas E. Willson

Theory of Heat Radiation, Max Planck

Theory of Heat Radiation, Max Planck (Inglés – English)

The present volume is a translation of the second edition of Professor Planck’s Waermestrahlung (1913). The profoundly original ideas introduced by Planck in the endeavor to reconcile the electromagnetic theory of radiation with experimental facts have  roven to be of the greatest importance in many parts of physics.

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Cosmos, Carl Sagan

Cosmos, Carl Sagan

El famoso libro de Carl Sagan en Español.

Sagan, Carl – Cosmos

Edición de 1920 del libro Teoría de la Relatividad Especial y General, Albert Einstein en versión original. Extraido gracias al proyecto Gutemberg.

Libro completo en formato PDF.

Relativity: The Special and the General Theory, Albert Einstein