Criptología digital (Digital Cryptology)

We have summarized the essential of the following texts: From POLITICAL ESSAYS, "The crisis of the Welfare State and the depletion of the utopian energies", from THEORY AND PRAXIS, "The classsical doctrine of politics and its relationships with philosophy", a small fragment of "Science and technique as ideology and the article "Modernity, an uncomplete project".

Ecos, t’mpanos, vibraciones y volumen. V’vidas ilustraciones y textos sencillosexploran la asombrosa ciencia del sonido. Cada libro tiene un glosario, actividades pr‡cticas y fascinantes datos curiosos.

Con este tomo de "Animales Salvajes" vas a conocer uno de los felinos más ágiles, silenciosos y veloces de cuantos existen en el mundo. A través de los textos y de las estupendas fotografías de este libro, descubrirás algunos aspectos curiosos de la vida del leopardo: cómo descansa, cómo se camufla, cómo guarda los restos de sus presas fuera del alcance de otros animales... Sabrás muchas cosas sobre uno de los animales más bellos del mundo.

Have you ever wondered how the wind makes a kite fly? Learn about the wind with this fun STEAM book for kindergarten that makes it easy for parents and teachers to introduce STEAM and beginner science topics to their youngest learners. Created in collaboration with Smithsonian, this Spanish book uses real-world examples to make STEAM topics easier to understand. It features an age-appropriate STEAM activity that is perfect for makerspaces and introduces English language learners to the steps of the engineering design process. It helps beginning readers learn to read and is ideal for...