El sueño interminable

Venerado y vilipendiado a un tiempo, Lobachevski se cierne imponente sobre la matemática del siglo XIX. Al igual que sucede a la mayoría de los mitos, el Lobachevski real está oculto por capas de negligencia y desconocimiento. Su fantástica obra, argumentaban muchos, no era otra cosa que herejía matemática, una senda falsa. Lobachevski es una personalidad abrumadora, un soñador empedernido, un hacedor de mundos imposibles pero reales. Lobachevski es, para muchos, una persona desconocida. Este libro cuenta la historia de un hombre sencillo, pero sagaz, obstinado y profundo desde el...

In a dream, Joaquín meets various animals and discovers that they have very different tails which prove very useful to them.

Latin America’s population is estimated to be well over half a billion people, almost one-tenth of the world’s population, living in thirty-three different countries and territories. This engrossing book explores the people of South America, Central America, Mexico, and the West Indies and provides extensive detail on their diverse cultures. An authoritative overview of the varied and rich traditions of each of these regions is presented, as well as a thorough discussion of the religions, languages, and ethnicities of Latin Americans.

In this exciting, Spanish-translated nonfiction book, readers learn about the Wright Brothers, the history of aviation, how air travel has changed the way people work and live, and the important parts that make the plane fly! Using informational text, vibrant photos, an interesting timeline, and intriguing facts, this book will have readers wanting to learn everything they can about airplanes!