Universo Hawking

Readers may never expect that they might free fall to Earth, but if they have ever dived into a pool, that's exactly what they've done. This Spanish-translated book shows readers how Newton's three laws of motion affect divers, skydivers, and mountain climbers' movements. Readers discover who uses gravity, who works against it, and all other forces that contribute to a successful dive or climb. After reading this Spanish-translated book, readers can decide if they will ever be interested in engaging in one of these extreme sports.

The author tells about the origin and development of two Spanish romances: The Alfambra woman buried alive and The lovers of Teruel. The first recounts the infidelity of a lecherous woman, the Countess of Alfambra, who betrays her husband by delivering him to his enemy; and whose final dénouement is the defeat of the adulterous couple and their being condemned to death by being burnt at the stake. The Story of the Lovers of Teruel recounts the tragic life of one of the members of the Marcilla family, enamoured of a rich damsel who returned his love. However, her father's refusal to consent...

Con motivo del aniversario de la llegada del hombre a la luna, Lumen visita el mundo lunático. Al término de la Segunda Guerra Mundial (1945) las dos potencias más poderosas de la época, la URSS y los EEUU, iniciaron lo que se denominó la Guerra Fría. Una de las disputas más espectaculares fue la carrera del espacio. Tanto los comunistas como los capitalistas querían conquistar el espacio exterior, o que lo pareciese. La URSS iba por delante con sus proyectos Sputnik, pero los EEUU consiguieron ganar la partida más importante: que un hombre pisase la Luna. El 20 de julio del 1969, a...

Have you ever seen a skyscraper that is shaped like an elephant? How about one that looks like waves? Students will learn how to measure area while engaged in reading about the world's coolest skyscrapers! This Spanish book uses real-world examples to teach math concepts, and incorporates nonfiction reading to increase vocabulary and comprehension skills. The practice problems, graphs, and sidebars provide many opportunities for students to practice their developing math skills, and apply what they've learned to their daily lives. Essential text features like a glossary, index, and table of...