¡Herejes!

Estudioso de la Biblia y comerciante fracasado, hereje judío y eminente intelectual holandés en lengua latina –y, para ganarse el pan, pulidor de lentes–, Baruch (Bento, Benedictus) Spinoza está hoy considerado uno de los pensadores más notables de todos los tiempos, quizá el más radical y controvertido de los filósofos. Nacido en el seno de la comunidad sefardí de Ámsterdam, Spinoza fue apartado tajantemente de ella en 1656, a los veinticuatro años de edad –«... Sea maldito durante el día y sea maldito por la noche, sea maldito cuando repose y maldito cuando se levante. Sea ...

Written with sympathetic humor and compassion, this masterful portrait of upper-class decline made Ivan Goncharov famous throughout Russia on its publication in 1859. Ilya Ilyich Oblomov is a member of Russias dying aristocracya man so lazy that he has given up his job in the Civil Service, neglected his books, insulted his friends, and found himself in debt. Too apathetic to do anything about his problems, he lives in a grubby, crumbling apartment, waited on by Zakhar, his equally idle servant. Terrified by the activity necessary to participate in the real world, Oblomov manages to avoid...

What is work? You may think work is doing chores or going to a job, but you do work every time you move something from one place to another. With experiments that demonstrate these fundamental concepts, discover how you work, and how simple machines make doing work easier.

As they say, necessity is the mother of invention, and this book introduces readers to 14 women who invented very useful, helpful items. They include Chicago native Margaret Wilcox who invented the car heater, Indiana native Marion O'Brien Donovan who invented disposable diapers, Pennsylvania native Stephanie Kwolek who invented Kevlar, and Austria-born actress Hedy Lamar whose secret communications systems led to the creation of WiFi, Bluetooth, and GPS.

Read Along or Enhanced eBook: Discover what it takes to be an Emergency Room doctor in this enlightening, Spanish-translated nonfiction title. Readers learn about the hard work and dedication it takes to have a career as an ER doctor and what a typical day is like in the emergency room. From medical school to residency, medical symptoms to diagnosis, children will learn all about the steps it takes to get involved in this profession. This engaging title features vivid photos, helpful charts and diagrams, informational text, a glossary of terms, and an interview with a real life ER doctor to...