La antigua Grecia (Ancient Greece)

Algorithms might sound like a complicated tech term, but don't be intimidated, people actually use them every day. Using accessible language and full-color photographs, this book simplifies algorithms in an easy-to-understand way. Readers will be amazed to learn that an algorithm is just a set of steps for computers to follow to get things done. STEM topics from the Next Generation Science Standards are emphasized throughout the text. Sidebars featuring key terms help readers grow their tech vocabulary, and fact boxes provide additional opportunities to learn.

In an entertaining way, shows how to add, subtract, multiply, and do long division without a calculator.

¡Hola, hijo de Newton! ¿Así que quieres crear una máquina para teletransportarte e un segundo a Hawái? ¿Y a veces piensas hacer un pequeño Big Bang para tener un universo a tu disposición? ¿O incluso en ocasiones viajar cinco minutos al pasado para seguir durmiendo y no tener que despertar para ir a clase? De la mano de Javier Santaolalla, doctor en física, investigador del CERN y Youtuber, descubrirás cómo lograrlo. En este libro encontrarás un montón de información que hará que tu cerebro explote. Así que ¡ve con cuidado! ¿Listo para que te estalle el cerebro?

La Pequeña historia de Pablo Neruda explica de manera amena y a la vez rigurosa la vida y obra del escritor chileno. Esta nueva edición del libro, revisada y validada por la Fundación Pablo Neruda, recorre la trayectoria literaria y el compromiso social y político del autor de Veinte poemas de amor y una canción desesperada, ganador del premio Nobel en 1971.

People today refer to the Midwestern and prairie states as flyover country. During the Civil War, crossing those areas was the biggest obstacle in uniting the East and West Coasts of our divided nation. An act of Congress in 1862 authorized the Central Pacific and the Union Pacific railroad companies to build a railroad that would link the coasts. Seven years later, on May 10, 1869, an overwhelmingly immigrant labor force completed the task when a rail line was join in Promontory, Utah. The states had become united at last.