Un día en... el Imperio Romano (Un día en...)

In AD 79, the residents of the booming Roman city of Pompeii were shocked when a nearby mountain exploded, releasing superhot ash, rock, and gas on the surrounding areas. What happens next is the extraordinary account of a volcano in action. Though the people who didn't flee Pompeii were doomed, the volcano preserved their remains, allowing us to better understand a fascinating time in the Roman Empire. Astonishing photographs of Pompeii, primary source records of the occurrence, and riveting text are just some highlights of this high-interest volume.

Read Along or Enhanced eBook: Learn all about the amazing things your brain does and how to keep it healthy and strong! Readers will discover the anatomy of the brain including neurons, the cerebellum, and the nervous system. Using vibrant images and informational text in conjunction with supportive diagrams, this Spanish-translated nonfiction title encourages readers to learn all about (and use) their brains.

¡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?

Meet Ada Lovelace, the British mathematician and daughter of poet Lord Byron. Part of the beloved Little People, BIG DREAMS series, this inspiring and informative little biography follows the colorful life of Lord Byron’s daughter, from her early love of logic, to her plans for the world's first computer program. As a child, Ada had a big imagination and a talent for mathematics. She grew up in a noble household in England, where she dedicated herself to studying. Her work with the famous inventor, Charles Babbage, on a very early kind of computer made her the world's first computer...