No me crucifica ni Dios

What causes sound? How does sound travel? Sound begins when matter vibrates. Without this vibration sound could not move and nothing would make any noise. Starting with tiny molecules, this book explains the main concepts of sound and furthers understanding through a series of easy-to-do experiments that will appeal to readers of all ages.

Lo más increíble de mi historia es que aún mi familia sigue viva en la memoria de las personas que se interesan por mi cultura Chinchorro y que cuidan de nuestras momias. Nos han ayudado a permanecer en la tierra por miles de años y han difundido nuestra historia por el mundo entero como, por ejemplo, a través de este libro. ¡Muchas gracias por desear saber más de mí!

Chile offers complete coverage of this fascinating country, including sections on history, geography, wildlife, infrastructure and government, and culture. It also includes a detailed fact file, maps and charts, and a traceable flag.

The unsinkable luxury liner known as the Titanic may have sunk on its first transatlantic voyage in 1912, but people remain riveted to its storied legend. The collision with the iceberg in the North Atlantic was not the only mistake that was made that day. In this spellbinding volume, readers will learn about the passengers and crew aboard the doomed ship and what really happened that tragic night. Historical photographs will transport them back to the glamorous era, while the narrative paints an absorbing picture of the Titanic's sad fate.