Alto secreto

What is a responsibility? How can you be responsible for yourself? Read this book to learn about how and why to behave responsibly.

"A kindergarten-level introduction to polar bears, covering their growth process, behaviors, the habitats they call home."--

Isabel de Alsasua se ve inmersa en una intriga politica tras la que se esconde una secta que quiere sembrar la destruccion. 1911 Europa es un polvorin a punto de estallar. En este clima de tension la inteligencia britanica descubre la existencia de una peligrosa secta, los kalikamaistas. Todos los agentes que intentan infiltrarse en ella mueren antes de descubrir la identidad de sus dirigentes, pero sus informes son preocupantes. La secta persigue regenerar la humanidad a traves de una purga y estan a punto de desarrollar un arma como el mundo jamas ha visto. Dos años despues, Isabel de...

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 book shows readers how Newton's three laws of motion affect divers, skydivers, and mountain climbers' movements. Readers discover who uses gravity, and who works against it, and all other forces that contribute to a successful dive or climb. After reading this book, readers can decide if they will ever be interested in engaging in one of these extreme sports.