¿Por quién vota la gente? (Who Do People Vote For?)

Whether you call your January 6th celebration El Dia de los Reyes or the Feast of the Epiphany, you're celebrating a day dedicated to the three kings. Sometimes called the three wise men or the magi, these figures are part of the Christmas story and often appear in nativity scenes during this time of year. In some places, they're more important than Santa Claus. In this volume, readers discover the history of the three kings' story as well as how they are celebrated in cultures around the world today.

Como es sabido, el diseño surge como consecuencia lógica del desarrollo industrial de las sociedades tecnológicamente más avanzadas y puede explicarse, por tanto, en función de esa relación causa-efecto. Sin negar su obvia dependencia de tiempo y lugar, las razones del diseño, sus lecturas e interpretaciones, no se agotan en el exclusivo ejercicio metonímico, desde fuera, sino que invitan a ser entendidas también desde dentro, a partir de su propia realidad física y la reflexión que en ellas palpita. El libro adopta este criterio en su parte esencial: emparentar realizaciones...

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.

There is a bright light in the night sky. Sometimes it is round like a ball, sometimes it is a crescent, and sometimes it is not there at all! What is this strange and changing thing? It is the moon, of course! Read all about our moon and the moons surrounding other planets in this Spanish-translated book.

Dams change the landscape, providing reservoirs of freshwater and even producing electricity. Discover the engineering behind dams.