Un club matemático para la diversidad

Esta es la historia de Bart, el niño que soñó con las Súper-Ratas, un ejército de roedores entrenados para mejorar la vida de las personas. Pero lo que nadie esperaba es que ayudaría a salvar la vida de miles de personas. Gracias a su olfato, las ratas de Bart detectan minas terrestres por toda África y ayudan a la investigación de enfermedades como la tuberculosis. Con su amor por los animales, su creatividad y perseverancia, Bart ha contribuido a crear un mundo mejor. La historia de Bart Weetjens es la de alguien que, desde muy joven, se dio cuenta de que había cosas a su alrededor ...

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.

You don't have to live in Europe to be a soccer aficionado. Known as "football" to most people, soccer is a game of speed, skill, and intricate teamwork. Among the many inspirational athletes who make soccer such an exciting sport, few compare to Lionel Messi, the renowned professional footballer from Argentina. Messi's record-breaking skills on the field have earned him the adoration of soccer fans across the globe. In this biography, readers will be exposed to one of the greatest soccer players of all time: a man whose life story is just as thrilling as his incredible ability to score goals.

Discusses the various features of Australia, including its climate, mountains, rivers, lakes, animals, vegetation, coral reefs, flightless birds, population, and cities, and history of the Aborigines.