The New York Times bestselling memoir of the heroic young inventor who brought electricity to his Malawian village is now perfect for young readers When a terrible drought struck William Kamkwamba's tiny village in Malawi, his family lost all of the season's crops, leaving them with nothing to eat and nothing to sell. William began to explore science books in his village library, looking for a solution. There, he came up with the idea that would change...

Planes, trains, and automobiles-these are just some of the many achievements of mechanical engineering. This volume will show readers that they do not have to know complex equations to appreciate the impact the field has had on the world. Accessible text introduces young readers to the machines and engines that power the devices, vehicles, and appliances they encounter on a daily basis. Boxes explain important terms and concepts of mechanics and encourage...

September 29, 1913: the steamship Dresden is halfway between Belgium and England. On board is one of the most famous men in the world, Rudolf Diesel, whose new internal combustion engine is on the verge of revolutionizing global industry forever. But Diesel never arrives at his destination. He vanishes during the night and headlines around the world wonder if it was an accident, suicide, or murder. After rising from an impoverished European childhood,...

A brief biography of mechanical engineer Ayanna Howard, discussing how her love of math led her to become a robotics engineer.

El sueño de un niño puede cambiar el mundo entero. Esta es una inspiradora historia, basada en la vida real del autor, sobre el poder de la imaginación y la fuerza de la determinación. Cuando una terrible sequía asoló la pequeña aldea donde vivía William Kamkwamba, su familia perdió todas las cosechas y se quedó sin nada que comer y nada que vender. William comenzó entonces a investigar en los libros de ciencia que había en la biblioteca...