¿Surgió algo bueno tras la Gran Depresión? (Did Anything Good Come Out of the Great Depression?)

Have you ever wondered where inventors get some of their ideas? This answer may surprise you: sometimes the inspiration comes from plants! Learn how some tiny plants have made a huge difference in the world.

Surveys the life of the American statesman, lawmaker, writer of the Federalist Papers, and first secretary of treasury under George Washington.

Where did the sunflower come from? How does it grow so tall? How can its thin stalk support such a large and heavy head? These and many other questions are answered in this dazzling book. Using lushly detailed illustrations and photographs, the book takes us inside the sunflower to examine its stem, root system, leaves, and flowering heads, proving an understanding of this unique plant's structure, growth, flowering, reproduction, and cultivation.

¿Sabías que el mismo viento que te revuelve el cabello puede usarse para generar energía? Pero, ¿cómo exactamente se aprovecha el viento? ¿Y cuál es el efecto sobre el medioambiente? Lee este libro para aprender todo sobre la energía eólica. Did you know that the same wind that messes up your hair can be used to create energy? How exactly do you harness the wind? And what is the effect on the environment? Read this book to find out all about wind energy.