Louis Pasteur

Explains The Early History Of How The Bill Of Rights Came To Be And How It Is Used To Protect Citizens.

Provides The History Of Biofuels, Different Uses, Positive And Negative Characteristics, And How They Will Impact The Future.

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.

Discusses the origins of corn, its use in Latin America, its spread throughout the world, different kinds of corn, and other uses for corn products.

"Simple text and photographs present motorcycles, their parts, and how riders use them; in both English and Spanish"--Provided by publisher.

Born in 1452, Leonardo da Vinci is still, today, considered one of the most talent people to have ever lived. From his world famous paintings and drawings, such as the Mona Lisa and the Vitruvian Man, to his ingenious inventions of the parachute, the helicopter, and the military tank, da Vince was always a step ahead of his time. Discover the origins of a man who refused to be defined by just one vocation. Whether science and engineering or architecture and art, Leonardo da Vinci was the ultimate Renaissance Man.

La experimentación es la base de la ciencia, esencial para llegar a comprender por qué y cómo pasan las cosas. La propuesta de experimentos de este libro permite iniciarte en el mundo de la experimentación científica en los campos de la electricidad y magnetismo, el aire, la densidad de los cuerpos, fuerzas y presiones, y el calor. Cada experimento se estructura de una forma similar que responde a cuatro preguntas: ¿Qué queremos demostrar? ¿Qué necesitamos? ¿Cómo lo hacemos? ¿Por qué y qué ha pasado?, y requieren de material sencillo y al alcance de todo el mundo. .