Derecho de las obtenciones vegetales

René Voillaume fue el fundador, bajo la inspiración del testamento espiritual del hermano Carlos de Foucauld, de los Hermanitos de Jesús y de los Hermanitos y Hermanitas del Evangelio, presentes en todo el mundo. Fue también impulsor de varias asociaciones y movimientos sacerdotales y de laicos. La vida de sus Fraternidades, centrada en la pobreza, la obediencia y la ayuda a los más necesitados, constituye un ejemplo de vida cristiana que sigue entusiasmando a muchas personas. En el corazón de las masas contiene una colección de cartas y conferencias que expresan la base de la...

When winter hits, many people in colder climates spend most of their time indoors. But what do wild animals do? Some animals spend winters hibernating. Beginning readers will learn what hibernation is, why some animals hibernate and others don't, and how hibernating animals prepare for their long sleep. Full-color photographs grab readers' attention and allow them to draw connections to the narrative. Readers will love learning about this mysterious, restful time in some animals' lives.

Examines the nature of inclined planes and wedges, how they can reduce the amount of force necessary to perform work, and ways in which they are used.

The sun is responsible for all life on Earth, but what exactly is it? Our star is an amazing force that can be as dangerous as it is important. From solar flares to the threat of blowing up altogether, the sun is one of the most interesting things in our solar system. Readers take a trip to the sun to see how it works and exactly what it is made of. They’ll learn about the life cycle of a star and see just how long we have until we have to find a new planet to call home. Don’t worry, they’ll be happy to learn that (hopefully) we have millions of years left!