Los últimos bandoleros

Sofía Vasilievna Korvin-Krukovski Kowalevsky se sintió atraída por las matemáticas desde muy joven, pero para poder estudiarlas tuvo que vencer la oposición de su familia, que consideraba que su estudio no era apropiado para una joven. Se vio obligada a aceptar un matrimonio de conveniencia para así poder salir de Rusia y tener acceso a una educación de nivel superior. Tampoco en Alemania las cosas estaban mucho mejor, pero Karl Weierstrass le dio clases privadamente y dirigió su tesis doctoral. Gracias a la intervención de Mittag-Leffler conseguiría una plaza de profesora en...

Everything has a place. Things last longer when we take care of them. Showing respect, responsibility, and stewardship are social skills that even young children can relate to—because they have things they value. In both English and Spanish, this book encourages children to pick up after themselves, put things back where they belong, and ask permission to use things that don't belong to them. It also teaches simple environmental awareness: respecting and taking care of the earth. Includes a special section for adults with discussion questions, games, responsibility role plays, and tips on...

A foundered Victorian ship looking for the fabled Northwest Passage holds a secret in its icy grave... When Dirk Pitt of NUMAr is almost blown to pieces in a lab explosion, he suspects sabotage. The lab in question belongs to a scientist hoping to use a rare mineral to combat greenhouse gases - but who would want to destroy our one chance to save the planet? However, there are those who will do anything to control such a valuable prize. Pitt's investigations take him to the Arctic in search of a clue to the origins of this precious mineral. There he and NUMAr colleague Al Giordino must battle ...

Juan y su pandilla de verano construyen una barca muy especial, con vida propia: La Gaviota. Los pescadores, llenos de envidia y maldad, intentarán acabar con la extraña barca, que sale a la mar sola, por las noches, y vuelve siempre a la playa al amanecer.