Lobachevski

Biografía de Azucena Villaflor es un material indispensable para quien quiera conocer detalles del origen de Madres de Plaza de Mayo. Del origen contado por sus propias protagonistas. Y para conocer a Azucena desde tres generaciones anteriores. Pero sobre todo, para recorrer al lado de ella los días tremendos desde el 30 de noviembre de 1976 cuando la dictadura secuestra a su hijo Néstor, hasta que es arrojada desde un avión de la Marina, con vida, al mar.

Few natural forces seem as much like magic as magnets. Perhaps that’s why magnets are so fun! Young scientists will love learning about amazing magnets, both natural and man-made. They’ll discover how magnetism is harnessed to help us in many ways. This STEM-supportive volume contains comprehensible text and photographs of students and scientists utilizing magnets. It also includes a simple, fun concluding activity to encourage readers to use this super science tool themselves.

Excelente livro de histórias bíblicas infantis. Histórias de criação - Os patriarcas e suas histórias - José, o sonhador - Moisés, sua vida e sua obra - A conquista de Canaã Josué - Sanson, o invencível - O profeta Samuel, os primeiros reis

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