El fantasma negro

In 1862, the American Civil War was underway, actively tearing the United States apart. At the start of the war, President Abraham Lincoln's main goal was preserving the Union, but he was now ready to make a stand on slavery. The Emancipation Proclamation was one of the most important documents of its time, but its contents can be confusing. This volume gives readers context for the proclamation, as well as explains what it says and its results, in uncomplicated language appropriate for those reading below level and those looking for a review of this subject.

Esta obra también se la conoce como Un mensaje a García, Carta a García, La carta a García. En él, en primer término, relata brevemente la anécdota del soldado estadounidense Rowan, que es llamado para entregar de parte del presidente de Estados Unidos, un mensaje al jefe de los rebeldes, oculto en la sierra cubana, en el curso de la Guerra hispano-estadounidense a fines del siglo XIX. Hubbard resalta el hecho de que Rowan recibe el mensaje y se limita a entregarlo a pesar de que nadie le proporcionó información ni medios para encontrar a García, para lo cual Rowan recorre a pie la...

Born in Warsaw, Poland, on November 7, 1867, Marie Curie was forbidden to attend the male-only University of Warsaw, so she enrolled at the Sorbonne in Paris to study physics and mathematics. There she met a professor named Pierre Curie, and the two soon married, forming one of the most famous scientific partnerships in history. Together they discovered two elements and won a Nobel Prize in 1903. (Later Marie won another Nobel award for chemistry in 1911.) She died in Savoy, France, on July 4, 1934, a victim of many years of exposure to toxic radiation.

What does this Spanish-translated book, a table, and your big toe have in common? They are all solids! A solid keeps its shape and always has the same volume. Read this Spanish-translated book to learn about solids and how they are different from liquids and gases.