Showing results for "The Book of Men" in Science & Technology

Los árboles nos dan deliciosas manzanas, pero también ayudan a construir casas. Uno de estos es natural, el otro hecho por el hombre. ¿Puedes identificar el recurso natural? En esta edición de la serie Un libro de comparaciones y contrastes, investigamos objetos comunes que nos rodean y cómo los materiales naturales se transforman en herramientas, juguetes y hasta electricidad.

Trees give us yummy apples but also help us build houses. One of these is natural, the other man-made. Can you identify the natural resource? In this edition of the Compare and Contrast Book series, we investigate common items around us and how natural materials are made into tools, toys, and even electricity.

In 1862, balloons were the only way to reach the sky. But 14-year-old Otto Lilienthal didn’t want to fly in balloons. He wanted to soar like a bird. Scientists, teachers, and news reporters everywhere said flying was impossible. Otto and his brother Gustav desperately wanted to prove them wrong, so they made their own wings and tried to take flight. The brothers quickly crashed, but this was just the beginning for Otto, who would spend the next 30 years of his life sketching, re-sketching, and building gliders.