Un día en... el Imperio Romano (Un día en...)

If asked to define a forest, readers might say, "It has a lot of trees." But many places have a lot of trees. So, what makes a forest a forest? Readers discover that a forest is unlike any other biome on Earth. And a temperate forest is even more specific. Readers learn the many life cycles found within a forest and how the energy pyramid explains the numbers of forest plants and animals. In addition, readers learn by examining how forces usually considered destructive work to help forests survive. 32pp.

Diego de Torres (1694-1770) ha pasado a la historia como el creador de uno de los textos más importantes de la literatura española, Vida, ascendencia, nacimiento, crianza y aventuras de Don Diego de Torres Villarroel.

A nueva aventura de la detective más sofisticada de los años veinte que ha conquistado a los lectores de medio mundo. Sin perder ni un ápice de su inimitable estilo, la siempre intrépida y sugerente Phryne Fisher vuela aún más alto en esta segunda entrega. Encantada con su nuevo papel de investigadora privada, Phryne hará lo imposible por desbaratar los planes de unos siniestros secuestradores o por evitar las consecuencias de un tenso enfrentamiento familiar, todo mientras planifica su intensa vida amorosa o invita a cenar a una amiga en el lujoso hotel Windsor, por supuesto. Ya sea...

"Some things are so huge or so old that it's hard to wrap your mind around them. But what if we took these big, hard-to-imagine objects and events and compared them to things we can see, feel and touch? Instantly, we'd see our world in a whole new way." So begins this endlessly intriguing guide to better understanding all those really big ideas and numbers children come across on a regular basis. Author David J. Smith has found clever devices to scale down everything from time lines (the history of Earth compressed into one year), to quantities (all the wealth in the world divided into one...