Cosmos en 3D

Interesting facts and experiments explore the dynamics of a race car engine to teach about air flow and drag, safety equipment and roll cages, the fuel system and horsepower, suspension and track bars, internal combustion, why race cars don't have speedometers, how roof flaps are designed like airplane wings, and more.

En estos tiempos tan convulsos en los que la humanidad se encuentra afectada por una pandemia que va aniquilando gran parte de los habitantes del planeta, el doctor Roberto Gutiérrez Laboy reflexiona cuidadosamente, desde la perspectiva de la bioética, sobre cómo enfrentar situaciones tan trágicas como las que se están viviendo. Su finalidad es que se comprenda que las tragedias humanas son parte consustancial de nuestra existencia radicalmente problemática.

Many people who live in the city do not have space for gardens. But they still want the fresh food, flowers, and herbs that come from a garden. So, they plant gardens in pots or planters. Sometimes they form a team and find an empty lot to plant their gardens in. People use patterns to plan how best to use their space. This is a great way for people to live in the city and have a beautiful garden. What would you plant in your city garden?

Some people are afraid of mice, but these tiny critters are full of interesting facts. Through both English and standard Latin-American Spanish, learn how little mice are taken care of and how some of these itty bitty animals are even kept as pets or used to run tests. From tiny pink pups to wild mice invading your home, these animals will help readers learn definitions and early concepts with the use of full-color pictures and a great picture glossary. Strong picture-text correlation aids in comprehension Reading level supports beginning readers Picture glossary helps develop vocabulary...

¿Sabía que alabar proviene de una voz latina que significa bofetada, o que chándal procede de una expresión francesa que quiere decir vendedor de ajos? Un diccionario diferente que combina lo científico con lo divulgativo e invita más a la lectura que a la mera consulta esporádica. En él se agrupan una serie de palabras cuya evolución hasta nuestra lengua esconde una historia curiosa, peculiar, extraña y la mayoría de las veces desconocida para la mayoría de los hablantes.