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.

Este es el libro que todos los chicos han estado esperando. (desde los muy jóvenes hasta los más viejos). Descubre todas las formas de probar tu audacia con horas de diversión garantizada, en este libro encontraras: experimentos, juegos divertidos, ideas geniales, consejos y muchas cosas más, ¡Después de leerlo, serás el mejor en todo!

A stinky look at the history of personal hygiene reveals fascinating facts, such as the invention of the toilet, how many times Queen Elizabeth I had a bath, how the first sewers were built, and much more.

Is conversational Spanish turning a little too tricky for you? Do you have no idea on how to order a meal or book a room at a hotel? If your answer to any of the previous questions was ‘Yes’, then this book is for you! If there’s even been something tougher than learning the grammar rules of a new language, it’s finding the way to speak with other people in that tongue. Any student knows this – we can try our best at practicing, but you always want to avoid making embarrassing mistakes or not getting your message through correctly. ‘How do I get out of this situation?’ many...

"Esta delicada historia enfoca la relación entre dos niñas que se encuentran en un campamento veraniego y describe la cálida amistad que se desarrolla entre ambas pese a que una de ellas tiene el síndrome de Down"--P. [4] of cover.