relativity

"[An] introduction to cosmology, astronomy and astrophysics. Written by one of NASA's leading astronomers and educators, this book provides you with the essential foundations for understanding the science behind the universe we live in"--Provided by publisher.

A rhyming story about the relativity of one thing to another, such as how far away a place is, or the levels of high versus low.

"Qui?en va lento y qui?en va r?apido?" "Who is fast, and who is slow?" A car seems fast compared to a bicycle, but relative to a snail, a bike moves quickly. A charming, bilingual rhyming story that is not about Einstein's theory of relativity, but something just as important: the concept that "everything is relative.".

Explores scientific advancements made through observations, theories, and tests in physics; discussing topics such as nuclear and particle physics, quantum mechanics, relativity, and cosmology. Includes photographs, illustrations, a list of resources, a periodic table of the elements, and an index.