BETTER WORLD BOOKS REACHES 250 MILLION BOOK MILESTONE
Better World Books has reused or recycled 250 million books. In 2002, […]
Hello, I'm an eBook!
ATTENTION: This item is an eBook. It can be read on iOS, Android, MAC and PC's with a supported eReader. It is not a physical book. eBooks are available via download immediately after you've checked out.
Shipped from other seller
Converts one physical book into a digital version.
eDelivery converts your used book order into a digital version readable on most devices.
Ships directly from Better World Books
Second City Books
One Stop Shop Bookstore
The twentieth century was astonishing in all regards, shaking the foundations of practically every aspect of human life and thought, physics not least of all. Beginning with the publication of Albert Einstein's theory of relativity, through the wild revolution of quantum mechanics, and up until the physics of the modern day (including the astonishing revelation, in 1998, that the Universe is not only expanding, but doing so at an ever-quickening pace), much of what physicists have seen in our Universe suggests that much of our Universe is unseen--that we live in a dark cosmos.
Everyone knows that there are things no one can see--the air you're breathing, for example, or, to be more exotic, a black hole. But what everyone does not know is that what we can see--a book, a cat, or our planet--makes up only 5 percent of the Universe. The rest--fully 95 percent--is totally invisible to us; its presence discernible only by the weak effects it has on visible matter around it.
This invisible stuff comes in two varieties--dark matter and dark energy. One holds the Universe together, while the other tears it apart. What these forces really are has been a mystery for as long as anyone has suspected they were there, but the latest discoveries of experimental physics have brought us closer to that knowledge. Particle physicist Dan Hooper takes his readers, with wit, grace, and a keen knack for explaining the toughest ideas science has to offer, on a quest few would have ever expected: to discover what makes up our dark cosmos.
Our best deal on used books 3 for $10 and just $3 each additional book. Shop and Save
Gift Certificate = Happy Friend + Books donated to families in need. Make Someone Happy »
We match every book you purchase with a book donation. Learn more »
Sign up now to get news, sales and special promotions!
© Better World Books (BetterWorldBooks.com)