Discover's 20 Things You Didn't Know About Everything
How much do you know about . . .
Sex in space
DISCOVER'S 20 Things You Didn't Know About Everything is the first book written by the editors of the award-winning DISCOVER magazine. Based on DISCOVER'S most eagerly awaited monthly column, "20 Things You Didn't Know About," this original book looks at many popular-and sometimes unexpected-topics in science and technology, and reveals quirky, intriguing, and little-known facts.
Whether you're just curious or think you already know everything, this book is guaranteed to expand your mind.