Ever wondered if you could beat a T. Rex in an arm-wrestling match? Why men get hit by lightning more often than women? Or whether you could get rich selling your organs on the black market? This indispensable book from Popular Science magazine answers these questions, and hundreds more. The editors at PopSci asked leading physicists, biologists, and other scientists a whole raft of crazy questions, and received the surprisingly detailed and fascinating answers gathered into this one impossible-put-down volume.