Thoroughly revised and updated for 2010! Here are thousands of the most up-to-date facts on a world of topics -- answers that address almost every subject on earth. Every page is illustrated with photographs, illustrations, maps or charts, and every corner of the book is packed with the newest lists and rankings, the unexpected and the astonishing. Fireflys World of Facts Thoroughly revised and updated for 2010! Here are thousands of the most up-to-date facts on a world of topics -- answers that address almost every subject on earth. Every page is illustrated with photographs, illustrations, maps or charts, and every corner of the book is packed with the newest lists and rankings, the unexpected and the astonishing. Fireflys World of Facts is extensively updated and covers a rich diversity of topics arranged by subject, including the natural world and life sciences; science and technology; world cultures, countries and beliefs; language, literature and education; art, music and entertainment; and much more. The book has been improved to include new sections and better ways of presenting the facts, including: New and updated sections for topics experiencing exciting developments The latest important discoveries Significant revisions to the computers and the Internet sections New sections that keep in time with changing interests, e.g., weird pets, genealogy Technology in 21st-century life Changes in the world of work New forms of energy, reducing your carbon footprint Social networking. Readers of all ages will be fascinated by the abundance of facts in this remarkable and up-to-date reference.