A British bus company uses sheep urine to reduce city smog. A chemical in the urine converts part of the fuel exhaust into nonpolluting nitrogen and steam.

A pig's orgasm lasts 30 minutes.

The world's largest book, "Bhutan: A Visual Odyssey" is in a Chicago public library. The book measures 5 feet tall by 7 feet wide when open. It weighs 133 pounds.

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