Dr. Teri Dankovich at Carnegie Mellon University has written a book that not only talks about the importance of clean water, but its very pages can filter and clean murky water. Copies of this wonder book have been given to families in South Africa, Ghana, and Bangladesh to filter water of contaminants and kill 99% of bacteria found in their unclean water. The pages of the book are made of nano-particles of silver or copper that wipe out dangerous bugs as water is filtered through. For more on this life-saving book, click here:: ‘Bug-killing book’ that cleans up 100 liters of murky water passes field trials