Treasured Minerals is a coffee table book that features the story of Russ Behnke's lifelong interest in minerals and his search for the most precious and beautiful specimens. The hundreds of full-color illustrations serve as a guide to what makes a mineral specimen desirable and worth collecting. FREE, and ready for download now!
Updated: Humans and Their Universes; or Science Out of the Straitjacket: Rethinking General Relativity, E=mc2 … and String Theory. I saw a video (“Hidden Dimensions: Exploring Hyperspace” - http://www.worldsciencefestival.com/hidden-dimensions) in which it was stated that mathematicians are free to imagine anything, while physicists work in a very different environment constrained by...
Learn about amazing discoveries decoded from ancient Indian texts that revealed a whole new way of simplified mental math strategies. FREE, and ready for download now!