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Darwin Speaks: "How faithlessness stalked me"

An "interview" with Charles Darwin in which he describes how he became a student of nature, his initiation into the theory of evolution, and his religious scruples. It seemed he knew the trouble he was getting into...

February 11, 2009

Want Clean Water? Turn on the Lights

Companies kill deadly bacteria and strip out heavy metals in water using new technologies that range from ultraviolet (UV) light to microbubbles

January 28, 2009 — Larry Greenemeier
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