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Health and Physical Fitness

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Rob Dew and Kurt Nimmo via Prison

In order to make his argument about the safety of fluoride, Mr. Elmore cites a 1943 discovery made by Dr. H. Trendley Dean. According to Dean, 1 ppm (parts per million) of naturally occurring fluoride is an ideal concentration “to prevent cavities wi

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Clay Dillow via PopSci

Taking cues from slime molds, ants, and living biological cells, a team of University of Pittsburgh researchers has designed a system of artificial cells that can communicate with one another and cooperate to carry out tasks. The computer models they