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| How evolutionary principles could help save our world Posted: 12 Sep 2014 12:21 PM PDT The age of the Anthropocene -- the scientific name given to our current geologic age -- is dominated by human impacts on our environment. A warming climate. Increased resistance of pathogens and pests. A swelling population. Coping with these modern global challenges requires application of what one might call a more-ancient principle: evolution. |
| Moving silicon atoms in graphene with atomic precision Posted: 12 Sep 2014 08:24 AM PDT In recent years, it has become possible to see directly individual atoms using electron microscopy -- especially in graphene, the one-atom-thick sheet of carbon. Scientists have now shown how an electron beam can move silicon atoms through the graphene lattice without causing damage. The research combines advanced electron microscopy with demanding computer simulations. |
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