With great power, comes great responsibility.  Please do try to keep this new bacteria only in the lab.

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Genetic engineers have designed strains of E. coli that can survive only in the presence of a compound that doesn't exist in nature—meaning the bacteria's odds of escaping the lab alive are limited. Dan Mandell, a research fellow in genetics at Harvard Medical School who co-authored a paper about the findings in Nature this week, explains. David Guston, co-director of the Consortium for Science, Policy and Outcomes at Arizona State University, discusses the ethical and safety implications of the work.

Scientists Engineer Bacteria With Genetic 'Kill Switch'

Ryan Rykaczewski describes one of the most massive migrations on the planet, driven by the sun. Image by Tintinnidguy (Own work) [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons 

#ExplainTheSun  - The Largest Migration on The Planet

Once, there was the ordinary incandescent light bulb. It shone brightly, but wasted much of the energy put into it as heat. Then came the compact fluorescent. And as costs have dropped, consumers have increasingly been switching to light-emitting diode (LED) technology for many lighting applications, in an ongoing search for a more efficient bulb. Now, in work published in the journal Nature Nanotechnology, researchers report that nanophotonic devices may be able to breathe new life into old incandescent technology. Marin Soljačić and Ognjen Ilic, two authors of the study, explain how they’ve been able to “recycle” some of the incandescent bulb’s wasted heat and re-emit it as visible light, boosting efficiency.

For the Lowly Incandescent Bulb, a Ray of Hope

Science, technology, and other cool stuff from public radio's Science Friday. It's brain fun, for curious people. From WNYC Studios.

Scientists Engineer Bacteria With Genetic 'Kill Switch'

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