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A collaboration of scientists at the Heidelberg Institute for Theoretical Studies (HITS) and in Canada and the US have now discovered that diffuse gas in the universe can absorb luminous gamma-ray emission from black holes, heating it up strongly. This surprising result has important implications for the formation of structures in the universe. BLACK HOLES: http://www.scoop.it/t/science-news?tag=Black%20Hole 
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The old saw that a watched pot never boils may not apply to pots given an ultra-thin layer of aluminum oxide, which researchers have reported can double the heat transfer from a hot surface to a liquid.
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MIT researchers find a way to generate power without the usual mirror arrays.
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Never get stranded with a dead cell phone again. A promising new technology called Power Felt, a thermoelectric device that converts body heat into an electrical current, soon could create enough juice to make another call simply by touching it.
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SYDNEY: Climate change may quadruple the loss of life due to extreme heat in the city, a new Australian study has predicted. Cunrui Huang and colleagues at Queensland University of Technology in Brisbane investigated how temperature changes affect the death rate in Brisbane. The study adopted a ground-breaking way of measuring climate change deaths, which could become standard for similar studies carried out for other cities. "This is something every individual city has to look at," said co-author Adrian Barnett, explaining that cities around the world have unique climate and housing conditions. The results appear in Nature Climate Science today.
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