Feeling tired? Even if we aren’t tired, why do we yawn if someone else does? Experts at the University of Nottingham have published research that suggests the human propensity for contagious yawning is triggered automatically by primitive reflexes in the primary motor cortex — an area of the brain responsible for motor function.

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Most modern websites store data in databases, and since database queries are relatively slow, most sites also maintain so-called cache servers, which list the results of common queries for faster access. A data center for a major web service such as Google or Facebook might have as many as 1,000 servers dedicated just to caching.

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As of this morning, 57 USGS streamgages are over National Weather Service flood levels, and water continues to rise at 118 gauges throughout Texas.  

Seventeen USGS field crews are measuring high flood flows and verifying streamgage operations on the Colorado, Brazos, San Jacinto and Trinity River basins. Preliminary data show record high flood levels were measured at 16 locations throughout the greater Houston area. Accessing specific locations has proved challenging due to road closures and many sites being flooded at levels too dangerous to measure at this time.

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A team of scientists has discovered that a 1°C rise in local sea temperature has massive impacts on an Antarctic marine community. These new results are published this week (31 August) in the journal Current Biology, and enable researchers to better understand the biological implications of the future ocean warming predicted by the Intergovernmental Panel on Climate Change (IPCC).

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