What this exercise ultimately shows is the limitation of small-sample analysis: there have only been 14 different presidents in the last 83 years, which is too small to draw any meaningful inferences.

FORBES: Maybe Tall Democratic Presidents Are Better For Stocks

The drill will produce a powdered sample that can be put in the robot's on-board laboratories for analysis.

BBC: Curiosity Mars rover deploys its rock brush

So, Scout got upgraded from an 8-bit processor to a 32-bit unit based on Micrium, the operation system being used by NASA's Curiosity Rover for sample analysis on Mars.

ENGADGET

And a Home Office analysis of a sample of migrants eligible for settlement in 2011 shows that under current rules those in less-skilled and worse-paid jobs (nurses, care workers, cooks) were more likely to settle at the first opportunity than those in better-paid or graduate-level jobs.

ECONOMIST: Farewell, big society; hello, guest workers on sufferance