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Latest Julia Segre Stories

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2008-05-25 09:05:00

The crook of your elbow is not just a plain patch of skin. It is a piece of coveted real estate, a special ecosystem, a bountiful home to no fewer than six tribes of bacteria. Even after you have washed the skin clean, there are still 1 million bacteria in every square centimeter. But these are not bad bacteria. They are what biologists call commensals, creatures that eat at the same table with people to everyone's mutual benefit. Though they were not invited to enjoy board and lodging in...


Word of the Day
cruet
  • A vial or small glass bottle, especially one for holding vinegar, oil, etc.; a caster for liquids.
This word is Middle English in origin, and ultimately comes from the Old French, diminutive of 'crue,' flask.
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