In the right circumstances these channels will allow the passage of sodium ions (the liquid to be investigated must have these added in the form of sodium chloride, or common salt, if they are not present naturally).

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The list includes several vitamins and inorganic minerals as common as salt and as rare as selenium or iodine.

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High-powered people with famous names let sunburned shoulders and salt-curled hair be common denominators.

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Common responses include handing out vitamin pills and fortifying common foods with micronutrients (such as putting iodine in salt).

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New York, Atlanta and Salt Lake City are poster cities for a phenomenon common to cities in industrialized nations: They create their own weather.

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But Tim and I share a certain skepticism in common, so maybe take my naysaying with a grain or two of sea salt.

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Tapioca stands are common, as are those selling corn on the cob, coated in melted butter and sprinkled with salt.

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