Everyday Science: How Long It Takes for the Last Drops of Oil to Flow Out of the Bottle Has Been Studied

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It makes sense to squeeze the last drop of milk into your coffee and the last drops of precious olive oil into your salad, so we linger in the kitchen, holding bottles or cartons at an awkward angle, waiting and observing for as long as we can. How long should we wait? Two physicists from Brown University in Providence, Rhode Island, USA, set out to find out.