Little known fact (or maybe widely known, but interesting nonetheless) we saw on the history channel: When you slice through an onion, in short, a gas is released. The gas reaches your eyes and reacts with the water that keeps them moist. This produces a mild sulfuric acid, which irritates the eyes. So the brain reacts by telling your tear ducts to produce more water to dilute the irritating acid so the eyes are protected. And this is why your eyes tear up when an onion is cut.
Saturday, April 19, 2008
Oooh, this is another one of those onion things, isn't it? (Name the movie...)
Little known fact (or maybe widely known, but interesting nonetheless) we saw on the history channel: When you slice through an onion, in short, a gas is released. The gas reaches your eyes and reacts with the water that keeps them moist. This produces a mild sulfuric acid, which irritates the eyes. So the brain reacts by telling your tear ducts to produce more water to dilute the irritating acid so the eyes are protected. And this is why your eyes tear up when an onion is cut.
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very cute em.
ReplyDeleteHa ha.... it happens to me too! Next time try freezing your onion first, it help out so much!
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