Posted: 04 Sep 2011 01:28 AM PDT
a four-year-old boy was eating an apple in the back seat of the car, when he asked : "Daddy, why is my apple turning brown?""Because," his dad explained,"after you ate the skin off, the meat of the apple came into contact with air which caused it to oxidise, thus changing the molecular structure and turning it into a different color." there were a long silence. Then the Son asked softly: "Daddy, are you talking to me?"
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