Miss Gorgers taught physices in a New York school. Lastmonth she explained to one of her classes about sound, and she decided to testthem to see how successful she had been in her explanation. She said to them, “Now I have a brother in Los Angeles. If I was calling him on thephone and at the same time you were 75 feet away, listening to me from acrossthe street, which of you would hear what I said earlier, my brother or you andfor what reason?” Tom at once answered, “Your brother.Because electricity travels faster than sound waves.” “That’s very good,” Miss Gorgers answered; butthen one of the girls raised her hand, and Miss Gorgers said, “Yes, Kate?” “I disagree,”Kate said. “Your brother would hear you earlier becausewhen it’s 11 o’clock here it’s only 8 o’clock in Los Angeles.”