Dr. Angstrom was known to his students and many of his colleagues on the faculty as "The Old Goat." Very appropriate, that name. He had the disposition of a goat with dyspepsia, he had the cold blue eyes of a goat, he had the waggling whiskers of a goat. Perhaps it's in memory of Dr. Angstrom that Ivy College has a goat for its mascot now. Dr. Angstrom was even more goatish than usual that day last summer when half a dozen top scientists in the field gathered to see his preview experiment on mat