"Can you imagine travelling faster? And then we need not be so long on the journey," said Dr. Sandford. "If we were to go as fast as a cannon ball, it would take us about seven years—not quite so much—to get to the sun."
"How fast does a cannon ball go?"
"Fifty times as fast as a railway train."
"I cannot imagine that either, Dr. Sandford."
"Give it up, Daisy," said the doctor, rising and beginning to put himself in order for travelling.
"Are you going?" said Daisy.
"Not till you have done with me!"
"Dr. Sandford, have you told me all there is to tell about the sun?"
"No."
"Would it take too long this evening?"