“Today’s Sunday, I say—don’t I know?”
“Oh no!—tomorrow’s Sunday.”
“You are all mad—every one of you. I am as positive that yesterday was Sunday as I am that I sit upon this chair.”
Jumping up eagerly. “I see it—I see it all. Papa, this is a judgment upon you, about—about you know what. Let me alone, and I’ll explain it all in a minute. It’s a very simple thing, indeed. Captain Smitherton says that yesterday was Sunday: so it was; he is right. Cousin Bobby, and uncle and I say that today is Sunday: so it is; we are right. Captain Pratt maintains that tomorrow will be Sunday: so it will; he is right, too. The fact is, we are all right, and thus three Sundays have come together in a week .”
After a pause. “By the by, Pratt, Kate has us completely. What fools we two are! Mr. Rumgudgeon, the matter stands thus: the earth, you know, is twenty-four thousand miles in circumference. Now this globe of the earth turns upon its own axis—revolves—spins round—these twenty-four thousand miles of extent, going from west to east, in precisely twenty-four hours. Do you understand, Mr. Rumgudgeon?—”
“To be sure—to be sure—Doctor Dub—”
Drowning his voice. “Well, sir; that is at the rate of one thousand miles per hour. Now, suppose that I sail from this position a thousand miles east. Of course I anticipate the rising of the sun here at London by just one hour. I see the sun rise one hour before you do. Proceeding, in the same direction, yet another thousand miles, I anticipate the rising by two hours—another thousand, and I anticipate it by three hours, and so on, until I go entirely round the globe, and back to this spot, when, having gone twenty-four thousand miles east, I anticipate the rising of the London sun by no less than twenty-four hours; that is to say, I am a day in advance of your time. Understand, eh?”