For a few miles she followed the line hitherto presumably occupied by the coast of Algeria; but no land appeared to the south. The changed positions of the planets rendered them of no avail for purposes of nautical observation, nor could Lieutenant Procope calculate his latitude and longitude by the altitude of the sun, as his reckonings would be useless when applied to charts that had been constructed for the old order of things; but nevertheless, by means of the log, which gave him the rate of progress, and by the compass which indicated the direction in which they were sailing, he was able to form an estimate of his position that was sufficiently free from error for his immediate need.
Happily the recent phenomena had no effect upon the compass; the magnetic needle, which in these regions had pointed about 22 degrees from the north pole, had never deviated in the least--a proof that, although east and west had apparently changed places, north and south continued to retain their normal position as cardinal points. The log and the compass, therefore, were able to be called upon to do the work of the sextant, which had become utterly useless.
On the first morning of the cruise Lieutenant Procope, who, like most Russians, spoke French fluently, was explaining these peculiarities to Captain Servadac; the count was present, and the conversation perpetually recurred, as naturally it would, to the phenomena which remained so inexplicable to them all.
"It is very evident," said the lieutenant, "that ever since the 1st of January the earth has been moving in a new orbit, and from some unknown cause has drawn nearer to the sun."
"No doubt about that," said Servadac; "and I suppose that, having crossed the orbit of Venus, we have a good chance of running into the orbit of Mercury."
"And finish up by a collision with the sun!" added the count.
"There is no fear of that, sir. The earth has undoubtedly entered upon a new orbit, but she is not incurring any probable risk of being precipitated onto the sun."
"Can you satisfy us of that?" asked the count.
"I can, sir. I can give you a proof which I think you will own is conclusive. If, as you suppose, the earth is being drawn on so as to be precipitated against the sun, the great center of attraction of our system, it could only be because the centrifugal and centripetal forces that cause the planets to rotate in their several orbits had been entirely suspended: in that case, indeed, the earth would rush onwards towards the sun, and in sixty-four days and a half the catastrophe you dread would inevitably happen."