"But let us suppose so," said Michel.

"It is an impossible supposition," said the practical Barbicane; "unless the impulsive force had failed; but even then its speed would diminish by degrees, and it would not have stopped suddenly."

"Admit that it had struck a body in space."

"What body?"

"Why that enormous meteor which we met."

"Then," said Nicholl, "the projectile would have been broken into a thousand pieces, and we with it."

"More than that," replied Barbicane; "we should have been burnt to death."

"Burnt?" exclaimed Michel, "by Jove! I am sorry it did not happen, 'just to see.'"

"And you would have seen," replied Barbicane. "It is known now that heat is only a modification of motion. When water is warmed—that is to say, when heat is added to it—its particles are set in motion."

"Well," said Michel, "that is an ingenious theory!"