"Yes," said Brett. "As our Time-rate became materially slower, the speeding up of all the motions inherent to the planets grew visible. Saturn's rotation on its axis became readily visible through the telescope. And the globe began very slowly shifting sidewise--at nearly right angles to our course--the visual result of the intensification of its orbital movement. . . . You were going to ask a question, Frank, a moment ago?" I had not forgotten it. "You were telling us, Brett, how you stopped your growth at the ten-mile size. Almost immediately, you said, Saturn receded into an invisibility of distance. The entire Solar System vanished into distance. You had been traveling only seven and one-half million miles an hour before changing size. It was the new velocity I wanted to ask about. The whole question of velocity relative to size." "Relative!" Brett exclaimed. "That's the keynote to it, Frank. Two differing viewpoints, always. Keep them both in mind--the viewpoint of earth-size, and the viewpoint of the vehicle-size. I'll try and explain it now. Once clear to you, our whole experience will clarify to your understanding. Conceive, from your external viewpoint of earth, the vehicle out there in Space dropping with a velocity of seven and one-half million miles an hour. That was its maximum, owing to the ether-friction. It started to increase in size. Hence its mass grew--in proportion directly as the cube. As the mass grew greater, the atoms of the ether became of themselves relatively smaller, less ponderable, less capable of exerting their frictional drag. "This should be very clear to you, Frank. In a vacuum, a feather and a bit of lead fall at equal rates. The mass--the weight--has nothing to do with it. But in air--where there is a friction--the heavier object falls faster. The vehicle was like that. Its mass, so enormously increased, gave it a greatly increased maximum velocity. It picked up velocity rapidly with its growth. The formulas involved are intricate--I need only say that after forty-nine minutes of traveling at the ten-mile size, we had again reached maximum. It was about 200 million miles a minute." "A minute!" I exclaimed. "Yes. That is 12,000 million miles an hour, as against seven and one-half million. The vehicle's length, breadth and width had each increased to a thousand times their former size. Its mass was the product of the three--hence one thousand million times greater. "These are all approximate to the actual figures, you understand. Round numbers are less confusing. Our resultant velocity, however, was 200 million miles a minute, at the end of the first hour. We were well beyond the Solar System by then." Frannie asked, "Brett, why didn't Saturn appear to recede until after you had stopped your growth?"