"Also physical if it is taken in too large doses," grinned Steve. "The human anatomy can accept velocity without limit--well, up to the point where the ultimate velocity is reached. We've gone a goodly hunk of stuff over the speed of light." "That's questionable." "We came over from Terra in a lot less time than light. That'll be arriving nine years from now." "Uh-huh. But don't forget we wrapped ourselves in a space-warp and ran the space-warp. I think that we can safely assume that the warp is another space and that we were not traveling better than the speed of light with respect to our own space." "Whoof! What a theory! Drag that one past again, slow enough so I can climb aboard." "You got it," laughed McBride. "And if it smells, you fling out a better one for us to shoot holes in." "O.K. But to get back to velocity, the human anatomy can stand velocity without limit. Period. Argue if you like, Mac, but that's my statement. No one has ever been able to prove that velocity alone is harmful to man, beast, bird, or fish!" "I'm as silent as the tomb." "Acceleration can be adapted to--in meagre doses. A man can stand up under 4-G. On his tummy, lying down, 8- or 9-G isn't too hard on him. Dunk him up to the breathing-vents in a good grade of oxidized hydrogen and 15-G is possible without too much harm." "Yes. O Learned Scholar." "But, students," said Hammond standing up and taking a bow. He was interrupted by the resumption of the super drive which, being set at ninety feet per second per second apparent instead of eleven feet, caught him off balance and almost dropped him on the end of his nose. "What I was saying," laughed McBride, "was the effect that rates of change of acceleration have upon the anatomy." "As I demonstrated," grinned Hammond from the floor, "it is changes in acceleration that cause havoc. It causes jerks--" "To sit on the floor," chuckled McBride. "Get up. Stop playing on the floor, Steve, and take a squint at this curve. Plotting an exponential factor for the ordinates of the graph, using Telfu for the center, we find a locus of equal power-soak-up out here--which I estimate to be a little more than two hundred thousand miles!" "Ah, the wonders of analyst," said Hammond. "With a defunct drive and a wild idea, Jawn McBride hauls a satellite out of the sky and plants it--Here!" "What do you think?" "Who am I to argue with people who understand the mysteries of A to the Xth power equals zero, divided by the date of the month times the ace of spades, equals eleven o'clock. All joking aside, Mac, it looks right to my uninitiated mind." "Does, hey?" "Sure. That means that said moonlet--I say moonlet because our pix show that Telfu hasn't anything worthy of the name of a full, honest moon--must be high in cupralum." "Sort of hard to believe."