"Rig your hub and guy wires," old Paul carried on, cheerfully. "Attach your sun-powered ionic drive, set up your air-restorer, spin your vehicle for centrifuge-gravity, and you're ready to move—out of orbit."
They laughed, because getting into space wasn't as easy as they made it sound. The bubbs, one of the basic inventions that made interplanetary travel possible, were, for all their almost vagabondish simplicity, still a concession in lightness and compactness for atmospheric transit, to that first and greatest problem—breaking the terrific initial grip of Earth's gravity from the ground upward, and gaining stable orbital speed. Only a tremendously costly rocket, with a thrust greater than its own weight when fully loaded, could do that. Buying a blastoff passage had to be expensive.
"Figuring, scrounging, counting our pennies, risking our necks," Nelsen chuckled. "And maybe, even if we make it, we'll be just a third-rate group, lost in the crowd that's following the explorers... Just the same, I wish you could plan to go, too, Paul."
"Don't rub it in, kid. But I figure on kicking in a couple of [p. 18] thousand bucks, soon, to help you characters along."
Nelsen felt an embarrassed lift of hope.
"You shouldn't, Paul," he advised. "We've overrun and taken possession of your shop—almost your store, too. You've waived any profit, whenever we've bought anything. That's enough favors."
"My dough, my pleasure... Let's each get one of Reynolds' beers and hotdogs, if any are left..."
Later, when all the others had gone, except Gimp Hines, they uncovered the Archer, which everyone else had tried. Paul got into it, first. Then Nelsen took his turn, sitting as if within an inclosed vault, hearing the gurgle of bubbles passing through the green, almost living fluid of the air-restorer capsule. Chlorophane, like the chlorophyl of green plants, could break up exhaled carbon dioxide, freeing the oxygen for re-breathing. But it was synthetic, far more efficient, and it could use much stronger sunlight as an energy source. Like chlorophyl, too, it produced edible starches and sugars that could be imbibed, mixed with water, through a tube inside the Archer's helmet.
Even with the Archer enclosing him, Nelsen's mind didn't quite reach. He had learned a lot about space, but it remained curiously inconceivable to him. He felt the frost-fringed thrill.
"Now we know—a little," he chortled, after he stood again, just in his usual garb.