The Cosmic Computer

Conn had known they'd never believe him, and so he had a trick or two up his space-trained sleeve that might outwit even their fabled Cosmic Computer ... if they dared accept his challenge. THE COSMIC COMPUTER (Original Title: Junkyard Planet) H. Left in ignorance of the future, people would go on trying to make do with what they had. Finally, the whole top of the hundred-foot collapsium-covered structure was uncovered, and the excavation had been leveled out wide enough to accommodate all the massive paraphernalia of the collapsium-cutter.