In many areas of human activity we measure a host of factors, materials, and achievements against a standard of perfection. Chemical substances, foodstuffs, alloys, and other man-made compounds must meet specifications of noncontamination gauged against a scale that makes provision, theoretically at least, for 100 percent purity.
Log in to read this article
Not a subscriber to JSH-Online? Subscribe today and receive online access to The Christian Science Journal, Sentinel, and Herald including digital editions of the print periodicals, Web original articles, blogs, and podcasts, over 30,000 minutes of Sentinel Radio and audio chats, searchable archive going back to 1883! Learn More.