Science: Clear as Air

Scientists have long known that glass consists of about 46% oxygen by weight but it remained for scientific study to explain how it was spread out through the transparent substance. Dr. Alexis Pincus of American Optical Co. last week announced, as a result of new X-ray studies of the atomic structure of glass, that 92% of its volume consists of nothing but oxygen caught in the interstices of a relatively scanty framework made of silicon and other elements.

Still more significant was his new theory of the nature of that framework. When molten glass is allowed to cool slowly enough to crystallize,...

Want the full story?

Subscribe Now


Get TIME the way you want it

  • One Week Digital Pass — $4.99
  • Monthly Pay-As-You-Go DIGITAL ACCESS$2.99
  • One Year ALL ACCESSJust $30!   Best Deal!
    Print Magazine + Digital Edition + Subscriber-only Content on

Learn more about the benefits of being a TIME subscriber

If you are already a subscriber sign up — registration is free!