National Geographic : 1949 Mar
) lnanLolal munglaplll; ouvclt y 4 High School Students Learn About Atomic Energy at Oak Ridge, Tennessee The exhibit illustrates the gaseous diffusion process for separating U-238 and U-235, principal isotopes of uranium. The device shows separation of simulated uranium hexafluoride molecules across a barrier. Kodachromes by J. Baylor Roberts + Burns Brick Company's Office Interiors in Macon, Georgia, Are Built of Brick Instrument panel in rear shows operating conditions in the plant, whose two machines punch out 30,000 bricks an hour-enough in 30 minutes for a six-story house. Annual output is 60 million bricks.