31. In November 1942 the Military Policy Committee approved the construction of a 600-stage gaseous diffusion plant. 32. Next, that undergoes isotope separation through the process of gaseous diffusion , or in a gas centrifuge. 33. Simon's team studied the technology of gaseous diffusion . 34. Ronald Lamb's family has lived and worked for years down the road from the Gaseous Diffusion Plant. 35. The next month it received enhanced ( 5 % ) feed from the K-25 gaseous diffusion plant. 36. To prevent sabotage, the power plant was connected to the gaseous diffusion plant by an underground conduit. 37. Another possibility was gaseous diffusion , which George B . Kistiakowsky suggested at a lunch on May 21, 1940. 38. A British Mission led by Wallace Akers assisted in the development of gaseous diffusion technology in New York. 39. The gaseous diffusion process had been the leading method for enrichment and was used in the Manhattan Project. 40. However, compared to gaseous diffusion plants.