From: owner-ammf-digest@smoe.org (alt.music.moxy-fruvous digest) To: ammf-digest@smoe.org Subject: alt.music.moxy-fruvous digest V14 #11750 Reply-To: ammf@fruvous.com Sender: owner-ammf-digest@smoe.org Errors-To: owner-ammf-digest@smoe.org Precedence: bulk alt.music.moxy-fruvous digest Thursday, July 6 2023 Volume 14 : Number 11750 Today's Subjects: ----------------- See if you qualify for a $1,000 credit limit today ["FortivaBenefits" Subject: See if you qualify for a $1,000 credit limit today See if you qualify for a $1,000 credit limit today http://clarisilpro.shop/ht3RUJNVtqX_Z80i5A7AfJ-Tj-A4yWQ1Y_s_hD6AAnWkGdKR5Q http://clarisilpro.shop/RODpCWiKScogQU7Ysk42HaaM30X7VxPAFPJDJH-hjBPe5clBGA Over the next three years, Libby worked on the gaseous diffusion process for uranium enrichment. An atomic bomb required fissile material, and the fissile uranium-235 made up only 0.7 percent of natural uranium. The SAM Laboratories therefore had to find a way of separating kilograms of it from the more abundant uranium-238. Gaseous diffusion worked on the principle that a lighter gas diffuses through a barrier faster than a heavier one at a rate inversely proportional to its molecular weight. But the only known gas containing uranium was the highly corrosive uranium hexafluoride, and a suitable barrier was hard to find. Through 1942, Libby and his team studied different barriers and the means to protect them from corrosion from the uranium hexafluoride. The most promising type was a barrier made of powdered nickel developed by Edward O. Norris of the Jelliff Manufacturing Corporation and Edward Adler from the City College of New York, which became known as the "Norris-Adler" barrier by late 1942. In addition to developing a suitable barrier, the SAM Laboratories also had to assist in the design of a gaseous separation plant, which became known as K-25. Libby helped with the engineers from Kellex to produce a workable design for a pilot plant. Libby conducted a series of tests that indicated that the Norris-Adler barrier would work, and he remained confident that with an all-out effort, the remaining problems with it could be solved. Although doubts remained, construction work began on the K-25 full-scale production plant in September 1943. As 1943 gave way to 1944, many problems remained. Tests began on the machinery at K-25 in April 1944 without a barrier. Attention turned to a new process developed by Kellex. Finally, in July 1944, Kellex barriers began to be installed in K-25. K-25 commenced operation in February 1945, and as cascade after cascade came online, the quality of the product increased. By April 1945, K-25 had attained a 1.1% enrichment. Uranium partially enriched in K-25 was fed into the calutrons at Y-12 to complete the enrichment process. Construction of the upper stages of the K-25 plant was canc ------------------------------ End of alt.music.moxy-fruvous digest V14 #11750 ***********************************************