radioactivity purity
61industrial glass — Introduction solid material that is normally lustrous and transparent in appearance and that shows great durability under exposure to the natural elements. These three properties lustre, transparency, and durability make glass a favoured… …
62Thin Man (nuclear bomb) — Thin Man plutonium gun test casings at Wendover Army Air Field, as part of Project Alberta in the Manhattan Project. In the background, casing designs for Fat Man bombs can be seen as well. The Thin Man (formally, Mark 2) nuclear bomb was a… …
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