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How Uranium Is Enriched: The Science, Technology, and Global Controls Behind Nuclear Fuel Production Uranium enrichment is one of the most important—and sensitive—industrial processes in the nuclear fuel cycle. It transforms naturally occurring uranium into a form that can sustain the controlled chain reactions required in most nuclear reactors. While uranium is a common element found in rocks and seawater, only a small fraction of it is usable as fuel in typical power reactors. Enrichment increases the proportion of the key isotope, uranium-235, to make nuclear fission more efficient and controllable. This article explains what enrichment is, why it is needed, the main technologies used, and how the process is tightly regulated worldwide. 1. Natural Uranium: Abundant but Not Immediately Useful Naturally occurring uranium consists primarily of two isotopes: • Uranium-238 (U-238): about 99.3% • Uranium-235 (U-235): about 0.7% Only U-235 is readily fissile, meaning it can sustain a contr...

The Man Who Ate Uranium In the long and often peculiar history of science, there are moments when curiosity edges into recklessness, and when the pursuit of knowledge demands a kind of courage that borders on the absurd.  Among these stories is that of a man who quite literally consumed one of the most dangerous substances known to humanity: uranium. At first glance, the idea sounds like the premise of a dark joke or an urban legend.  Uranium is synonymous with nuclear power, radiation, and devastation. It fuels reactors, underpins atomic weapons, and conjures images of glowing green rods in high-security facilities.  Yet, in the early days of nuclear science—when much about radiation remained mysterious—some scientists were willing to use their own bodies as instruments of discovery. The “man who ate uranium” was not a madman, nor a stunt performer seeking notoriety.  He was in fact a scientist operating in a time when safety standards were rudimentary and the biolo...