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In December 1942, Enrico Fermi's team pulled the cadmium control rods from a stack of graphite bricks and uranium slugs and watched the world's first self-sustaining nuclear chain reaction hold steady for 28 minutes
https://nuclearpowerdaily.com/np-in-december-1942-beneath-the-abandoned-squash-court-under-chicagos-stagg-field-enrico-fermis-team-pulled-the-cadmium-control-rods-from-a-stack-of-graphite-bricks-and-uranium-slugs-and-watched-the-w/
t 3:25 p.m. on December 2, 1942: in a converted squash court beneath the west stands of Stagg Field, physicist George Weil pulled a cadmium-plated control rod out of a lattice of graphite bricks and uranium slugs, and for 28 minutes the pile behind him ran as the first self-sustaining nuclear chain reaction in history. There was no flash. No bang. Just the quickening click of a boron trifluoride counter and 49 people standing very still in a cold room in Hyde Park.
THE PILE PRODUCED ABOUT HALF A WATT OF POWER. LESS THAN A FLASHLIGHT BULB. IT WAS ENOUGH TO CHANGE THE CENTURY.
https://nuclearpowerdaily.com/np-in-december-1942-beneath-the-abandoned-squash-court-under-chicagos-stagg-field-enrico-fermis-team-pulled-the-cadmium-control-rods-from-a-stack-of-graphite-bricks-and-uranium-slugs-and-watched-the-w/
t 3:25 p.m. on December 2, 1942: in a converted squash court beneath the west stands of Stagg Field, physicist George Weil pulled a cadmium-plated control rod out of a lattice of graphite bricks and uranium slugs, and for 28 minutes the pile behind him ran as the first self-sustaining nuclear chain reaction in history. There was no flash. No bang. Just the quickening click of a boron trifluoride counter and 49 people standing very still in a cold room in Hyde Park.
THE PILE PRODUCED ABOUT HALF A WATT OF POWER. LESS THAN A FLASHLIGHT BULB. IT WAS ENOUGH TO CHANGE THE CENTURY.
