01/30/2024
In the movie Oppenheimer, a fishbowl slowly fills with marbles that represent the purified uranium available for the Chicago chain reaction experiment, the Trinity test, and two bombs.
We have Iowa State University chemist Dr. Harley Wilhelm to thank for those marbles-- and the purified uranium.
Prior to 1942, only a few grams of not-quite-pure uranium were known to exist. They needed tons. Chicago alone wanted 6 tons, but settled for far less for their chain-reaction experiment.
By November of 1944, Dr. Wilhelm's Ames, Iowa, team had produced 653 tons of pure uranium metal.
"Wilhelm's Way" is a fascinating book about Dr. Wilhelm and his astounding accomplishment. This link simply shows to book cover and its author:
https://www.lectures.iastate.edu/lectures/wilhelm%E2%80%99s-way-inspiring-story-isu-chemist-who-saved-manhattan-project