Russell
Step No. 4. "According to parity, as they spun half of them should have emitted their electrons from the "north" end of the magnetic field and the other half toward the "south." Actually far more electrons came out of the "south" end of the nuclei. By repeating the test under varying conditions, it was verified that cobalt nuclei emit electrons from one particular end. This shows that one end of the nucleus is different from the other, something never known before." ("Life") [Atomic Suicide, page 274]

"At the right of these two spinning masses a mirror has been erected to show that if these two masses were reflected in the mirrors of Nature, such as radar, the spinning would be reversed. Upon this evidence, and similar evidence containing the same fault, a great conclusion of science is now added which upsets the old concept of parity which allowed for no distinction as left and right hand turnings." [Atomic Suicide, page 295]

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Parity was once a cherished symmetry of physics. But then, in 1957, the Chinese American physicist Chien-Shiung Wu’s nuclear decay experiments revealed that our universe indeed has a slight handedness to it: Subatomic particles involved in the weak nuclear force, which causes nuclear decay, are always magnetically oriented in the opposite direction from the one they move in, so that they spiral like the threads of a left-handed screw. The mirror-image particles — the ones like right-handed screws — don’t feel the weak force. https://www.quantamagazine.org/asymmetry-detected-in-the-distribution-of-galaxies-20221205/