Nuclear

Fusion was solved for stars in 1939—not for power plants, and not by engineers.

Bethe's 1939 theory of how stars fuse hydrogen waited 81 years for direct confirmation, arriving only in 2020 when a neutrino detector finally caught the CNO cycle operating inside the Sun itself.

Fermi didn’t discover new elements — he discovered how to split atoms, then misread the evidence.

Otto Hahn's puzzling 1938 chemistry, barium from bombarded uranium, was explained within weeks by the exiled Lise Meitner and Otto Frisch as nuclear fission, work for which only Hahn received the 1944 Nobel Prize.

Oppenheimer didn’t build bombs — he built the mathematical scaffolding for quantum chemistry, nuclear physics, and black holes.

The National Ignition Facility's December 2022 shot produced more fusion energy than its laser delivered to the fuel, a real milestone at the target that is roughly a hundredfold short of net energy for the facility itself.