1938
Energy
Germany and Sweden
Nuclear fission
Hahn and Meitner split the uranium nucleus and explain the energy release.
Why it mattered
Both civilian nuclear power and the atomic bomb.
Modern Era
1938
2 recorded milestones at this point in the record.
1938
Science
Sweden
Lise Meitner explains fission
Meitner and Frisch supplied the physical explanation of the split uranium nucleus.
Why it mattered
The theoretical insight behind reactors and bombs.
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