Modern · Austria and Sweden
Lise Meitner
1878-1968
Their story
Why Lise Meitner matters
Meitner and Otto Frisch explained how an atomic nucleus can split and release enormous energy.
Lise Meitner worked in Austria and Sweden during the Modern era. Science was becoming a team effort carried out in universities, hospitals, observatories, industry and large research laboratories.
In nuclear physics, ideas become especially powerful when a prediction can be measured or made to work in a real device. Lise Meitner's work joined curiosity with practical problem-solving and opened questions for the next generation.
Key discovery or invention
Explaining nuclear fission.
Lise Meitner's central contribution was explaining nuclear fission.
The key idea linked a physical effect with something that could be predicted, measured or engineered. That bridge between explanation and practical result is why the work became useful beyond the original experiment.
Why it still matters: Later technologies could develop because engineers and scientists had a stronger explanation of the underlying physical effect. Lise Meitner's work is one chapter in that continuing story rather than the final word.
Element 109, meitnerium, was named in her honour.