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Werner Heisenberg

Werner Heisenberg was a German physicist who lived between 1901-1976. He developed new theories in quantum mechanics about the behavior of electrons which agreed with the results of previous experiments.

Heisenberg is most famous for his "uncertainty principle", which explains the impossibility of knowing exactly where something is and how fast it is moving. However, this principle is only significant for tiny particles such as electrons.

Heisenberg also wrote the plans for the first nuclear reactor in Germany and promoted such peaceful uses of nuclear energy.


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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF