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Lemonnier researching electrical speed.
UMG23A59_177

Lemonnier researching electrical speed.

German physicist Georg Wilhelm Richmann.
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German physicist Georg Wilhelm Richmann.

Woman scientist in a laboratory ca. between 1909 and 1923
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Woman scientist in a laboratory ca. between 1909 a...

Woman scientist with experiment ca. between 1909 and 1923
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Woman scientist with experiment ca. between 1909 a...

Government scientists conducting tests on electrical current circa 1938.
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Government scientists conducting tests on electric...

The galvanisation of the executed murderer Matthew Clydesdale by Dr
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The galvanisation of the executed murderer Matthew...

Soyuz tm-7, soviet cosmonauts alexander volkov and sergei krikalev (right) conducting an experiment aboard the mir space station, 1988.
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Soyuz tm-7, soviet cosmonauts alexander volkov and...