A physicist.[ref]
Marsden, Ernest by Ross Galbreath. Dictionary of New Zealand Biography; Independent biographical identity and professional specialization
Portrait of Ernest Marsden
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Ernest Marsden was a notable British physicist best known for his work in early atomic physics. He was born on March 15, 1889, and is most famously associated with the gold foil experiment conducted with Ernest Rutherford in 1909, which provided significant evidence for the nuclear model of the atom.