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The 2,400-year search for the atom - Theresa Doud

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TEDEd Animation

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How do we know what matter is made of? The quest for the atom has been a long one, beginning 2,400 years ago with the work of a Greek philosopher and later continued by a Quaker and a few Nobel Prize-winning scientists. Theresa Doud details the history of atomic theory.

Compare and contrast Dalton’s model, Thomson’s model, Rutherford’s model, and Bohr’s model of the atom.

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TED-Ed Animations feature the words and ideas of educators brought to life by professional animators. Are you an educator or animator interested in creating a TED-Ed Animation? Nominate yourself here »

Meet The Creators

  • Educator Theresa Doud
  • Director Franz Palomares
  • Artist Lisa LaBracio
  • Script Editor Emma Bryce
  • Narrator Addison Anderson

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