Skip to main content

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

2,728,405 Views

121,784 Questions Answered

TEDEd Animation

Let’s Begin…

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.

Explain what might have been Thomson’s thought process when he discovered the electron and used his discovery to come up with his ‘chocolate chip cookie’ model of the atom.

Sign in to answer question

About TED-Ed Animations

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

More from Actions and Reactions