Astronomy Cast Ep. 335 - Photoelectric Effect - HD
Channel: astrospherevids
Date: 2014-02-22

This video is sponsored by XE.com
 and Swinburne Astronomy Online (http://astronomy.swin.edu.au/sao/)

Streamed live on Feb 17, 2014
Pop quiz. How did Einstein win his Nobel prize? Was it for relativity? Nope, Einstein won the Nobel Prize in 1921 for the discovery of the photoelectric effect; how electrons are emitted from atoms when they absorb photons of light. But what is it? Let's find out.
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Image courtesy Stefan-Xp.