View Single Post
  #9  
Old 06-11-2019, 04:36 PM
Chronos's Avatar
Chronos is offline
Charter Member
Moderator
 
Join Date: Jan 2000
Location: The Land of Cleves
Posts: 83,752
Of course the explanation about absorbtion and re-emission isn't really right. Any answer not in the language of quantum electrodynamics won't be really right. But it's about as good an approximation as you're going to get in layman's English.