title_body: What Type of Coffee Pot is Shown in Billy Joel's "We Didn't Start the Fire"?
upvoted_answer: This is a vacuum coffee maker or siphon.
  
  The invention is nearly 200 years old and uses the physical principles of vapor pressure and vacuum. When placed on a heat source, boiling water creates steam and thus pressure in the bottom compartment. Hot water from the lower pot is pushed through a (glass) tube into the upper part, where it meets the ground coffee. After the required brewing time, the pot is removed from the stove and the resulting partial vacuum and the atmospheric pressure push the coffee back into the lower vessel. The grounds are held back by a filter mechanism (various types used).
  Here’s a video, that shows the Bodum type in action, without distracting talk.
  
  A related type of coffee maker is Bialetti’s moka pot, which pushes the water through the grounds by the same principle, but collects it in the upper part - no flow-back mechanism in this case.