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The lie detector works by measuring physiological signals which could presumably be visualized by drawing a line on paper like a seismograph. It is assumed that when someone is lying, their physiological signatures will be sharper and more stressed. In the comic, the character on the right is hooked up to the lie detector, and apparently must answer "No" to the question of the earthquake. As long as there is no earthquake, then the subject will be telling the truth, and the polygraph signal will be more stable. But if there is really an earthquake happening, then the subject is lying, and so the polygraph will show sharper signals. This mimics the effect of an actual seismograph. It is not clear why the two characters seem to be upset with each other. It is perhaps because the scene mimics a polygraph test where the subject is trying to hide something. Or, more likely, they are simply panicked.
 
The lie detector works by measuring physiological signals which could presumably be visualized by drawing a line on paper like a seismograph. It is assumed that when someone is lying, their physiological signatures will be sharper and more stressed. In the comic, the character on the right is hooked up to the lie detector, and apparently must answer "No" to the question of the earthquake. As long as there is no earthquake, then the subject will be telling the truth, and the polygraph signal will be more stable. But if there is really an earthquake happening, then the subject is lying, and so the polygraph will show sharper signals. This mimics the effect of an actual seismograph. It is not clear why the two characters seem to be upset with each other. It is perhaps because the scene mimics a polygraph test where the subject is trying to hide something. Or, more likely, they are simply panicked.
  
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The title text considers the idea of using a seismograph as a lie detector. If the subject has a nervous twitch, presumably they will twitch in some way when they are telling a lie. This would require them to twitch hard enough to vibrate the ground around them, a vibration that can be picked up on a nearby seismograph.
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The title text considers the idea of using a seismograph as a lie detector. If the subject has a nervous twitch, presumably they will twitch in some way when they are telling a lie. If they are connected to a seismograph somehow, it might pick up the twitch and thus reveal that the subject is lying.
  
 
==Transcript==
 
==Transcript==

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