Related Clues:

• Discoverers' shouts
• Pupil reactions
• Finders' shouts
• Reactions to revelations
• "Gotcha!" cries
• "I figured it out!" cries
• Elated exclamations
• Responses to revelations
• Grasping abilities
• Gottchas
• Cries at moments of clarity
• Code breakers' cries
• Discoverer's cries
• Sounds accompanying light bulbs?
• Certain breakthroughs