Extract from the Text
Summary in Bullet Points
- The narrator connects Claribel’s collapse with a historical safety practice.
- Canaries respond to dangerous air sooner than humans, so the bird becomes an early warning signal.
- A simple memory succeeds because the narrator observes symptoms and makes an inference instead of trusting alarms blindly.
View Answer
Answer: Because Claribel’s collapse and recovery with oxygen remind him that canaries were historically used as early warnings of dangerous mine air.
View Answer
Answer: Good problem-solving combines observation, memory and inference. The narrator does not merely accept that the alarms are silent; he uses evidence from Claribel and human symptoms to question the system.