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Toilets Could Sink A Submarine
- German U-boat toilets were complex and dangerous, requiring specially trained crew to flush them during WWII. A captain's mistake flooding U-106 led to chlorine gas, surfacing, and capture or death of the crew.
Hammock Sails Saved A Stranded Sub
- When the R14 submarine lost power off Hawaii in 1921, the crew fashioned sails from hammocks and sheets to reach shore. Their improvised sailing reached the coastline in about 64 hours at roughly one mile per hour.
Mouth Shapes, Not Magic, In Bell's Experiments
- Alexander Graham Bell trained sounds and tried to shape a dog's vocalisations by manipulating mouth shapes and rewards. Bell never succeeded in getting the dog to speak words unaided despite the party trick results.