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Sperm whale oil lubrication

Sperm whale oil lubrication
In the 1800s, sperm whale oil was the world's finest lubricant for precision machinery, lighthouses, and watches. It remained liquid in extreme cold and didn't gum up like plant oils, making it invaluable before petroleum. The whaling industry boomed largely due to this lubrication demand, not just lamp oil. Synthetic alternatives finally replaced it in the 1970s when sperm whales became protected.
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