““It’s easy to see how disgruntled sailors might start to wonder if their rum had been diluted a little too much. They demanded proof that they were getting the rum they were entitled to. There were no hydrometers in those days (a hydrometer is an instrument that measures the density of a liquid as compared to water, thereby measuring alcohol content), so a method was developed using a material ships always had on board: gunpowder. A quantity of gunpowder, mixed with rum, would not ignite if the rum was watered down. It would have to contain about 57 percent alcohol to catch on fire. In the presence of the crew, the ship’s purser would mix the rum and gunpowder and light it on fire, offering “proof” of its potency.””
![“Ships at a distance have every man's wish on board. For some they come in with the tide. For others they sail forever on the horizon, never out of sight, never landing until the Watcher turns his eyes away in resignation, his dreams mocked to death by Time. That is the life of men [and women].” quote by Zora Neale Hurston](https://sms4smile.com/quotes/img-quotes/b4c/zora-neale-hurston-923_death_ships-at-a-distance-have-every-man-s-wis_14724.jpg)
