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TIL stainless steel is not stain free but stains less than other alloys

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e07Ak TIL while Richard Nixon was on a trip to the Soviet Union in 1959, high levels of radiation were detected the room he was staying in. Secret Service purposely argued about the radiation and how to handle it in an area they knew the Soviets had bugged. Three hours later, the radiation disappeared.
Jo5Q TIL of Salty and Roselle, two separate guide dogs who were in the World Trade Centre during 9/11. They were on the 71st and 78th floor of Tower 1 respectively. They each led their owners safely out of the burning tower amidst the chaos, and both owners and dogs survived.
x8o7 TIL Isaac Newton thought he could turn water into gold, and died eating mercury.
eWmL TIL Pennsylvania is spelled “Pensylvania” on the Liberty Bell
YpYKW TIL corn is man made and would not exist without selective breeding.