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A simple answer you can explain to your friends.

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n5RG TIL there’s a giant underground cavern in Japan filled with distilled water and light sensors, used to detect subatomic particles called neutrinos.
PwxL TIL James Henry Hammond defender of slavery, former Governor, Congressman and Senator of South Carolina. Abused four of his nieces, took a slave as a mistress and later replaced her with their daughter, also a slave and had children with her.
awPeL TIL that when filming Zulu (1964) in South Africa, when the authorities warned the British crew that interracial sex was punishable by whipping, the producer responded by asking "if he could have the lashes while doing it".
mLro TIL the on-line cheating website, AshleyMadison.com, was named after the two most popular names for baby girls in 2002, the year it was founded.
NX6EQ TIL America's GDP was smaller than Europe's until 2011. Now there's a huge gap and it keeps widening