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TIL that theoretically the smallest object in the universe is called a Preon. Inside of an atom is the nucleus, inside that are 3 quarks. And inside a quark is theorized to be something called Preons. They are so small that as of now, they haven't even been physically observed.

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6E9ll if the Sun were 'shut off', Earth's surface temperature would drop by a factor of two about every two months. The current mean temperature of the Earth's surface is about 27 °C / 81 °F. This means in two months the temperature would drop to -123 °C / -190 °F, and -189 °C / -324 °F in four months. So basically except some bacteria seem to be capable of surviving at extremely cold temperatures in space, we humans would die pretty quickly.
9wwop TIL that the American inventor Isaac Newton Lewis—creator of the Lewis Gun used by America and her allies in WWI—turned down more than $1.2 million in royalties for his invention, equivalent to $35.5 million in 2022 terms
rN1E4 TIL sperm oil(whales) was used in automotive transmissions until the 1970s. When they stopped using it, transmission failures rose significantly.
yVGOJ TIL in 1836, when Nikolai Gogol presented his play The Government Inspector, focusing on a corrupt mayor tries to cover up his own corruption and bribe a visitor he mistakes as an inspector, the tsar personally overruled the censors and had it staged as a warning to officials.
QNlgp TIL that by the late 90s, 80% of digital library catalogs ran on the PICK operating system, named after its developer Dick Pick.