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TIL that aluminium weighs more than concrete per volume (1m3)

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N9BP TIL that if our solar system out to Neptune were the size of a US quarter, the Milky Way would be approximately the size of the continental United States.
woVZ6 TIL Jack Benny's last staring role in a film was in The Horn Blows at Midnight, which was a box office bomb. The film would go on to gain a new life as a punchline on The Jack Benny Program where it was the butt of jokes for over 20 years.
njgo TIL There is a 5000 year old, still undeciphered, language with over 1200 symbols.
epB9k TIL about a phenomenon in mines called rock burst. Rock bursts occur when mining tunnels alter the pressure placed on nearby rocks which can cause the rocks to explode. Miners are killed every year by rock bursts.
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