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TIL less humid air increases atmospheric pressure. Air is mostly nitrogen (78%) and oxygen (21%). Water vapor is less dense than air because hydrogen is lighter, so it displaces heavier gases, reducing air density and lowering pressure when humidity is high

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wLono TIL in Anthem, Arizona, there's a veterans monument where each year on Nov 11th (veterans day) at precisely 11:11am the sun shines on it perfectly to reveal the Great Seal of the United States
W7VQ4 TIL that sandhill cranes have one of the longest fossil histories of any extant bird. The oldest confirmed sandhill crane fossil is 2.5 million years old, while most living species of birds date back to less than 1.8 million years.
QNyV6 TIL singer-songwriter Jewel had a relationship with actor Sean Penn. He sought her out with a phone call to her father's home in Alaska after watching her television debut on "Late Night with Conan O'Brien" in 1995. Jewel's father assumed it was a prank call.
wvOo TIL: George Lucas later sent Mel Brooks a note saying how much he loved Spaceballs and that he “was afraid [he] would bust something from laughing.”
mB5M TIL of Iwao Hakamada Japanese Boxer who was interrogated for 20 days straight with no lawyer present and spent 46 Years On A Death Row for a crime he did not commit.