› added 11 months ago

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Today I learned that if you collapse an underwater bubble with a sound wave, light is produced, and the mechanism has not been figured out.

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8e1gV TIL the federal chemical weapons ban was used against a woman who tried to poison her neighbor due to an affair and the case went to the US Supreme Court in "Bond v. United States"
gM8XA TIL: According to Customs and Courtesies of the United States Marine Corps, it is inappropriate to salute "when within sight of the enemy"
4k0EJ TIL of Alex Stepney, an English soccer goalkeeper so got so angry at his own team-mates, he literally dislocated his jaw screaming at them.
9YMJ7 TIL Concrete never stops curing. It will literally take forever to completely set. Also, cracking is a natural occurrence in concrete, so don't panic if you see a crack in your sidewalk.
yQDA8 TIL Glaucoma is almost always caused by too much pressure inside one or both eyes. People don’t typically experience symptoms until the optic nerve has already been damaged and glaucoma usually occurs later in life, but it can happen at any age