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A comment on Why medieval Bologna was full of tall towers, and what happened to them. Parent comment

Re:Why medieval Bologna was full of tall towers, and what ha... by throwup238 on Sunday May 26, 2024 @01:26PM (#40483843)
The number of atomic transitions a cesium 133 atom makes when fired across a football field at the speed of sound.
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Re:Why medieval Bologna was full of tall towers, and what ha... by tuatoru on Sunday May 26, 2024 @04:49PM (#40485262)
... in dry air at STP.
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