Tangentially related: Caltech has a cannon on campus (most notable for being stolen by MIT in 2006)[0] that fires twice per quarter, once towards the beginning

Tangentially related: Caltech has a cannon on campus (most notable for being stolen by MIT in 2006)[0] that fires twice per quarter, once towards the beginning and once towards the end. It is loud—you can hear it on the other end of campus[1]. Although to be fair, I don't know what they put in it and/or how the blank's loudness would compare to a modern artillery piece firing an actual projectile.... [0] https://en.wikipedia.org/wiki/Caltech%E2%80%93MIT_rivalry#2006_Fleming_cannon_heist https://en.wikipedia.org/wiki/Caltech%E2%80%93MIT_rivalry#20... [1] (which is, admittedly, pretty small)