It’s entirely possible that back in the ’60s when sound designers were looking for something to record to use as a laser beam sound, they ended up recording the sound of some ice cracking.
I read an interview a while back with the sound designer on the movie *Miles Ahead* (okay movie; great sound design) where he talked about the difficulties that arise when you try to make things sound “authentic”. He looked for some old ’70s tape decks to record sound effects for scenes with Miles in the studio, but when he found them they sounded so much like a sci-fi battle scene (“probably because the sounds in Battlestar Galactica *were* tape decks”) that using them in the movie would have ruined the atmosphere.
Well the reason the ice cracks is to relieve the pressure under the ice. The laser sounds come from the long cracks in the ice causing a certain vibration to continue carrying on through the un-cracked ice around it. If the ice doesn’t do these small cracks throughout the day, the pressure builds up and eventually causes an ice heave which is a massive crack that can cause like 7 foot mountains of ice across the lake
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