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Getting Water Out of Your Ear
(fyfluiddynamics.com)
cross-posted from: https://discuss.tchncs.de/post/1312651
TLDR: To remove by shaking one would need accelerations high as 24g, which can damage the ear. A couple drops of vinegar or alcohol in the ear will lower the surface tension and make the fluid easier to remove
I've usually had good success turning that ear towards the ground and repeatedly jumping. At least it gets the water away from my eardrum which is good enough