this post was submitted on 06 Jul 2025
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[–] Hugin@lemmy.world 5 points 6 hours ago (1 children)

I did some robotic submarine stuff in college. One of the techniques for waterproofing was put the electronics in a open at the top box and fill it with oil that was heavier than water. Messy but it worked.

[–] lordbritishbusiness@lemmy.world 4 points 6 hours ago (1 children)

That's absolutely genius. It's like something out of troll science. "We soak it in heavier liquid to keep liquid out". I'm a little awestruck.

It'd probably stand up to pressure when deeper under water better than most other options too.

[–] Hugin@lemmy.world 1 points 2 hours ago

Yeah you didn't have a risk of pressure popping the seal and flooding the electronics. Also if there was a leak in the box you knew about it before you put it in the water.