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A comment on Scientists figured out how to write in water. Parent comment

Re:Scientists figured out how to write in water by iancmceachern on Thursday September 14, 2023 @03:30AM (#37506035)
Pencils also work well, there are pencils specifically designed for it.

https://www.xit404.com/collections/aqua-pencil-solo-packs

It's what scuba folks use.

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