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[Partially incorrect, see comments.] Pens in Space (mander.xyz)

submitted 6 days ago* (last edited 6 days ago) by fossilesque@mander.xyz to c/science_memes@mander.xyz

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[-] Carl@hexbear.net 26 points 6 days ago

Plus pressurized pens are useful in more than just zero-g. I used to use one along with a waterproof note pad for note taking in the field. They're also not prohibitively expensive, although the ones from Fisher itself carry a pretty huge brand name markup, other companies sell them for a couple bucks each.

[-] CosmicTurtle0@lemmy.dbzer0.com 8 points 6 days ago

Wait....waterproof notepad?! How does a notepad hold the moisture from the pen? Or is this like a grease marker situation?

[-] Carl@hexbear.net 13 points 6 days ago

idk how it works but it does. I've been using Rite in the Rain for years but there are others too if you search it up.

[-] EpeeGnome@lemm.ee 6 points 6 days ago

Just guessing here but I imagine the ink doesn't contain any water, so an otherwise absorbent material that is treated with a hydrophobic coating would probably work for that.

[-] KillingTimeItself@lemmy.dbzer0.com 5 points 6 days ago* (last edited 6 days ago)

the paper doesnt necessarily need to absorb the ink, the ink just needs to dry on the surface is such a way that it adheres well enough it doesn't rub off, or stay wet.

So really, you want a high adhesion, quick drying ink, which would basically let you write on any surface it'll stick to.