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submitted 10 months ago* (last edited 10 months ago) by [email protected] to c/[email protected]

So like really trying to force water around it the water would have no where to go what would happen?

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[-] [email protected] 103 points 10 months ago* (last edited 10 months ago)

I desperately want to know what you were imagining might happen when you asked this question.

[-] [email protected] 52 points 10 months ago

A hovering blobb of liquid, equidistant from each wall, most likely.

[-] [email protected] 63 points 10 months ago

That's basically what you get, but the distance from each wall is about an atom thick.

[-] [email protected] 7 points 10 months ago

Hey, that atom thick distance allows the water to not stick to the coating.

[-] [email protected] 9 points 10 months ago* (last edited 10 months ago)

Not a blobb, an orb

[-] [email protected] 4 points 10 months ago

Like magnets

[-] [email protected] 1 points 10 months ago

Or maybe explosive splashing.

[-] [email protected] 15 points 10 months ago

The long awaited invention of anti-gravity.

[-] [email protected] 3 points 10 months ago

The bucket would be dry.

[-] [email protected] 90 points 10 months ago

Basically, the water would be held inside the bucket in the shape of the bucket without getting the bucket wet, because the hydrophobic coating would prevent the water from touching the bucket, however the water would still touch the hydrophobic coating, it just will not stick to the hydrophobic coating.

[-] [email protected] 83 points 10 months ago

Well the bucket would get very scared.

[-] [email protected] 13 points 10 months ago* (last edited 10 months ago)

hydrophobia is no laughing matter. 😂

[-] [email protected] 7 points 10 months ago

well then, why are you laughing?!

[-] [email protected] 61 points 10 months ago

You ever use a paper cup? That's basically what they are.

[-] [email protected] 24 points 10 months ago

A black hole would open up, don't do it

[-] [email protected] 8 points 10 months ago

I thought that only happened if you put a hydrophobic bucket inside a hydrophobic portable hole.

[-] [email protected] 6 points 10 months ago

Not until you know the Seventh Symbol

[-] [email protected] 3 points 10 months ago
[-] [email protected] 3 points 10 months ago

A black hole having the mass of the sund would have a Schwarzschild radius of circa 3 kilometers.

[-] [email protected] 23 points 10 months ago

Eh nothing interesting. The water would be in the bucket but pool and bead much quicker, instead of spreading and getting the bucket 'wet'. Kind of like a hydrophobic windshield coating.

[-] [email protected] 23 points 10 months ago

The coating just keeps water from 'sticking' to it or from soaking in to cloth etc. it doesn't do anything special aside from that, you'd just have a normal bucket of water in this case

[-] [email protected] 11 points 10 months ago

which would probably pour the water out better than normal bucket due to less droplets still sticking in it.

[-] [email protected] 2 points 10 months ago* (last edited 10 months ago)

Probably yeah. I seem to remember some sort of YouTube science video doing something like this.

[-] [email protected] 18 points 10 months ago* (last edited 10 months ago)

The water sits in it, but only where gravity holds it. There would be a very pronounced meniscus at the top. That is, if you looked closely the water would dip down really far at the edges before it meets the bucket.

It's not that hydrophobic substances can't touch water, it's that the force of surface tension will oppose it. Unless you're an ant, surface tension isn't that impressive vs. most other forces.

Edit: If you have an ant-sized bucket, the water may sit on top of it as a droplet rather than going in.

[-] [email protected] 17 points 10 months ago

Do... you think a coating repels water a foot away like some sort of anti-water magnet...?

[-] [email protected] 5 points 10 months ago

How do you think Jesus walked on water?

[-] [email protected] 14 points 10 months ago

Like, on the inside of the bucket? It'll still hold water like normal.

[-] [email protected] 5 points 10 months ago

However if you put it on the outside of the bucket nothing changes at all and this comment is a pointless thief of your time and attention. Sorry.

[-] [email protected] 10 points 10 months ago

Don't listen to the jeering goons, OP. Keep asking questions. 🤜🤛

[-] [email protected] 8 points 10 months ago

Pretty sure you’d get one big bead of water. Something much more interesting are superfluids.

[-] [email protected] 7 points 10 months ago

What would happen if you lather yourself in soap so you're really slippery and then you sit in a bath?

Actually you'd probably hurt yourself getting into the bath so maybe don't try this.

[-] [email protected] 2 points 10 months ago

I think with a jump and just the right angle of entry you can probably slide down the sloping face ...and probably end up with two broken legs and a tap half-way up your asshole.

Maybe I've been watching too much Looney tunes

[-] [email protected] 1 points 10 months ago

I think some of us admit to doing this as kids.

[-] [email protected] 7 points 10 months ago

You'd have a bucket of water I'm pretty sure

[-] [email protected] 6 points 10 months ago

The water disappears

[-] [email protected] 6 points 10 months ago

Basically the same thing as when you fill a non-stick pan with water. Hydrophobic coatings only repel water in a way so that it doesn't stick to the surface. That's why they use hydrophobic coatings on windshields, so the droplets of water slide easily and quickly.

Granted, the effect is more noticeable with hydrophobic coating than with non-stick coating, but if you were expecting the water to visibly float away from the walls, that won't happen with either. Reality is sometimes disappointing, huh?

[-] [email protected] 5 points 10 months ago

It'll stay empty of course. If make a big enough bucket to stand in and you could go deep sea diving without an airtank.

[-] [email protected] 5 points 10 months ago
[-] [email protected] 4 points 10 months ago

makes me want to spray some in a urinal

[-] [email protected] 3 points 10 months ago

What would happen if you sprayed your body with hydrophobic spray and then went down a slip-n-slide?

[-] [email protected] 4 points 10 months ago

Probably something like that scene in Christmas Vacation where Chevy Chase sprays nonstick on the bottom of his metal disc sled thingy

[-] [email protected] 2 points 10 months ago

I'm sorry that's simply not allowed

[-] [email protected] 2 points 10 months ago

Made me think of the LiquiGlide ketchup video from a few years ago.

Did this stuff ever get used anywhere or just vaporware?

this post was submitted on 31 Jul 2024
72 points (92.9% liked)

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