OKAY THIS ARTICLE IS SO COOL

phys.org

Scientists discover that water molecules define the materials around us

For decades, the fields of physics and chemistry have maintained that the atoms and molecules that make up the natural world define the char

I'm going to try to explain this in a comprehensible way, because honestly it's wild to wrap your head around even for me, who has a degree in chemistry. But bear with me.

Okay, so. Solids, right? They are rigid enough to hold their shape, but aside from that they are quite variable. Some solids are hard, others are soft, some are brittle or rubbery or malleable. So what determines these qualities? And what creates the rigid structure that makes a solid a solid? Most people would tell you that it depends on the atoms that make up the solid, and the bonds between those atoms. Rubber is flexible because of the polymers it's made of, steel is strong because of the metallic bonds between its atoms. And this applies to all solids. Or so everybody thought.

A paper published in the journal Nature has discovered that biological materials such as wood, fungi, cotton, hair, and anything else that can respond to the humidity in the environment may be composed of a new class of matter dubbed "hydration solids". That's because the rigidity and solidness of the materials doesn't actually come from the atoms and bonds, but from the water molecules hanging out in between.

So basically, try to imagine a hydration solid as a bunch of balloons taped together to form a giant cube, with the actual balloon part representing the atoms and bonds of the material, and the air filling the balloons as the water in the pores of the solid. What makes this "solid" cube shaped? It's not because of the rubber at all, but the air inside. If you took out all the air from inside the balloons, the structure wouldn't be able to hold its shape.

Ozger Sahin, one of the paper's authors, said

"When we take a walk in the woods, we think of the trees and plants around us as typical solids. This research shows that we should really think of those trees and plants as towers of water holding sugars and proteins in place. It's really water's world."

And the great thing about this discovery (and one of the reasons to support its validity) is that thinking about hydration solids this way makes the math so so so much easier. Before this, if you wanted to calculate how water interacts with organic matter, you would need advanced computer simulations. Now, there are simple equations that you can do in your head. Being able to calculate a material's properties using basic physics principles is a really big deal, because so far we have only been able to do that with gasses (PV=nRT anyone?). Expanding that to a group that encompasses 50-90% of the biological world around us is huge.

More Posts from Badweatherbartender and Others

badweatherbartender

4 months ago

So I had a hysterectomy today (hooray!) and I brought along my stuffed orca, Shamu, as a comfort object. And everyone i interacted with during my pre-op was like "Oh! Who's this?" so I was telling them all about him, how he's been with me since I was 9 and gone on every single vacation and road trip, and they were telling me about their own stuffed buddies (one lady said she still has hers after 40 years!) and all of this while I was signing consent forms and providing a list of the things I'd brought with me, you know, small talk.

So then a nurse comes over and goes "Okay, I've got some stickers I'll put on your things so we know they're yours" and I'm like "OK cool" so she puts a sticker on my coat and stickers on my bags of clothes and then she turns to Shamu and I'm like "oh I guess he gets a sticker too"

But no. She pulls out a hospital bracelet that's an exact copy of mine and slaps it on his tail, like so:

So I Had A Hysterectomy Today (hooray!) And I Brought Along My Stuffed Orca, Shamu, As A Comfort Object.

And i was delighted by this, so I took a picture to send to my friends, who were equally delighted, and were cracking me up with their reactions (like so:)

Anyway, they take me back and put me under, and when I awake groggily a few hours later it takes me a minute to get my bearings, so I don't notice Shamu at first. But then I realize he's tucked up next to me in the gurney, so I grab him, and my hand touches gauze.

And I'm like "huh?" so I look at him and I realize

They gave my fucking orca a hysterectomy

122K notes View Post

badweatherbartender

6 months ago

gotta love matthew mercer

6K notes View Post

badweatherbartender

1 month ago

I love animals that are, like, the opposite of cryptids: we know for a fact they exist and have a clear idea of what they look like because we have photographs and individual specimens, but we haven’t the faintest idea where they’re coming from - they just keep showing up out of nowhere, and the locations of their actual population centres are a complete mystery.

85K notes View Post

badweatherbartender

1 month ago

haven't kept up w/ pokemon but i'm assuming there's a whale type that uses its blowhole to shoot a beam attack of some type, yes? surely?

8K notes View Post

badweatherbartender

6 months ago

live laugh love? nah, bite scream growl

2K notes View Post

badweatherbartender

5 months ago

Whimsy is a survival skill stop training it out of your kids!!! How are they gonna make it when shit gets rough???

5K notes View Post

badweatherbartender

5 months ago

what if there was a show where every character was gay and you had the token straight guy character who acted really stereotypical and was into cars beers and women and everyone was like OH STRAIGHT LARRY YOU’RE SO FUNNY AND STRAIGHT

320K notes View Post

badweatherbartender

5 months ago

shoutout to the woman from my high school martial arts class who liked to get me in joint locks and then joke about how I was easy to catch. you cannot comprehend how psychosexually formative that was for me

108K notes View Post

badweatherbartender

5 months ago

yeah my isekai adventure was going pretty well until I accidentally called the cleric 'healslut' and now he won't stop asking what it means

8K notes View Post

badweatherbartender

5 months ago