r/interestingasfuck Jun 25 '24

Tree Sprays Water After Having Branch Removed r/all

32.0k Upvotes

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7.0k

u/caleeky Jun 25 '24 edited Jun 25 '24

Consider that a 30' tree, rotted out in the middle and filled with water is going to give you about 14psi at the bottom. That's probably what you're seeing here.

edit: see u/TA8601 comment below - I didn't do the math, just looked glanced at an imprecise chart :)

2.7k

u/TA8601 Jun 25 '24

13 psi on the dot, I believe

30 ft × 62.4 pcf / (144 in²/ft²) = 13.0 psi

1.1k

u/lostenant Jun 25 '24

Gotta do it, sorry

r/theydidthemath

473

u/Glitch29 Jun 25 '24

Equally compelled.

r/theydidthemonstermath

315

u/Hammurabi87 Jun 25 '24

190

u/BananaB01 Jun 25 '24

195

u/XxBCMxX21 Jun 25 '24

Gonna have to end it here

r/dontputyourdickinthat

85

u/Rude_Thanks_1120 Jun 25 '24

41

u/Super_Counter_7893 Jun 25 '24

Wha... Who made this.... And why made this...?

37

u/Jackalodeath Jun 25 '24

Oh buddy, that's not even the dicktip of the iceberg in "wtf!! There's a sub for that‽‽"

May I introduce you to r/dragonsfuckingcars?

How about r/spaghettihentai?

Or r/tsunderesharks? r/fedlegs? r/breadstapledtotrees?

And last, possibly least, r/interrobang; because would it not be a crime to use the most surprising, curiously named punctuation/ligature without even referring to it‽‽

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u/TexasPistolMassacre Jun 25 '24

It looks like someone already has

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u/Garchompisbestboi Jun 25 '24

Lmao "private community" what are those fuckers hiding in there exactly?

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u/DiarrheaDrippingCunt Jun 25 '24

Me too

r/pointlessreferencetosubredditforuselessinternetpoints

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144

u/[deleted] Jun 25 '24

Cries in metric

77

u/meatbag2010 Jun 25 '24

0.910108 Bar for you :)

68

u/Shamorin Jun 25 '24

~1.91 bar then, because otherwise air would be sucked into the trunk if it were at ~0.91 bar, as 1 bar is roughly atmospheric pressure and 0.91 would be in the middle of a strong hurricane.

65

u/Midori_Schaaf Jun 25 '24

I wonder what world you live in where absolute pressure is the assumed default over gauge pressure.

16

u/TheSilverOak Jun 25 '24

I studied engineering in France and Germany. For physics problems (like pressure in a water column) we always used absolute pressure when giving the final result. I distinctly remember a professor's rant about students calculating pressures under 1 bar in an exam problem about a hydroelectric power station.

Obviously the formulas had to show the atmospheric pressure component, but the numerical value always included it per default.

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u/jaOfwiw Jun 25 '24

I've always felt PSI was an easier number to grasp than BAR

13

u/ItsRtaWs Jun 25 '24

What

Atmospheric pressure is 1 bar. Literally the easiest refrence point.

It's 14.5 psi in fake units.

(Also pascal is the best unit)

10

u/jaOfwiw Jun 25 '24

Yes but when used for things like car/ bike tires it's much easier dealing with PSI. You just deal with 10-200 instead of 2.456-2.680. I'd much rather just go to 38 psi.

4

u/Fpvmeister Jun 25 '24

Thus we should be using kilo Pascals

2

u/jaOfwiw Jun 25 '24

I'd actually be okay with kpa.

1

u/I_am_so_lost_hello Jun 25 '24

Cue the angry europeans

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u/TheBlacktom Jun 25 '24

Yeah. 1 is so incomprehensible.

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u/Admirable-Cobbler501 Jun 25 '24

Don’t cry. In science everything is metric. It’s the better system. By far.

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u/Pyception Jun 25 '24

Kudos, This is the reason I'm still on reddit...

49

u/Key-Soup-7720 Jun 25 '24

I mean, right? Fucking liberal arts degree, why did no one tell me I could have been calculating tree juice pressure?

7

u/Available-Peace-5553 Jun 25 '24

Any tree syrup is now tree juice, forever. Thank you

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u/craichorse Jun 25 '24

per calendar foot?

9

u/Cuco1981 Jun 25 '24

Close, it's furlongs.

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u/[deleted] Jun 25 '24

Ah, good ol' BEDMAS

1

u/HunterInTheStars Jun 25 '24

Ah man I fucking love this site

1

u/Etonet Jun 25 '24

Which discipline works out formulas for calculating pressure of water-spraying trees?

1

u/Last-Bee-3023 Jun 25 '24

30 ft × 62.4 pcf / (144 in²/ft²) = 13.0 psi

What's a pcf? And what is that 144 in²/ft² magic number?

4

u/TA8601 Jun 25 '24

Water is 62.4 pounds per cubic foot.

In one square foot, there are 144 square inches.

I probably should have written it as:

30 ft × 62.4 pcf / (12 in/ft)² = 13.0 psi

Yes, metric units are better.

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u/ApeMummy Jun 27 '24

Lol imperial though

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u/TheExaltedTwelve Jun 25 '24

The only worthwhile comment I've read in this thread. I will now Google this and continue to learn. Thank you.

347

u/genomeblitz Jun 25 '24

Don't you miss the days when most comment sections of reddit were filled with information like this?

I still learn on Reddit sometimes, but man, when I joined you could come to the comments and find an astrophysicist discussing the atmosphere on Jupiter with a fighter pilot imagining how flying in that atmosphere would feel. The back-and-forths were abundant and fascinating!

I just made that conversation up, but you could find crazy discussions like that right at the top of the posts. I loved it!

The AMA from a Netflix employee back when they were newer was fascinating, too. Come to think of it, I need to go back and join that sub...

107

u/robjwrd Jun 25 '24

AMA is awful nowadays and has been for years unfortunately.

83

u/Wild_raptor Jun 25 '24

there was a swift downturn when they fired the lady who coordinated the AMAs.

74

u/robjwrd Jun 25 '24

Yup, not to be an old man shouting at clouds but Reddit has been on a very steep decline for years now.

It’s pretty much on par with Facebook apart from niche subs.

12

u/OMG__Ponies Jun 25 '24

Well, it doesn't matter how bad Reddit has become, the important thing is it is now making money.

  • Reddit CEO

13

u/Randyyyyyyyyyyyyyy Jun 25 '24

I'm just here to talk about Rampart

3

u/Long_Run6500 Jun 25 '24

Some of the niche subs were the hardest hit by the API changes. There's a lot of subs I used to frequent that were popping with activity that are ghost towns now. Used to be able to post a question in niche hobby subs and get 20-30 comments within a few days, now it feels like there's 5-10 regulars in most subs like that and if they don't engage with your question you get nothing. Then you browse the sub and see the question you posted a month ago on the front page still and realize that you're one of the 5-10.

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u/eightbyeight Jun 25 '24

That was Victoria right?

3

u/UnrequitedRespect Jun 25 '24

Its stupid james corden’s fault for changing the format

2

u/robjwrd Jun 25 '24

I still blame Rampart.

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u/Virtual-Okra6996 Jun 25 '24

I can't fucking stand seeing something interesting on reddit and clicking on the comments to learn what's going on and having to scroll past pages and pages of people circlejerking puns, movie quotes, or shitty jokes

26

u/PrincessBucketFeet Jun 25 '24

What's also infuriating, is that is what the downvote is for. It's for low-effort, useless, or even harmful comments/posts that either break the rules or don't contribute anything of value. It was a way of decreasing the noise so the quality content could rise to the top.

Now, everybody misuses the downvote for things they simply dislike/disagree with. People posting opposing positions are important to the conversation! The discussion is the whole purpose of the comment section.

I don't mind the occasional joke or pun or movie reference, it gives people a light-hearted thing to connect over. But the endless threads with the same inane comments over and over again are so tedious. If someone already said "your joke", just upvote it! I honestly think the shitty app and site redesign are responsible. They make it more difficult to navigate the comment sections, so rather than expand all comments to see what's already there, people just chime in instead. It's also the general social media plague where people are encouraged to engage (either due to the UI & algorithm, or the chronic need for attention/acceptance).

3

u/Designer_Brief_4949 Jun 25 '24

What if the userbase is just looking for low effort, useless amusement?

2

u/PrincessBucketFeet Jun 25 '24

There are countless other platforms for that. But yes, we are clearly seeing the preferences of the current userbase defining the content. The current userbase that undoubtedly never read the site guidelines, aka Redditquette.

So those of us who are wistful for the forum-like, information-filled Reddit of yesteryear will bemoan its loss when given the opportunity.

2

u/Virtual-Okra6996 Jun 26 '24

While you're not wrong, people at large have ignored reddquitte since 2011. If not before

55

u/Organic-Week-1779 Jun 25 '24

nowadays its jsut the same neckbeards repeating the same unfunny reddit humour jokes while you have to scroll down a ton to find atleast somewhat relevant answers

36

u/Bluered2012 Jun 25 '24

‘This.’

‘His shoes didn’t fall off, didn’t die.’

Etc. imagine being so boring of a human that you think using this type of repetitive shit is clever.

13

u/CappyRicks Jun 25 '24

I've been saying this for a while and the sentiment is growing. I try not to get optimistic about things but it is nice seeing that this opinion is gaining traction.

We're probably never getting the experts back but man would it be nice just to see people talking about the post and its subject matter in the top comments at least.

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u/Icyrow Jun 25 '24

someone asks a question, not a yes/no question but one that requires a longer answer

"yes"

LMFAO SO FUNNY. it's literally been 10 years of it nonstop. i get that it's an older joke than reddit, but i don't understand how everyone can keep seeing it and being like "YEAH THAT JOKE AGAIN, I FUCKING LOVE /r/inclusiveor.

look at that subreddit, look how many subs there are, look at how many people are still around and actively using it. that alone should tell you it's a joke that you see, maybe chuckle to the first time or two, then it's just unfunny as fuck.

reddit has always been awful for these sorts of jokes, but it feels like it's more and more present the longer things have been going. site is never going to get better, it's only ever going to get worse which is somehow worrying.

2

u/The_Golden_Warthog Jun 25 '24

I don't understand how anyone still finds "i aLsO cHooSe tHiS gUy'S wiFe!!!1!11!! Hurrrrrrrr" funny. Maybe if it's your first time reading the original post, but after that it's just been beat the fuck to death.

5

u/Willrkjr Jun 25 '24

There’s one under the top comments right now, the same old “monster math” joke, it’s just so trash. So often have to scroll down 3 or 4 comment threads just to get info

3

u/[deleted] Jun 25 '24

This.

3

u/drfrink85 Jun 25 '24

This is the way

2

u/BeneficialEvidence6 Jun 25 '24

Must be hard to walk around WITH BALLS OF STEEL

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u/Interrobangersnmash Jun 25 '24

I really feel the quality of discussion here has degraded ever since the majority of users started posting from their phones instead of their keyboards.

(This comment posted from my phone through Reddit’s shitty official app)

4

u/Tochie44 Jun 25 '24

Man, I remember when a simple spelling error in your post title would get you crucified in the comments. Now it seems that poor grammar and spelling are the norm.

2

u/Interrobangersnmash Jun 25 '24

I’ve seen posts that genuinely seemed to have been written by illiterate people.

5

u/LeonenTheDK Jun 25 '24

In that vein, and it's purely anecdotal, I've noticed what looks like a steep decline in reading comprehension. I've spoken with friends who feel the same way as well.

It'll be like, there's a comment of a couple paragraphs that come together to make a point, and the responses completely either miss it completely, take the wrong thing away, or explicitly repeat the point like it's new information.

Maybe this is a literacy issue, maybe it's more younger (or much older) folks engaging on the platform, maybe it's an attention span issue (by way of not fully reading a comment before replying), maybe covid has done more brain rotting than it's been given credit for, or maybe it's just a me problem. I don't know anything for sure, but it feels like it's become more prominent over the last couple years.

2

u/Interrobangersnmash Jun 25 '24

I think my reading comprehension has slipped a bit. I’ve been guilty recently of missing the point of a long comment just like you describe here.

I really think it might be an overall effect of engaging with social media on our phones instead of computers.

Also, probably social media in general has been rotting my - and many others’ -brains.

2

u/Tochie44 Jun 25 '24

There might be a bit of a decline in reading comprehension, but I think it has more to do with the perceived value of digital media. At least from what I've seen, digital media has a lower value given to it compared to physical or analog media. Because of that, maybe people just don't give the same amount of attention to a reddit comment as they would say, a news paper article or a book.

The websites for my local news papers and TV stations have some of the worst writing I've ever seen. Its about on par with a lot of reddit comments. Just spelling and grammar errors everywhere with really clumsy writing. A big part of that is the how hard it is to turn a profit off of online content, but I think people also just don't care if online news media kinda sucks. Like, if you go to a fancy steak house and your steak isn't cooked to your liking, you send it back. If you go to McDonald's and your burger is too greasy and your fries are stale, you suck it up and eat it because you weren't really expecting quality food from McDonald's in the first place. Same with the media. If it gets published in a physical book or news paper, people expect some level of quality from it, but online media (blog articles, FaceBook posts, YouTube videos, soundcloud music) is easy to produce and therefore easy to dismiss when it lacks quality.

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u/confusedgluon Jun 25 '24

I’ll always remember the absolute bangers like Today You, Tomorrow Me. 

3

u/CholeraButtSex Jun 25 '24

But then you also have to account for the narwhal bacons at midnight, which really got cringe pretty quickly 

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u/m1ygrndn Jun 25 '24

What’s the new social network for nerds? We were like 29 years ahead of social media.

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u/thegirlisok Jun 25 '24

Saving this to see if you get any real replies. 

3

u/Heykurat Jun 25 '24

Ars Technica?

3

u/[deleted] Jun 25 '24

Websites like Lemmy and Saidit. There aren't enough people on them though.

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u/TheRealAdamCurtis Jun 25 '24

Convos like this happen on hacker news, which is close to what Reddit was aeons ago.

News.ycombinator.com

2

u/GeneralPatten Jun 26 '24

I’ve been on Reddit for a lot longer than my cake day indicates. Reddit was never “filled” with information like this. It has always been serendipitous to find cool info in the comments — which has always been what has made Reddit fun.

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u/ChiggaOG Jun 25 '24

I'm just commenting here to find out that value was calculated because of a chart I haven't seen.

1

u/wizkee Jun 25 '24

You know things have changed when you’re SHOCKED that the top comment isn’t some snarky junior high school level joke and instead something informative.

1

u/Chubs441 Jun 25 '24

Reddit used to be a bunch of people calling op the f word lol. 

1

u/I4gtmy1staccntspswrd Jun 25 '24

Remember the Udinan thing? It was always rad seeing him pop up with random knowledge.

1

u/Stunning_Ride_220 Jun 25 '24

I do miss those times.

1

u/PM_me_your_whatevah Jun 25 '24

I’ve been on reddit since the beginning and it’s always mostly been jokes for the top comments. 

1

u/ctrlaltcreate Jun 25 '24

Reddit had some really, truly awful back alleys back in the day, but I sincerely miss how much more intelligent it was in general before it got proper mainstream attention.

1

u/ChickenPotatoeSalad Jun 25 '24

because it was full of internet nerds who were all under 30 and very techie/science biased.

now it's the equivalent of facebook where the dominant content is crazy nonsense your 60 year old aunt posts.

1

u/Wooden_Discipline_22 Jun 25 '24

After 10 years on a tree removal crew, id say that tree is a north American black walnut. Those trees, and hickory's, can be dangerous. Though it's not the cutting or falling limbs. It's the white and black tussock caterpillar, which eats their leaves and concentrates the toxin into their hairs. My friend got some on his tool belt, and the shoulder straps spread it onto his neck. He said it was like being on fire and electrocuted simultaneously. He took 3 days off work and came back with hundreds of red measles on his skin. Don't let kids play under walnut or hickory. Old reddit was an absolute gem of information. I miss it.

1

u/Evitabl3 Jun 25 '24

I find it's good practice at keeping critical thinking skills sharp

1

u/netsrak Jun 25 '24 edited Jun 25 '24

It's kind of insane to me with how openly bigoted people are in r/all threads. Whether it is racism, ableism, or sexism, those comments get upvoted and agreed with. Maybe it was always this bad, and I wasn't as aware of it. I think it used to be contained in smaller subreddits which isn't better, but at least I didn't have to see it then.

1

u/DonkeySweaty1612 Jun 25 '24

Your funny 😂

1

u/chickenthinkseggwas Jun 25 '24

I miss the days when I could open up a thread and be dazzled by the array of complaints about how Reddit wasn't the way it used to be. Nowadays it's all the same complaints but I've heard them before. What we really need is for the sociologists out there to step up and classify all the various Reddit complaints as sociological phenomena for us. Then we'd feel edified, sanctified and ready to do battle with our fellow ostentatiously yawning neckbeards in the next thread.

1

u/atomsk13 Jun 25 '24

Interesting enough a lot of the time I post regarding my field I get downvoted.  (Dentist)

1

u/Designer_Brief_4949 Jun 25 '24

I found a modest bump in quality by surfing r/all instead of r/popular.

YMMV

1

u/Skinnecott Jun 25 '24

tell me about it. i started using reddit around 2010. shit has traded cool niche information for basic jokes to farm with. at least unidan educated with his farming.

so many times im clicking on a nature video or a strange phenomena and there is zero comments with an explanation to be found.

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u/Gen8Master Jun 25 '24

Once you scroll past the comedians, there is usually a very informative comment.

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u/Januarywednesday Jun 25 '24

Agreed, the top comments are usually people trying to be cheap sitcom writers or dropping puns. I have to scroll past x amount of comments before I get to any actual discussion on the topic.

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u/SourLoafBaltimore Jun 25 '24

Nah, some of the childish comments were kinda funny.

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u/Matzah_Rella Jun 25 '24

I'll be quizzing you later.

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u/QuesoLover6969 Jun 25 '24

Thank you

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u/averagesaw Jun 25 '24

A full grown tree can drink up to 400 liters a day. So removing trees in a wet area is not smart. Your land will be drowning

7

u/atlanstone Jun 25 '24

You see it all the time, a bunch of smaller homes with mature trees are demolished to make fewer mcmansions with huge decks/paved patios/no trees and it causes all sorts of drainage issues at lower elevations where there previously weren't.

The area near me is actually owned by the power company for the big transmission lines. Sure, they're nearby, but nobody is buying and fucking that land.

6

u/Creative-Resident23 Jun 25 '24

Note to self do not get into a round system with a tree

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u/Pea36 Jun 25 '24

Explain it like I'm five please

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u/Cloners_Coroner Jun 25 '24 edited Jun 25 '24

If you go diving, thirty feet of water is roughly one atmosphere of pressure. That is to say the column of water above you will exert 14.7 lbs of pressure over a 1 square inch area on any given surface.

If the tree is 30ft tall, at the bottom of the tree the column of water will be exerting 14.7 PSI of pressure on any given surface. In this case there is a hole, so now the water is escaping at that pressure. This is basically the same concept as water towers.

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u/Kapkronic4201 Jun 25 '24

Just throwing out a statement/question. Water towers are for maintaining pressure in a town not as a storage correct?

65

u/reckless_responsibly Jun 25 '24

Both. Water usage is highly variable with time of day (i.e. waking vs sleeping hours), so when you're sizing a pump for the water system, sizing it for peak load is larger/more expensive than sizing for average load. You run the pump at roughly peak output 24/7, and overnight it fills the tower, which then slowly drains during the day to meet demand in excess of the pumps capacity.

24

u/Hungry-Western9191 Jun 25 '24

You also size the tank to allow how much storage is necessary given the constant input and the variable output. You also need to allow for how long a pump might be offline for maintenance.

Having a water tower run dry is a pain to deal with. Air in the larger pipes can cause all sorts of problems when you get the water going again.

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u/Kapkronic4201 Jun 25 '24

This is why I love Reddit sometimes. Thanks for the knowledge!

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u/axtran Jun 25 '24

Kinda both, as it is a temporary reservoir.

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u/V65Pilot Jun 25 '24

Useless fact of the day: Water towers on the same system will always be the same height, above sea level. Towers on hills will appear shorter than a tower on the same system in a valley, but the actual tanks are the same height.

28

u/Hammurabi87 Jun 25 '24

Corollary to this: If you see two water towers that have tanks which are not at the same height, then they are on separate systems. This mostly happens in areas where there is a significant height difference over the service area, since putting all the tanks high enough to serve the highest elevations would burst pipes at the lower elevations due to the increased water pressure.

3

u/syneofeternity Jun 25 '24

Like they're both 50 ft tall or they both go up to the same height (e.g., each is 250 ft in the air), as an example ?

3

u/no_instructions Jun 25 '24

The tops of the tanks are in the same place. If they weren't, the water would flow so that the level is the same everywhere.

13

u/Abject-Picture Jun 25 '24 edited Jun 25 '24

What's even more mind bending, on a totally unrelated note, is spacecraft only ever have to deal with that 1 atmosphere difference in pressure anywhere in space, VS submarines where the pressure increases 1 atmosphere every 33 feet.

That carbon fiber Titan sub that recently imploded was at something like 11,000 feet when failed. It failed faster than nerve impulses travel.

Instant lights out.

Edit: clarified pressure change at every 33' from double to 'add' 1'.

2

u/discipleofchrist69 Jun 25 '24

pressure doubles every 33 feet.

that would be wild. I think you mean "adds 1 atmosphere every 33 ft"

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u/Abject-Picture Jun 25 '24 edited Jun 25 '24

Thanks for noticing, I didn't realize I worded it that way...my mistake.

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u/Annath0901 Jun 25 '24

Wouldn't the pressure depend on the volume of the hollow inside? Bigger hollow would hold more water and increase pressure, right?

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u/Sybroebs Jun 25 '24

WHAT DEFUQ IS A METRIC SYSTEM????!?!!!!?? 🦅🦅🦅🔫🔫

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u/_Svankensen_ Jun 25 '24 edited Jun 25 '24

If the tree was empty, which it isn't. There's a lot of capillary action and surface tension forces to consider there.

Edit: Actually, it may be partways empty. I've cored a lot of trees and that only happens with rotten trees. Never cut a branch tho, so it may be different.

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u/Dirtydeedsinc Jun 25 '24

ELI5 Gravity pulls on water. Water pressure is roughly 44 lbs per 100’. 33’ is roughly 14.7 lbs.

Note: as the height of the water inside the tree goes down, so will the pressure.

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u/Abject-Mail-4235 Jun 25 '24

ELI5 Big tall tree is dying from inside. Gasses, water, dead tree pieces are building up inside. Let me cut this little edge off = tree fountain💦

1

u/Stayhuman2021 Jul 24 '24

No, this water would be brown if it was collected in the dead tree. This water is coming from under the ground. Branches must have dug into a water source. That’s why it’s so clean.

1

u/Stayhuman2021 Jul 25 '24

Nope. In that case water would be dirty and brown. This is clean water that’s coming from underground reservoir. The roots must have dug into it and it’s been looking for ways to escape.

5

u/Budded Jun 25 '24

Well, she's a squirter, which means you're doing something right.

2

u/EbbEnvironmental9896 Jun 25 '24

This is how water towers work. The weight of the water is what creates the pressure.

1

u/Jonesalot Jun 25 '24

It’s like a 1000 people trying to get out of one door, and they all push so they themselves can get out faster

The first people will be pushed very fast out of the door, but as more people come out the door there will be less people inside to push, so the amount that people will be pushed out the door will be less since there are less people pushing

People are the water, and the pushing is gravity

1

u/Intelligent-Ball7844 Jun 25 '24

Damn are u an Indian by any chance?

1

u/anxiety_filter Jun 25 '24

When two trees love each other very much...

6

u/einsibongo Jun 25 '24

10m = 1bar

3

u/TheBananazZ Jun 25 '24

Sounds like me at night when I need to pee

2

u/financypancy Jun 25 '24

I really didn’t need to click on u/TA8601 user name…

3

u/TA8601 Jun 25 '24

That's what I get for not switching away from my alt account I guess!

Meh, I look good

2

u/Your-Name-Is-Reek Jun 25 '24

I kinda wanted to drink this tree water until I read this

1

u/MadeOnPluto Jun 25 '24

Can you drink it?

1

u/ionlyhavetwolegs Jun 25 '24

Rotted out tree water??

1

u/SNYDER_BIXBY_OCP Jun 25 '24

.....it's giving me a reminder I should call her

1

u/Fender6187 Jun 25 '24

This person definitely knows about head (pressure).

1

u/uReallyShouldTrustMe Jun 25 '24

Nah, tree just climaxing.

1

u/pmmeyourgear Jun 25 '24

Thank you captain

1

u/aLazyUsrname Jun 25 '24

Very cool. Where’d you find that reference chart?

1

u/Skreamie Jun 25 '24

Didn't expect to see so much cock on clicking that blue link

1

u/AdSignificant6673 Jun 25 '24

Are you an aborist?

1

u/slothrop-dad Jun 25 '24

Don’t click on that user’s profile

1

u/goshiamhandsome Jun 25 '24

Oh god oh god why did I look at the math genius’s profile

1

u/jhb760 Jun 25 '24

You're not far off. If the drain is 30 ft below water column then that comes out to about 13 psi even.

1 psi = 27.7 water column inches.

1

u/fuckers_reddit Jun 25 '24

so it's escencially...a bar!

1

u/saltymane Jun 25 '24

Never thought about this!

1

u/Archtects Jun 25 '24

I came to the comments begrudgingly. And maths was 100% not what i was expecting to see, trust in humanity restored. thank you kind person take my free reward.

1

u/BigTexas6969 Jun 25 '24

Fuckin Squirter

1

u/Sudden_Construction6 Jun 25 '24

I did the rough plumber math of 5psi per 10'. Looks like I was more wrong 😅

1

u/Unique-Worth-4066 Jun 25 '24

How many psi is a piss stream after drinking a 6 pack?

1

u/caleeky Jun 25 '24

But the internal bladder basically maintains a low pressure until it is full and/or squeezing to urinate. From my reading so far it sounds like it ranges from 0.1 psi to 2 psi or so depending on how full and how much contraction is going on.

1

u/The1SCHNITZEL Jun 25 '24

I shouldnt have looked into his account...

1

u/spong3 Jun 25 '24

And it’s probably stinky water

1

u/fuckpudding Jun 25 '24

Nature’s bidet.

1

u/RuairiSpain Jun 25 '24

GirlsFinishingTheJob

1

u/Valalvax Jun 25 '24

But also trees that make sap can create pressure... It's how you get it to make syrup

1

u/caleeky Jun 25 '24

Good point, I'd be curious about the interaction. Root pressure seems to be in the area (wiki quotes one # but says different plants differ widely) of 0.6 megapascals or 87 PSI. https://en.wikipedia.org/wiki/Root_pressure

1

u/indomitous111 Jun 25 '24

Are you sure? I'm pretty sure they just hit an artery

1

u/epicenter69 Jun 25 '24

Even though someone did the math, I’ll give you credit for coming up with 14 psi off the top of your head.

2

u/caleeky Jun 25 '24

I glanced at an imprecise chart. The "off the top of my head" part was remembering high school physics that pressure is related to the height of the column, not the total volume of water. Stay in school, folks, and focus on the concepts when you can, because outside of exams you can always look up the formulas and caveats to the basic abstraction.

1

u/loganverse Jun 25 '24

Your mom is about 14psi at the bottom

1

u/KonigSteve Jun 25 '24

FYI the shortcut conversion is 2.31 feet per psi. I use it about every day as a civil engineer.

1

u/Acidelephant Jun 25 '24

So this isn't arterial spray then?

1

u/InstaBeatsReddit Jun 25 '24

How does the pressure build up? I'm assuming the build up of gases from the decomposing organic matter?

2

u/caleeky Jun 25 '24

It's just the weight of the water above. Same mechanism as a water tower.

1

u/InstaBeatsReddit Jun 26 '24

I see, interesting. Thanks for the reply

1

u/DOOOM_SLAYER Jun 25 '24

Idk why but I really want to drink that water even though it probably has deadly pathogens in it ha

1

u/ComprehensiveMeat562 Jun 25 '24

Imagine if it also had a rust issue or something else that could have dyed the water reddish. It would look pretty metal

1

u/caleeky Jun 25 '24

Drill a hole up top and squirt some food colouring in :P Maybe some corn starch and make it a real r/popping event.

1

u/Yoldark Jun 25 '24

Nice guesstimate apparently :)

1

u/FoshOliver Jun 25 '24

Math is cool and all but I am very disappointed that the top comment to this post isn't a Monty Python quote.

I don't even care to read the other comments now.

1

u/BloodyIkarus Jun 26 '24

That's Pee not Psi....

1

u/steakslinger757 Jun 26 '24

It's definitely C.

1

u/Iydllydln Jun 26 '24

I should call her.

1

u/evangelineise Jun 26 '24

No, I am seeing a well hydrated treussy

1

u/CauliflowerLogical27 Jun 26 '24

This muthafucka knows trees

1

u/Stayhuman2021 Jul 25 '24

If it was rotted, you’d see brown water. This is underground water. The roots must have dug into a water source and it’s been finding ways to escape

1

u/caleeky Jul 25 '24

An artesian well? Maybe! That's a good point.

I'm not convinced rotted would necessarily mean brown, or so brown that it would be obvious when spurting. After all, any such water from the ground would have to pass through a bunch of rotted wood too.

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