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@singing-a-reckless-serenade
cats camouflaging themselves
So now that we have all the backgrounds, when do we get the pictures of the cats?
Day 15 of Old Art
The loveliest lies of all
âscratch a transphobe and a misogynist bleedsâ
siobhan o'leary gives us a brilliant deconstruction of transphobia, and transmisogyny specifically
Source: https://twitter.com/siobhanftb/status/1020309083423821825?s=21
This is some scalding hot fucking tea and Iâm here for it.
hold up im reading more about the lionfish thing and this one island in Honduras has had such a huge problem with lionfish that the measures they have taken include
âą getting special exemption from the Honduran government to allow divers access to harpoons and spears which are otherwise illegal in fishing
âą public campaign to teach people how to prepare and eat lionfish (apparently they are very tasty once the poisonous spines are removed) (but watch out)
âą holding lionfish combination hunting competition and cookout (reportedly they killed and cooked 1,700 in a day) (someone killed 60 of them with a rubber band spear gun???)
âą most recently and apparently out of desperation, the divers in charge of culling the lionfish in the Roatan Marine Park just started. feeding the lionfish they killed to sharks. bc what else are you gonna do with it
âą the sharks donât seem to notice or be affected by the poison and begin hanging out with the divers
âą the sharks then were seen hunting and killing the lionfish on their own
like this is nuts to me sorry. the sharks just had to be shown âhey this is food, did you know?? you can eat these!! here try one!!â we are possibly altering an entire foodchain bc we like feeding the big ocean wolves
hereâs the article please read it
I know it's because they're invasive but it's hilarious how many different ways human have come up with to send this one fish in particular to the plinko.
Can confirm, these fish are delicious
Sharing this with my spouse, who fucking loves stuff like this.
This video is titled Teaching Eels To Eat Invasive Lionfish
On the discussion of book accurate depictions of Sherlock Holmes, one thing I really want is accurate Mycroft. In the books Sherlock is very⊠autistically coded. At least to me, an autistic person. And Sherlock basically states that Mycroft has more âsevereâ autism. Sherlock says his brother is more brilliant than he is but absolutely cannot function in society and hates social interaction so much he founded a society for the purpose of minimizing it as much as possible. In addition itâs implied he becomes overstimulated so easily he has to curate his environment to be devoid of disturbance and noise.
Give me the autistic brothers but one has it much much worse
Enough of this Mycroft as the more sociable of the two who is a powerful politician. This man would have a meltdown if he had to be that social!!!
Mycroft goes one (1) place and then goes home, at the same time every day, and does not talk to anyone if he can avoid it, and is really good with facts and figures. Given the state of mental health research in the late 1800s, Mycroft is possibly the most autistic a character could be. And he's HAPPY - do you know how rare that is in fiction about autistic people? Sherlock is super clear about this: Mycroft does his Mycroft things, and has no desire to do any other things, and everyone is super grateful for him being himself and sorting out all their facts for them.
Obviously we only meet him in the stories when he's been forced to Get Up And Go Do Something because of circumstances (that's how adventure stories work, after all) but the majority of the time, Mycroft is having a great time looking out the window and not talking to anyone. Good for him, I say
Stay cozy âïžđ°đđȘŽ
it's so wild when people complain about religious inclusion like "oh so you think THEY should get special privileges/accommodations to do x, y, or z??"
and the things they're talking about are like. exceptions to rules or norms that in themselves shouldn't exist. yes Richard, we actually should have diverse meal options at work events to accommodate people with different diets. yes, people should be allowed to take time off to be with their family during whatever holidays or life events they so choose. yes, people should be able to wear clothing that makes them comfortable. nobody should be happy about these restrictions existing. stop bitching about the singular jewish or muslim person in your workplace and realize that everyone deserves better.
I had an interesting experience recently, which I feel like culturally Christian people might benefit from hearing about. I've been recently in the process of helping to plan an event. Many attendees at this event keep kosher. Since kashrut is a very specialized dietary restriction, which I know not all venues can accommodate, my first question to all of the potential venues I've looked into has been "do you allow outside kosher catering vendors, or otherwise have some way to allow for kosher catering?"
One of the venues I reached out to replied that they were "capable of providing for our dietary needs." Now, since I'd asked about several possible catering options, and since they'd only replied generally and without actually specifying which they were saying they could do, I was a bit suspicious. So I followed up, and asked what exactly they meant by that: did they allow outside caterers in general? or did they have a specific kosher catering partner? or could they actually cater kosher food themselves? what?
Their answer was â and I swear I'm not making this up â that they didn't allow any outside caterers, and couldn't cater any food which was actually kosher, but that they could provide us with a menu that included "knishes" and "potato, pancakes" [sic], and so hey, that was basically the same as providing for our dietary needs, wasn't it?
Now here's the thing:
The dietary restriction shared by the most people at this event is keeping kosher, but one of the attendees, who doesn't keep kosher, has a severe peanut allergy. If we had done what we were planning to do and simply specified "peanut free", and if the venue had decided, like they were apparently willing to do for the kosher food, "well ok, it's not actually peanut free, but it's mostly peanut free, and that's basically the same thing"? They could have literally killed her. And if I hadn't specifically asked, in detail, about kosher catering first, I might never have known about how lax they were about providing for dietary restrictions in general.
Now could we have explained the nuances of kosher restrictions to this venue and tried again? Yes, possibly. But their unwillingness to even try on the first pass made it abundantly clear that they were not a safe venue to work with on allergy grounds. We crossed the venue off our list immediately, and I reached out to other people in the area who I knew might be planning similar events in the future, and warned them to never use this venue, either.
Accommodations like this are instances of the curb cut effect. If you don't personally have a diet or a family obligation or clothing needs that need accommodating, it's easy to get annoyed at the people you see who are loudest about asking for those accommodations. But having those options available helps everyone, and the fact that some workplaces and and businesses and event vendors refuse to accommodate these needs should be a red flag to everyone.
Maybe you don't care about kosher or hallal food. Maybe you've never had reason to take off work at an unusual time of year, and maybe you've never wanted or needed to wear anything unusual. But today it's your Jewish or Muslim coworker, and tomorrow it could be you or someone you care about â with a surprise medical diagnosis that limits your diet, or with a sudden family emergency at an inconvenient time of year, or with a sensory problem you've struggled with your entire life but can no longer mask, or who knows what else. We all deserve better, and the people who are openly saying so are not your enemies.
Unrealistic polymath genius: has six PhDs.
Realistic polymath genius: just has the one set of degrees, but their bachelorâs, their masterâs, and their doctorate are each in a different field, and theyâd be happy to explain â at great length â how the three relate to one another.
@cellarspider Itâs you.
OKAY SO
My undergraduate degree was in Medieval Studies.
My professional masters degree was in Bioinformatics.
My current PhD studies are in Mammalian Genetics, emphasizing the overall physical structure of the genome.
The PhD and masters are fairly easy to relate to each other: Bioinformatics is a field that develops software and computational methods for examining and understanding biological data. Modern genetics often relies on people with these skillsâwhile many labs can still focus intently on the workings of a single gene, if you want to understand how that gene interacts with the world, you can start generating a lot of data. A LOT. More than it would ever be feasible to process manually.
So, having a background in bioinformatics allows me to focus my work not on single genes, but on how the physical structures formed by DNA affects how genes are used. Thereâs 3 billion letters of DNA in the human or mouse genome, with thousands of genes, with thousands of mutations my project has cataloged, and tens of thousands of structural components to analyze along side them. If you were to randomly test each and every one of those three types of data against each other to blindly search for interactions, I calculated youâd have to run 371 trillion comparisons. My job started by trying to figure out how the fuck to pare that down to something manageable with the computing power I have, and Iâm hopefully about to publish something damn cool on what I found in the process.
So, thatâs genetics and bioinformatics. Sure, those fit together logically.
Medieval Studies, tho
Thatâs where things get interesting. The professors at my university were very careful to teach you about the idea of the âhistorical lensâ. When you read an old text or look at a painting, youâre viewing the subject matter through the lens of your own experiences and presuppositions about the world, and about the time period youâre studying. The person who wrote that text or painted that painting had their own lens, shaped by very different circumstances. Their natural focus is not going to align with your own, and you have to be aware of that. When you start forming ideas about your object of study, you have to ask yourself, âam I seeing what the creator of this piece intended to convey, or am I making assumptions based off of what I want to see?â
In essence, the core of what was taught in that Medieval Studies program was how to think about your own thinking.
And that is so fucking important for good science. âAm I drawing logical conclusions that are supported by the data, or am I just seeing this because I want to see it? Is there some test I can do to check if Iâm wrong?â
Itâs not easy. Sometimes it can be really uncomfortable, in fact. But it leads to more and better results in the long run, because those moments of self-reflection help uncover possibilities that you missed before.
âŠAnd thatâs without getting into the seminar paper I wrote on the medieval understanding and treatment of head trauma, as a case study in the medieval periodâs contributions to the development of science and technology. Because that was also a thing.
Hello, Iâd like everyone to meet one of the most interesting people I know, also Spider please tell everyone about the Medieval Head Trauma paper because itâs fascinating and hilarious.
oh my gosh coming from gallus thatâs saying something, Iâm flattered
OKAY SO ABOUT THE MEDIEVAL HEAD TRAUMA
This post contains Thorâs migraines, Arthurian knights spinning in circles, and the medicinal use of egg whites on your brain. CW for mentions of medical gore and aggressive head bonks, obvs. Also, this is the result of undergraduate research, and should not be considered comprehensive. If you know more, throw it at me. If you have a correction, I will happily take it! And if you can remember the title of that one book I found once in my university library called something like âHead Trauma in World Myths and Legendsâ, TELL ME. I canât fucking find the thing, but I swear it exists.
Also heck my life, Tumblr ate the first attempt at this post. Always write your long drafts on a more stable platform, guys
So. Depending on where and when you lived in western medieval Europe, you might have a very different relationship with the constellation of injuries falling under the category of head trauma. These injuries were either mysterious and beyond the realm of healing, a weird side effect of people not dying so often, or a comprehensible problem that sometimes could be treated by medical and surgical intervention.
A great example of head trauma as mysterious scourge comes from Norse mythology. To cruelly TL;DR a surprisingly hilarious little myth, Thorâs giant-smacking escapades result in a piece of flint getting stuck in his skull. Neither he, nor Sif, nor a witch they call up can remove it. The witch almost manages it, but Thor distracts her at a critical moment, so her magic fails. The myth ends with a moral to the audience: donât throw your flint tools around, or youâll give Thor a migraine. Yes, really.
(personal side note- somebody must be throwing hella flint around today, fuck)
In this story, head trauma is just something you have to live with. Magic might be able to help you, but it failed even Thor, so donât expect better results yourself. And we do have skulls throughout European history that show evidence of lots of people living for years with untreated skull fractures, though with a higher risk of premature death. (One source here, from Denmark, which mixes in some early modern skeletons as well.)
Now, that myth fits the time and place it originated, which is true of stories in general. But one thing you can do in comparative literary analysis is look at the variations between tellings of common stories. And one great mine for this is Arthurian legend. King Arthur and His Circle Bros were popular subjects throughout the British Isles and France for centuries, which one can use to analyze the values, morals and world views of their storytellers.
And also, what happened when you got bonked on the head. See, each storyteller might have their own first-hand experiences with battle, or theyâd have patrons who they wanted to flatter or entertain by incorporating Based-On-A-Shocking-True-Story details into the stories, or they were just paying attention to other storytellers at the time and seeing which action tropes were popular.
So, the early Arthurian treatment of head trauma can be summed up in three words: bonk means death.
But after the late 12th century (which admittedly is where we get a lot of our stories from), head trauma starts to become survivable. And sometimes, itâs weird.
Menâs brains swim like water, and they might fall off their horses. If theyâre not mounted, they might run around in circles and then fall down. What changed?
The bonk protectors changed! the heaume or great helm style was developed, which is more likely to stay on and protect the head from any angle, though itâs vulnerable to transferring the force of downward blows into the head, neck and shoulders. With more people surviving blows to the head, that means more concussions and traumatic brain injury, and thatâs reflected in the stories.
But what about medical textbooks? Well, it probably wonât surprise many to know that western European medical manuals sucked SO MUCH ASS for centuries. The reason why is a rant for another time (and I CAN AND I WILL RANT ABOUT IT), but there was light at the end of the tunnel.
While Western Europe lost almost all Greek medical scholarship and condensed the Latin texts down to near-gibberish, the Eastern Roman Empire had preserved those texts, and the Islamic world had expanded greatly upon that scholarship with their own research and experimentation. During the Islamic Golden Age, traders from Italy brought some Greek and Arabic texts back from the Muslim world, and translations were made into Latin. This gave Italian academics access to a more vibrant and systemic tradition of medical science.
Enter Rogerius, AKA Rogerius Salernitanus, AKA Roger Frugard, AKA Roger Frugardi, AKA Roggerio Frugardo, AKA RĂŒdiger Frutgard and AKA Roggerio dei Frugardi (jfc dude), a surgeon from Salerno (unknown-1195). While surgery would remain a low status profession for centuries, Rogerius produced a well-organized and clearly written surgical manual, the Practica Chirurgiae. This book, I want to stress, is not flawless, especially when it comes to pharmaceuticals. Digging into the German Commission E Monographs (started in the 1970s, which systematized scientifically proven effects of traditional herbal medicines), Rogeriusâ poultices for wounds do fuck-all for healing, but would probably be fantastic for an upset stomach if you ate them.
HOWEVER, the surgical contents of the manual show that either he was working with fantastic written texts at the University of Salerno, and probably had some good first-hand experience with treating head trauma.
The text provides some practical information on diagnosing the kinds of head injuries a surgeon could actually treatâwhile concussion was still something youâd just have to deal with, a bonk on the head can have lots of other bad effects. You can develop a build-up of fluid within the skull (cerebral edema), or skull fracture that can press pieces of bone down onto the brain. Or you could have tears in the scalp, or worse, the protective layer of tissue around the brain itself (the dura mater).
Rogerius lists ways to diagnose edema and closed skull fractures (where the scalp isnât broken but the skull is). He describes surgical techniques that are still the basis of many in use today, for incisions and suturing of the scalp, removal of bone fragments and foreign objects, and relieving pressure on the brain from edema. Yes, that last one involves trepanning, AKA drilling a hole in the skull, and yes, it can actually be life-saving in this particular case.
And thereâs one bit he talks about which I find outrageously cool. See, wound healing has always been one of the biggest problems in medicine, and it was an absolute matter of life and death before the advent of sterile medical technique. Sure, you might be able to clean a wound with some alcohol-based mixture, but that would be disastrous for wounds that pierce through the skull. This probably goes without saying, but pouring alcohol on your brain is very, very bad.
So, what the fuck do you do when you have a patient with a gnarly head wound that exposes the dura mater, or the brain itself? Water isnât clean, alcohol is potentially deadly. How do you wash the wound clean?
Get an egg.
Fresh eggs straight from the chicken are sterile capsules that protect the developing embryo. Theyâre full of liquid-y stuff you can use as a wash! BUT. Rogerius specifically lists egg whites for cleaning head injuries, not yolks. I donât have any scholarship on why, beyond some interviews with a doctor in my family, but our best guess was that the cholesterol in the yolks could be harmful to the brain and dura mater. But the egg whites by themselves? Theyâre almost pure protein, including some anti-microbial factors that help defend the embryo in case germs sneak in.
Overall, itâs a brilliant solution to a thorny aspect of wound care, in a time before germ theory, and centuries before Europe would collectively remember you need to sterilize your medical tools. Fucking! Fresh egg whites! Itâs fantastic.
So thatâs the tl;dr on medieval understanding and treatment of head trauma. A mixture of mystery, medieval pop culture, and medical science. This is the kind of practical history that I found most engaging to studyânot lists of kings, not court politics, not wars, but a small, strange little corner of medical history that tells you more about the life and times of people through the ages.
And thatâs what a lot of modern historical research is actually like! Find a tiny little subject that sparks joy catches your interest, and dive in. I ended up jumping over entirely to biological sciences in my post-grad research, but I donât regret a minute of my undergrad. History in all its crumbly little details is awesome.
Itâs the medieval head injury paper! Summarized beautifully for those of us that donât have the concentration to wade through original sources!
But yeah, it really clear how the skillset of âlook at the data to see what it says, not what you hope it saysâ is extremely applicable across art, history, science and math and thatâs why every real genius Iâve met is interested in a wide variety of topics- the thing youâre actually interested in is the act of learning.
I found this post again, so everyone please congratulate
DOCTOR SPIDER
Upon completion of their PhD and their descent into Baldurâs Gate 3 Madness so Iâve been learning a lot about videogames design and narrative construction im visual media from them too.
I mean. Mediaeval Studies to Bioinformatics also makes total sense: Bioinformatics is multi-disciplinary and involves designing tools to understand large amounts of information (data sets, mostly) from biological sciences that are complex and from sources that donât usually talk to each other. And so on.
Mediaeval studies is multi-disciplinary and involves (among many other things) designing tools to understand large amounts of information from history and archeology (and a lot of the time a bunch of the sciences too) that are complex and come from sources that never talked to each other until some mediaevalist wanted to track sheep across mediaeval Europe (in order to sort out details of the book trade) and realized that while the records were all shite, you could probably do it by genes in the parchment.
So honestly, can totally see that jump quite easily if you happen to gravitate towards the nifty bio aspects.
no no, I know what you're thinking but it's actually amazingly great, keep watching.
Oh wow did not see that coming
What the actual fuck
Gonna start doing this irl. I'm asexual, but i can take one for the team
I mean stealing the wife of someone who stole a handicap spot isn't a bad idea.
Weâre winning.
I found his bio on societyofpresidentialdescendants.org and it was so delightful I had to copy paste the whole thing:
âUlysses Grant Dietz grew up in Syracuse, New York, where his Leave it to Beaver life was enlivened by his fascination with vampires, from Bela Lugosi to Barnabas Collins. He studied French at Yale (BA, 1977), and was trained to be a museum curator in the University of Delawareâs Winterthur Program in American Material Culture (MA, 1980). A decorative arts curator at the Newark Museum for thirty-seven years before he retired, Ulysses has never stopped writing for the sheer pleasure of it. Aside from books on Victorian furniture, art pottery, studio ceramics, jewelry, and the White House, Ulysses created the character of Desmond Beckwith in 1988 as his personal response to Anne Riceâs landmark novels. Alyson Books released his first novel, Desmond, in 1998. Vampire in Suburbia, the sequel, appeared in 2012. His most recent novel, Cliffhanger, was released by JMS Books in December 2020.
âUlysses lives in suburban New Jersey with his husband of 45 years. They have two grown children, adopted in 1996.
âUlysses is a great-great grandson of Ulysses S. Grant. His late mother, Julia, was the Presidentâs last living great-grandchild; youngest daughter of Ulysses S. Grant III, and granddaughter of the presidentâs eldest son, Frederick. Every year on April 27 he gives a speech at Grantâs Tomb in New York City. He is also on the board of the U.S. Grant Presidential Library and Museum at Mississippi State University.â
And frankly, the novels sound like they slap:
Desmond was nominated for a Lambda Award.
âWith his husband of 45 years.â You kids donât know ... they got together before AIDS, at the peak of the Gay Glam Life. They stayed together as their generation died around them, and made through it to the point where they could marry and have a legal family. He looks like a chipper preppie who never had a serious thought or care in the world, but it took *incredible* determination, commitment, and also luck to get here.
having now read the first of this man's vampire books, you can absolutely tell that he cares a lot about historical furniture because oh my god he really wanted to tell us about all the historical furniture in this vampire's house. material culture as foreplay. seduction via theses about chairs
remove brain
Extremely unpopular opinion but the concept of bodily autonomy needs to FULLY extend to extremely depressed people who are at risk of self-harm. Like, essentially arresting people for it doesn't fucking help, and violates their right to determine their own care. Get people some peer support, therapy, material assistance with daily tasks, get them help that helps. Don't make them walk on eggshells around twitchy medpros who will call the cops on them and throw them in crazy bitch jail for wanting a fucking break.
I'm sick of having to walk on my tiptoes while simultaneously disclosing my trauma to people who could send me off to be further traumatized. Either let me talk or YOU shut the fuck up and don't ASK me about it.
Especially if you aren't my psych or therapist! Sorry, GP's nurse, you don't have my trust. You are some random person I have never seen before. Let it fucking go.
YES YES YES FUCKING YES THIS.
Involuntary confinement for depression and SI is fucking traumatic and stems primarily from some bullshit puritanical fears about death. It's counter-productive and does harm to the very people who are struggling. How is it any fucking better for the cops and medicos to do some serious mental and potentially physical harm?
- someone who spent decades with casual SI as the background radiation of their life but avoided diagnosis for years because of these shitty attitudes
In the few studies that people have bothered to do, it's been found that involuntary inpatient (which I consider outright kidnapping and unlawful confinement) doesn't really help people. Outcomes are terrible, and the risk of further trauma is very high. Conditions are often terrible, abuse is rife, other medical care for other health conditions is poor to nonexistent, and patients are dehumanized and subjected to psychologically manipulative tactics. Also, they sometimes have to pay for their own incarceration.
Yet I can't usually tell my providers "I would literally kill myself when I got out, either out of immediate trauma, or as a knock-on effect of never again going for any sort of psychiatric care, leaving me unmedicated." I can't even tell them the truth.
"Oh, they won't actually section you if you just mention suicide." Why don't you talk to more people who have been sectioned and see just how much you are wrong.
I am in no way advocating for people not to get therapy and meds, to see if that helps, but psychiatry itself? Like, the system and also most of the actual medical part? It has next to no use at all, and is only there to gatekeep, pathologize, monitor, and threaten patients.
Therapy and meds have helped me immensely. Saved my life.
Psychiatry? Hasn't done shit besides diagnose me (which I found helpful). This constant micromanagement from the psych? The constant intrusive questions from even my GP because my file is flagged for regular mental illness "screenings" that actually do me more harm than good? The patronizing suspicion with which I am regarded for being on the meds I'm on? Fuck that.
The idea is to be able to go to someone who understands your conditions and is better able to manage medications for those conditions because those can be tricky. It's unfortunate that you can't be sure they can do the former, and that they actively seem not to want to do the latter, or do it poorly on purpose.
This is a really good example of something that bothers me a lot with the field of medicine (at least in the US, can't speak for others): GPs should not be treated like jacks of all trades and it only gets worse when legal requirements to be one get imposed.
Your GP is qualified to discuss general topics and handle issues up to a certain point. They are NOT experts in every field of medicine and are literally not as qualified to handle many situations as a specialist.
However, in order to try to improve access to things, many GPs are now expected (and, if they are, it's required by law) to do mental health screenings and various "extra" things in every appointment (asking about home and food security, etc).
This sounds great in theory to many folks ("oh good, now we have an extra way to make sure folks are getting help!"). But besides the fact that these extra tasks take away time from the actual appointment (resulting in rushing about whatever the doctor is actually qualified and there to discuss, etc), the GPs are commonly either not qualified to get or use the information well from these extras or have minimal follow up actions.
Someone says they're concerned about having access to food? The GP is supposed to tell the local social worker contact. Except they're slammed and don't have resources either so they'll pass them down a chain of other no resource contacts or it'll just be dropped.
Someone mentions suicide? Well fuck, GP isn't qualified to know the level of concern they should have or not but since they're legally required to ask and held responsible if they handle the task wrong, better escalate.
Add in that insurance companies commonly want a GP to try to treat you for just about anything rather than have you see a specialist. Now you've got a GP who has less training than a specialist but expected to do the same job and more and is potentially legally required to do it even if they know they're not qualified to do so.
Going to a local burger joint is like entering a weird comedy sketch on its own.
Congrats on being in Nichijou, OP
being an adult is just dragging urself kicking and screaming to things that you will enjoy and that will be good for you
clenching my teeth and muttering under my breath "you'll be happy you did it you'll be happy you did it you'll be happy you did it" as I physically force myself out the door to go Do Things
being very firm with myself every time I think about bailing and saying "no. you committed to this. it will improve your quality of life. you will enjoy it. now put on your big boy pants and go."
Context: the latest updates continue to be depressing and not surprising.
Negotiations between the Writers Guild of America (WGA) and the Alliance of Motion Picture and Television Producers (AMPTP) hit another stan
surely this is a good idea that doesnât have the capacity to end real fuckin badly
Bridges arenât supposed to have weight restrictions on them. That is, they donât come with weight restrictions on them when theyâre new. So a bridge with a weight restriction on it is a sign that something has gone wrong and the bridge does not meet current standards.
The maximum weight that a vehicle is allowed to carry on the Interstate System per federal law is 80,000 pounds gross vehicle weight (with a max of 20,000 pounds per axle). Thatâs 40 tons. That limit applies to every inch of pavement, not just the bridges. Since this is a known cap, a new Interstate bridge will be designed to accommodate an 80,000 lb GVW load on it. You could say the bridgeâs weight limit is 80,000 lb/40 tons but that doesnât really have much meaning, because a load higher than that would be illegal to transport on public roads anyway, and the road leading up to the bridge has the same weight restriction. (In practice, the bridge doubtlessly will be designed to have a little bit of let to it just in case some idiot tries to squeak by a few hundred extra pounds.)
Now, note that that law applies to the Interstate System only, because the federal government only has a governing interest in the Interstate System (and other roads that together make up something called the National Highway System) because they partially fund it. Most long-distance roads are owned and funded by the states. The states could theoretically set lower standard weight limits and/or design bridges with lower weight limitsâŠbut in practice they donât.
One, because all of that 80,000 lb GVW traffic on the Interstate system has to go somewhere when it exits the system.
Two, because a group called the American Association of State Highway and Transportation Officials (AASHTO, who are best known for picking the road numbers) maintains a catalog of standard components for making bridges that meet Interstate System requirements. Engineers are expensive on a per-hour basis, so if you can direct your engineer to use standard components and make a standard bridge, thatâs a lot cheaper than having them design a bridge from scratch to go over the creek in Nowheresville. As a result, most new bridges meet Interstate standards and have an 80,000 lb GVW rating even if they arenât on the Interstate system. (This is also why all new bridges kind of look the same, but weâre not worried about how boring the bridges are for the sake of this post.)
So a bridge only has an explicit weight limit if it has been damaged in some way (through failure to properly maintain it usually) or because it predates the application of Interstate System standards and the standard AASHTO bridges.
Older bridges often have other problems in addition to the weight limits: many older designs are what we call âfracture criticalâ, which means that if one component of the bridge fails the whole thing collapses. Modern bridge designs have redundancy designed into them so that if one beam fails the other beams will carry the load until the damaged beam can be replaced. Older bridges also often donât meet other standards, like height (16 ft clearance) and width (12 ft per lane plus 14 ft for shoulders) requirements.
Biden isnât advocating eliminating weight limits and letting it be a laissez-faire free-for-all where trucks can just go wherever they want. Heâs advocating for replacing bridges that carry weight limits with new ones that donât have them.
wow i got absolutely schooled thank you for all this this is really informative. i have learned so much
This is a great explanation of what the fuck Biden was talking about in his tweet. because I will freely admit that I also went ââŠâŠ.wtf?????â when I read it. So thank you.
Today I learned about civil engineering.