How they used to get rid of motor oil back in the day.
this post was submitted on 29 Dec 2023
303 points (96.6% liked)
Ask Lemmy
27049 readers
1805 users here now
A Fediverse community for open-ended, thought provoking questions
Please don't post about US Politics. If you need to do this, try !politicaldiscussion@lemmy.world
Rules: (interactive)
1) Be nice and; have fun
Doxxing, trolling, sealioning, racism, and toxicity are not welcomed in AskLemmy. Remember what your mother said: if you can't say something nice, don't say anything at all. In addition, the site-wide Lemmy.world terms of service also apply here. Please familiarize yourself with them
2) All posts must end with a '?'
This is sort of like Jeopardy. Please phrase all post titles in the form of a proper question ending with ?
3) No spam
Please do not flood the community with nonsense. Actual suspected spammers will be banned on site. No astroturfing.
4) NSFW is okay, within reason
Just remember to tag posts with either a content warning or a [NSFW] tag. Overtly sexual posts are not allowed, please direct them to either !asklemmyafterdark@lemmy.world or !asklemmynsfw@lemmynsfw.com.
NSFW comments should be restricted to posts tagged [NSFW].
5) This is not a support community.
It is not a place for 'how do I?', type questions.
If you have any questions regarding the site itself or would like to report a community, please direct them to Lemmy.world Support or email info@lemmy.world. For other questions check our partnered communities list, or use the search function.
Reminder: The terms of service apply here too.
Partnered Communities:
Logo design credit goes to: tubbadu
founded 1 year ago
MODERATORS
The oil is now outside of the environment
It's not IN an environment, it's been towed OUTSIDE the ENVIRONMENT
load more comments
(1 replies)
load more comments
(29 replies)
Aristotle was obviously a great teacher and philosopher but he ended up being wrong about a lot. Like he thought the “elements” were earth, wind, fire, and water and that all objects want to be in their “natural” place. So, if you drop a rock, it tries to return to the earth. Fire goes up because it’s trying to get to where it “wants” to live.
He thought eels didn’t procreate because no one had ever seen it happening. (They go out to sea to fuck.) He was into bees and correctly noticed that there were workers and drones and that young bees grow out of the honeycomb. But he just assumed the Queen was a King and that worker bees were out collecting tiny baby bees from flowers. (He thought the air just blew pollen around and the honey naturally appeared.)
He had a lot of ideas that were just ideas but he was so influential and his writings were preserved and translated. It took a shocking number of years for people to question if Aristotle was full of shit.
The worst part of it was that for a ton of stuff he had contemporaries that were right about much much more, but were dismissed in favor of his confidently incorrect BS.
For example the Epicureans, who thought matter was made of tiny indivisible parts, that light too was made of indivisible parts moving really fast, that each parent contributed to a "doubled seed" which determined the traits of the child and could bring back features of skipped generations, that the animals which we see today were just the ones that were best able to survive to reproduce, and that all of existence arose only from the random interactions of these indivisible parts of matter and not from any intelligent design.
And because Aristotle's stupid ideas influenced the lineage of modern thought, most people learn about him but very few learn about the other group that effectively preempted modern thought millennia earlier.
But he just assumed the Queen was a King
Actually, he acknowledged "some say" the Queen was female, but then argued it couldn't be because the gods don't give women weapons and it had a stinger. And the identification of the leader of the hive as male was actually used for centuries to justify patriarchal monarchy as being "by God's design" because after all, look at the bee hive (somehow when we realized it was actually a female that logic went up in smoke).
So there were other people that did know what was correct, but Aristotle screwed up the development of thinking around it by rationalizing an opposite answer with an appeal to misogyny.
Wild that he was only two degrees of separation from a teacher famed for praising the knowledge of self-ignorance and not falling into false positives and negatives.
load more comments
(3 replies)
"Element" is a fairly general word, we just generally use it colloquially to refer specifically to the chemical elements. If you interpret his usage in the same way we use "states of matter", it's not horrendously far off. Earth, water, air, and fire roughly correspond to solid, liquid, gas, and (extremely rudimentary, very low ionization) plasma (or perhaps a more general energetic concept). In any case, an object "wanting" to get to its "natural" place also isn't terribly far off from a statement of consistent physical laws. Solids do "want" to accumulate with other solids by gravity, energetic gases do "want" to rise above less energetic ones through buoyancy.
load more comments
(1 replies)
load more comments
(7 replies)
Check out the history of bird migration science. There was everything from birds going to the moon for winter, swallows burrowing in the mud, transmorphing to different species, up to the 19th century
load more comments
(3 replies)
Lightning never strikes the same place twice. In fact it favors repeated strikes at the same arcing point.
In the middle ages churches would ring the steeple bells during a thunderstorm in an effort to soothe God. (it was assumed the Christian God was directly responsible for lightning.) This resulted in such an epidemic of lightning deaths among parish priests that ringing church bells in thunderstorms remains a criminal act in some regions of Europe.
Modern cathedrals and statues are fitted with replaceable lightning rods, in an admission God is content to let the mechanics of static electricity guide His thunderbolts.
load more comments
(1 replies)
Classic case of survivorship bias
People back in the day had just as much terrible advice as we have today, it's just that the only one that survived long enough to survive to the present day is the really good advice
But to answer the question, anything related to the ingestion of mercury
Or anything radioactive. Turns out it was a bad idea to make radium-lined water coolers
load more comments
(9 replies)
Anything related to health care in general, really. Keep in mind that germ theory was only invented in the late 16th century, and it was ridiculed for centuries in favour of Miasma theory. It wasn't until the mid 19th century that it started gaining legitimacy.
load more comments
(1 replies)
witch burning
load more comments
(1 replies)
I read Montaigne's essays (written in the 1500's) and while his views are remarkably modern in many ways, one thing that stuck out to me was how unabashedly elitist he is. The translation I had used the phrase "common herd" to refer to the large majority of people who failed to impress him due to their lack of education or strength of character. I hesitate to speak for him since I think he was a wiser man than I am, but I expect that our modern notions about democracy would have seemed ridiculous to him. He might accept that universal suffrage is in practice the least-bad option currently available to us, but he would argue that at least in principle it would be better to exclude people who don't actually know how to run a country from the process of deciding how the country is to be run.
(He would also be unashamed to say that the life of an exceptional person is worth more than the life of someone ordinary, but we think that in the modern day too. We just consider it rude to be so explicit about it.)
To be fair, our modern concept of democracy really is quite shitty and the only reason we use it is because it is better than anything else we came up with so far.
But generally the notion that the common person cannot be entrusted with politics holds true even if we find it distasteful. The average person is a fucking idiot and objectively not qualified to decide on political matters.
Case in point, Brexit.
load more comments
(2 replies)
load more comments
(5 replies)
Most forms of medical advice, some of it stuck around for a long ass time (bloodletting and the idea of spirits and humors lasted several millennia), but I imagine that the vast majority of it is lost to time.
You don't even have to go all that far back to see this in action.
In the 90's, the universal medical advice was to avoid fats, sauces and dear lord never eat more than 2-3 eggs in a week or you'll have a coronary before 40.
You still shouldn't go overboard with fats and sauce which is made with fat, but the advice that you shouldn't eat more than 2-3 eggs in a week is entirely defunct now.
You can eat 2-3 eggs a day (which many people do without even knowing as eggs are used in a whole lot of things) without any medical disadvantages.
load more comments
(9 replies)
Its perfectly safe to burn any and all trash
Especially batteries
It was safe to burn batteries when they were made of zinc.
Modern battery chemistry is the problem there
load more comments
(3 replies)
Read the theories of René Descartes (17th century) about the nature of air and the atmosphere. Try to get his original texts (translation if needed), not any secondary works.
It is some seriously sick stuff, from today's point of view :-)
At his time he was quite a renowned scientist.
That there is an invisible structure all around us that allows gravity, light and electricity to move through it. Now debunked or replaced.
Trepanning to release evil spirits.
Drill a hole in your head as a cureall for any mental behaviour abnormalities. Still practised as an emergency surgery, only to release life-threatening blood and pressure buildup inside the cranial cavity.
Gut pain? Almost drowned? Time to blow some tobacco smoke up your bum. Discontinued.
load more comments
(4 replies)
Babylonian astronomy
pretty interesting wiki page, is their 60 base math the reason we still have 60 base time?
HEAD ON APPLY DIRECTLY TO THE FOREHEAD!
Medicine and not taking anything as the will of god you should just accept, this and perception of death. That direct war, colonies are necessary - because now soft power, investments, influence, proxies are seen as more effective and better for business. That raw physical fitness means an easy superiority - and not a gun. Slavery and serfdom took other forms, so are associated stereotypes. Talking while seemingly alone is, arguably, not a solid sign of a mental illness now. First paleness became no longer a wanted trait, then we learnt that sun tan can be bad too. Putting fire to a field or a property isn't a good idea like it was before. Natural resources are free, limitless and harvested with no consequencies. Finding a stash of gold isn't that tempting too. Mass production, services kind off changed the amount of skills one needs in an average household and added complexity to it. Knowledge of how to get a clean water noticeably changed our ways. And perception of sex and family in different cultures drastically changed over time due to religion, law and science.
Whatever you do, don't ask for bloodletting if you get sick
Look into the death of George Washington. His doctor responded to what could have been a mild cold by taking a liter of blood 4 separate times from him. Washington very well could have recovered if he was just left alone.
Oh, and the doctor somewhat realized his mistake and tried to put some of the blood back after(!) Washington expired, with the logic that if blood loss killed him giving it back should revive him.
So yeah. Pumping blood back into a dead man. That was done on the founding president of the United States.
load more comments
(6 replies)
view more: next ›