this post was submitted on 17 Dec 2025
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Science Memes

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[–] leftzero@lemmy.dbzer0.com 37 points 6 days ago (4 children)

earth, fire, water, wind - it's not hard

Forgot the most important element of all: surprise.

[–] isolatedscotch@discuss.tchncs.de 20 points 6 days ago (1 children)
[–] Digit@lemmy.wtf 2 points 6 days ago

Brilliant.

My new desktop wallpaper. (*removes glare*)

[–] WhiskyTangoFoxtrot@lemmy.world 12 points 6 days ago (1 children)
[–] HeyThisIsntTheYMCA@lemmy.world 10 points 6 days ago (1 children)

surprise and fear. and a fanatical devotion to the pope.

[–] xyguy@startrek.website 8 points 6 days ago

Ah! I'll come in again.

[–] victorz@lemmy.world 4 points 6 days ago (1 children)

Hey now everyone, the order is:

  1. Water
  2. Earth
  3. Fire
  4. Air

Previously—on Avatar...

[–] WhiskyTangoFoxtrot@lemmy.world 5 points 6 days ago (1 children)
  1. Earth
  2. Fire
  3. Wind
  4. Water
  5. Heart
[–] Rekorse@sh.itjust.works 3 points 6 days ago

Captain planet! He's our hero! Gonna take pollution down to zero!

[–] jherazob@beehaw.org 2 points 6 days ago
[–] TankieTanuki@hexbear.net 12 points 6 days ago* (last edited 6 days ago) (1 children)

I have a degree in chemistry and I never had to do this. ~98% of the time you're working with the same 5 elements. Many elements on the table literally only existed for a microsecond in a lab decades ago.

[–] MeowZedong@lemmygrad.ml 3 points 6 days ago

Same on everything except my professors actually made us memorize ~15 because we used them so frequently in gen chem and they said it would help on timed tests.

Now I just keep a periodic table as my computer desktop and posted in the lab.

[–] Feathercrown@lemmy.world 10 points 6 days ago (1 children)

The fourth one is air. Wind is just the movement of air. You wouldn't say water is river

[–] ayyy@sh.itjust.works 0 points 6 days ago

Water is a river, and don’t call me Shirley.

[–] SnarkoPolo@lemmy.world 2 points 6 days ago

🎵 There may be many more yet But they haven't been discovered 🎶

[–] Fedizen@lemmy.world 1 points 6 days ago

I have not done a chem class where they didn't let you use the periodic tabke

[–] Digit@lemmy.wtf 0 points 6 days ago* (last edited 6 days ago)

Except, Mendeleev didn't invent it.

Just refined(?) it to a better(?) way than the other ways.

PS, I called one of my computers Mendeleev (big fan)... and this morning I was thinking about installing exherbo on it, with herbstluftwm. Have we got a complete periodic table for distros and another for window managers? ;D

[Edit, oh wait, oh. No. Mendeev died. It's Ferraris that sits in that corner now. Named after Gallileo Ferraris. Teachers didn't teach me that. I had to learn it myself, with an internet connection and a library card. School failed me. I wish the teachers had got me to memorise the periodic table. Instead, they said to ignore it, without saying to ignore it, but focussing on what felt like 99.999,999% only on hydrogen and carbon. And after they promised to teach it all, too. I'm like the guy in the picture, hands on hips, glaring, at the teachers and school system. ... Because they didn't get me to memorise the periodic table of elements.]

[–] FuglyDuck@lemmy.world 88 points 1 week ago (8 children)

It’s kinda sad.

I DM for my TTRPG group. One of the things I’m most proud of was a years long, multi-arc universe chock full off world building. (We were using the star drifter ruleset, though everything else was homebrewed.)

One of the the limiting factors for interstellar civilization is “luminium”; a faintly glowing semi-metal that’s a superconductor at room temperature and technobables its way to some kind of exotic energy source (I think I went with quantum tunneling from another universe or something.)

The problem with the stuff is that if it starts corroding it becomes unstable and explodes if conditions are right. The other problem is that the only known way to synthesize the stuff is lost to the Terranogene sphere. The only FTL is through wormholes that jump an enclosed spheres

That same society that figured out luminium also built “port ships” that were large dormant autonomous ships that had the portal generators on board.

Any how. Luminium’s atomic number is 1869 to honor this guy.

It was one of my favorite Easter eggs And they’ve still not noticed even though they now short hand it as “1869” (they didn’t know what it was called and that’s how they started identifying the stuff.)

Though im kinda proud of that campaign. I may have gone a little stir crazy during covid.

[–] I_Has_A_Hat@lemmy.world 5 points 6 days ago* (last edited 6 days ago) (1 children)

Luminium’s atomic number is 1869

Even in the realm of fantasy, that is absurdly high. Like, that is insane. That's like putting an artifact in your campaign and claiming it can heat up to 150 zillion kelvin. Even if you ignore how impossible it would be for something like that to exist, physics would have some strong words about how catastrophic that would be for everything around it. And by everything around it, I mean the entire fucking planet and probably a few neighboring ones.

I'm usually fine with hand waving away pesky things like physics and the laws of thermodynamics when it comes to fictional worlds, but holy shit there is a limit.

[–] FuglyDuck@lemmy.world 2 points 6 days ago

(Chuckles in evil DM)

Yes. I know it’s absurd. (The island of stability is only predicted to go out to what? 120 something? And then isn’t really stable in a practical sense.)

That's like putting an artifact in your campaign and claiming it can heat up to 150 zillion kelvin.

This gives me…. Ideas. I know the math breaks down before the big bang, but if anything could get that hot…I would imagine pre-expansion universe. Now how to stuff them in one?

[–] Warl0k3@lemmy.world 61 points 1 week ago (1 children)

Sir this is a Wendy's.
...
And that was really cool so your meal is free, please go on this sounds like a super fun campaign.

[–] FuglyDuck@lemmy.world 25 points 1 week ago

it was a blast. it was flexible enough that they could derail to their hearts content without me running out of material, the back story to the history was that eventually the first large and successful colonization effort started with "Solarians" who were basically pacifist-adjacent scientists and academics tired of our bullshit and settled places starting with the moon, then going to mars, then to Jupiter's orbit, then finally off to Alpha Centauri (from where they launched the first batch of forty-some portships that they'd pop off to to check on thinks and then go back to Centauri.)

meanwhile the people left on earth went the way things go, and it turned into a cesspit, eventually some dumbass using antimatter as a bomb, leading to the second waive of human colonization and Earth sterilized. (They eventually take over the portships they could find, and built the Stellarian Empire. AKA the badguys.

the Empire and Solarian Diaspora eventually start drifting apart with still-basically-human abilties, but some are furies and some are scalies and some have somekinda weird symbiotic relationship with algae in their brains that allows them to retain the memories of their parents and everyone the algae has been in.

meanwhile back on earth, it turns out Earth was returned to a more primordial state and is a stuborn little planet doing the whole life-thing again. Certain asshole-solarians decide to flee the empire, and created a world-religion that saw Solarians as divine messengers and Stellarians as demons, etc, shaping Itrayan society; starting from around their bronze age. the whole point was to unleash the Itrayans as some sort of hyper-zealot warriors. (the solarians kept cloning themselves and used synthetically-created algae for memory transfer.)

Eventually we get to a relatively modern age (slightly ahead of today, with neural implants and a few other odds and ends.) when Stellarians show up on a portship, setting off a war that sees the empire fracture into a dozen fiefdoms and several more political alliances. that war was fought with Augments who were genetically engineered and implanted with cybernetic whosewhats. These augments from bothsides were, when the war was finally ended, stuffed into cryo (under false pretenses) and launched off into the deep of space.

My players wake up, refurbish the broken down and basically derlict ship, find a planet and get resources before they die and all that for the first campaign arc. I still laugh that their engineer guy who had an entire manual for the ship in his starting gear, sold the manual for a little extra energy. Then he kept fighting with the ships automated repair system that kept putting bulkheads that were located in really inconvenient places back in. (Yes. I know how to screw with my party, lol. the manual's instructions were basically "tell the AI to update the blueprints." which was also how they were meant to discover the ship had an AI to handle some very annoying tasks like life support.)

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[–] cRazi_man@europe.pub 59 points 1 week ago (13 children)

Why is this something widespread? I did chemistry up till A-levels and no one ever asked me to memorise the periodic table and no one gave a shit about committing it to memory. WTF is going on.

[–] dejected_warp_core@lemmy.world 11 points 6 days ago

IMO, some people think that being educated means achieving mountains of rote memorization, and little else. Some of those people also become teachers.

This may also be why there's a big row every time someone changes what algorithms are taught in basic maths (in the US, anyway).

[–] The_v@lemmy.world 11 points 6 days ago

My wife has a couple graduate degrees on this subject. This is one that I got to be the unwilling editor on her papers for.

Its a lack of understanding how students need to learn the information: memorization by usage versus memorization by rote.

Memorization by rote: This is the old school method of teaching. You memorize random facts figures with no context or usage. Its a bit of standalone information that is often not useful. Memorization by rote leads to kids that can say all of the letters but not recognize the symbols or associated them with sounds and words.

Memorization by usage: This is a much more effective method to teach. Its also much harder. This requires teaching the concepts and systems and linking the information together. You memorize the same information by repeated usage but it's in context. It takes a ton more skill to teach this way because you have to engage the student through the entire process, repeatedly.

[–] Omgpwnies@lemmy.world 3 points 6 days ago

I remember having to memorize some amount in like grade 10 science, I think the first 10 were required - but only the name, symbol, and in order. We didn't have to memorize any of the other details and on tests we either had a full table to work from or the test would provide the relevant information for the elements needed.

I think the memorization part was more a brain development excercise for kids, every class had some sort of "memorize these few things" up until grade 12 or so.

[–] Frostbeard@lemmy.world 2 points 6 days ago

I did my master in physical chemistry. The pretty advanced periodic table the university bookstore sold was allowed at exam. On the other hand I memorized amino acids for some reaso

oh i have a good explanation for that. the university i took chem at sucks.

[–] Fedizen@lemmy.world 1 points 6 days ago

I have no idea. I did chem in college and tests included a printout of the periodic table.

[–] Bronzebeard@lemmy.zip 38 points 1 week ago (5 children)

It's common in the US. Our priorities are... Misaligned.

[–] Dagnet@lemmy.world 5 points 6 days ago (1 children)

Common in Brazil, fucking hated it

[–] marcos@lemmy.world 1 points 6 days ago (1 children)

It hasn't been common in Brazil for many years already.

Things change.

[–] Dagnet@lemmy.world 2 points 6 days ago (1 children)

Then I envy you guys, back in my time there were a ton of 'songs' to memorize all the important elements. Hated chemistry because of it.

[–] marcos@lemmy.world 2 points 6 days ago

Oh, I memorized most of it too. And it has always been almost completely useless.

But even though kids this days are spending almost all their time at school, this is something they are not losing time with.

[–] pbjelly@sh.itjust.works 3 points 6 days ago

Omg my high school had 2 chem teachers and both were insane and took the class too seriously. The first week was making us memorize the elements and being drilled in almost daily tests to see if we could write them down.

By the end of the week, my teacher said if you didn’t have at least an 8/10 from her quizzes, to basically change classes. She and the other teacher often went overtime and ignored the period ending bell which pissed off a lot of other teachers.

The periodic table of elements was on a paper that she’d roll up during our quizzes and for the rest of the year, we had to take our quizzes with the assumption that we’ve memorized the tables and could do equations and conversions with no references. The class had to be graded on a curve since most of us 16 year olds had other school work to focus on.

In the end, I think no one from those classes ever became a chem major. It certainly made me hate it.

[–] CosmicTurtle0@lemmy.dbzer0.com 24 points 1 week ago

Our education system values rote memorization over actually learning something. So instead of teaching you how to use the periodic table, they teach you "The element of Hydrogen has an atomic mass of 1" etc.

A few teachers who actually give a fuck will do both, but they are required to teach the test for funding. Because that's how they are graded.

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[–] doingthestuff@lemy.lol 16 points 1 week ago (1 children)

Yeah this is exactly why I mentally checked out of chemistry. Memorization was being pushed harder than conceptual understanding.

[–] Fedizen@lemmy.world 1 points 5 days ago

What did you memorize?

I recall most of chem being "here's a rule that applies to a very narrow subdomain but literally nothing else." So we learned a lot of mostly useless rules and then we'd do a lab where most the chemicals didn't use any of the same interaction rules or naming conventions as each other. Or here's a lab test we can use only on chemicals that mix perfectly and don't separate, cloud, etc.

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[–] Blackmist@feddit.uk 20 points 1 week ago (4 children)

Our chemistry teacher made us memorise up to Argon with a song, that was literally just him singing the 1/2 letter names of all the elements. HHeLiBeBCNOFNe...

It was on a poster on the wall in every lesson. It was in the textbook. It was printed on the exam papers.

I've no idea why he tried to make us do that, and the annoying thing is I can still remember a good chunk of it 30 years later. I could have been using that chunk of my brain for something useful.

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[–] Prunebutt@slrpnk.net 20 points 1 week ago* (last edited 1 week ago) (2 children)

I had to memorize every element until Radon in 2nd Semester. Just position and therefore the amount of protons (the "order number"? idk in english), but still: such a waste of time. When we asked "y no table of elemens?", our prof said that we should be glad that we had a system to memorize.

I asked a chemistry teacher about this and he was baffled that we had to do this.

The best part? I wasn't even studying chemistry! But rather general "engineering science" which had a lot of focus on material science. But chemistry was my least favourite science. I wanted all engineering but chemisty. ;_;

[–] Digit@lemmy.wtf 1 points 6 days ago (1 children)

Chemistry was my most favourite science. I wanted all chemistry, but industry. ;_;

[–] Prunebutt@slrpnk.net 1 points 6 days ago

Cats like mice. I don't. ¯\_(ツ)_/¯

[–] Zagorath@aussie.zone 16 points 1 week ago (1 children)

the "order number" idk in english

The English term is "atomic number".

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