this post was submitted on 14 May 2024
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Science Memes

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[–] cobra89@beehaw.org 35 points 6 months ago (1 children)

Id love to see the math on the amount of iron in a person's blood, because I find it HIGHLY questionable that there's enough iron in only 300 people to make a full iron sword. I'm too lazy to do it myself though.

[–] Bezier@suppo.fi 19 points 6 months ago (1 children)
[–] GoodbyeBlueMonday@startrek.website 13 points 6 months ago (1 children)

You're both in luck! Someone else linked to an article that breaks down how it could work in reality: https://startrek.website/comment/9430643

[–] DudeDudenson@lemmings.world 9 points 6 months ago (3 children)

All three of you are in luck! Someone made a video attempting to actually forge a sword this way!: https://m.youtube.com/watch?v=dQw4w9WgXcQ

XcQ

Gotta hide it better than that chief

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[–] vk6flab@lemmy.radio 34 points 6 months ago (7 children)

These are the required elements for making steel:

  • Iron
  • Carbon
  • Manganese
  • Chromium
  • Phosphorus
  • Sulphur
  • Nickel
  • Molybdenum
  • Titanium
  • Copper
  • Boron

Source: https://www.cliftonsteel.com/education/11elementsfoundinsteel

So, iron is only step 1. Humans are carbon based lifeforms, so I'm guessing that carbon is also sorted, that's step 2.

There's plenty of other elements in the human body, like phosphorus and sulphur, but I'm guessing that it's going to take more than 300 adults.

Source: https://sciencenotes.org/elements-in-the-human-body-and-what-they-do/

Source: https://sciencenotes.org/wp-content/uploads/2019/02/PeriodicTableHumanBody.png

[–] habitualTartare@lemmy.world 30 points 6 months ago (3 children)
[–] techognito@lemmy.world 13 points 6 months ago

This is extremely helpful, and fits perfectly into my secret plan

Secret planI will use this info as background for a BBEG in my TTRPG game

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[–] general_kitten@sopuli.xyz 20 points 6 months ago

Steel requires only iron and up to about 2% carbon

Rest are minor alloying elements used mainly in modern steel alloys to improve the steel beyond what just carbon steel could do like for example stainless steels

[–] sushibowl@feddit.nl 19 points 6 months ago (1 children)
  1. Your link says these are elements commonly found in steel, not that they are all required. In fact it says of phosphorus and sulphur that they are generally undesirable.
  2. We don't need to make a steel sword, an iron sword could do.

Either way you would definitely need carbon, but as you say that's pretty easy. I don't think any of the other elements are absolutely required.

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[–] ColeSloth@discuss.tchncs.de 5 points 6 months ago (3 children)

Those are all of them, but that's for a lot of different types of steels. You don't have to have all of those metals to make steel. You really just need iron and a tiny bit of carbon. A few of your ingredients help with purity, and the rest are additives for different steel properties you may want. Like a touch of nickel for stainless steel.

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[–] barsoap@lemm.ee 3 points 6 months ago

You only need iron and carbon the rest is already alloyed steel. You can definitely make a good blade out of only iron and carbon, it won't be stainless, it might be difficult to harden just right, but it will be flexible and hold a keen edge if forged right. The smiths of ole dealt with nastier steels containing all kinds of things making it worse, not better (such as excessive amounts of sulphur and phosphorus) so I'd say they'd manage.

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[–] MossyFeathers@pawb.social 29 points 6 months ago (2 children)

Listen. If they used surplus blood to do this (blood that was expired) and then held a raffle at the end of each year where all blood donors were entered to win a knife or sword made from the expired human blood iron, I bet they'd see blood donations skyrocket.

[–] fossilesque@mander.xyz 19 points 6 months ago (2 children)

Somebody call NileRed asap

[–] nawa@lemmy.world 7 points 6 months ago (1 children)

This is more of a NileBlue job though

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[–] dejected_warp_core@lemmy.world 4 points 6 months ago

After completing all these steps, the result was a little anticlimactic and disappointing. But still, I realized there was one thing left to do: taste it.

[–] JovialMicrobial@lemm.ee 6 points 6 months ago

I want The Red Cross to hire you for marketing asap so this can actually happen.

[–] KillingTimeItself@lemmy.dbzer0.com 28 points 6 months ago (3 children)

ok, but humans also regenerate blood, very slowly but it does happen. So theoretically, you could contract your family members to draw blood to be used to make a longsword out of your family's bloodline. And have it become an heirloom.

[–] daltotron@lemmy.world 7 points 6 months ago (1 children)

imagine, over the centuries of blood donation, the sword slowly grows from a knife, into an absolutely huge dragonslayer behemoth

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[–] 9point6@lemmy.world 20 points 6 months ago (2 children)

You could also get a big sword-shaped ice cube mold, a chest freezer and probably not even a whole enemy.

You would have to do battle in freezing climates too though in order for it to remain physically effective

Though I imagine the psychological effectiveness might persist a bit longer

[–] fossilesque@mander.xyz 12 points 6 months ago (1 children)

I'd suggest a warhammer mold, just for stability.

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[–] Neato@ttrpg.network 4 points 6 months ago

Mythbusters did this on their first episode: ice bullet. I think a sword might also be too brittle unfortunately.

[–] Wirlocke@lemmy.blahaj.zone 18 points 6 months ago (2 children)

Listen there's definitely enough carbon in the body to boost that into a steel sword.

If we can make diamonds out of corpses, we can make steel.

[–] Kolanaki@yiffit.net 5 points 6 months ago (2 children)

Hold up... Wouldn't a diamond sword be better than a steel one?

[–] milicent_bystandr@lemm.ee 10 points 6 months ago (1 children)

Too brittle, I think.

For ceremony, though, perfect!

[–] merc@sh.itjust.works 8 points 6 months ago (2 children)

Way too brittle if it was the weight of a typical sword, and way too heavy otherwise.

On the other hand, the cutting edge of that sword would be pretty amazing while it lasted.

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[–] Megaman_EXE@beehaw.org 13 points 6 months ago (2 children)

I was curious how long it would take to make a sword out of your own blood. If my math was correct(it probably isn't lol) the human body contains around 4.7 to 5.5 liters. And then you can apparently donate like 470 millileters every 8 weeks.

So take 4.7(assuming the smallest people) X 300 = 1410 L total blood

1410(total needed) / 0.47(donation amount) = 3000 donations X 8 weeks = 24,000 / 52 = 461.54 years

[–] fossilesque@mander.xyz 10 points 6 months ago

New mythology curse just dropped.

[–] Dave@lemmy.nz 6 points 6 months ago* (last edited 6 months ago) (3 children)

And then you can apparently donate like 470 millileters every 8 weeks.

Safely. You could probably speed it up a bit if you have a higher risk tolerance.

[–] Megaman_EXE@beehaw.org 4 points 6 months ago (1 children)

True! I would assume a larger person would be able to give up more at once, too.

[–] Dave@lemmy.nz 4 points 6 months ago (1 children)

A larger person might want a larger sword, though!

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[–] HexesofVexes@lemmy.world 11 points 6 months ago* (last edited 6 months ago) (3 children)

So about 3150 pints of blood (10.5 being average for an adult).

Sounds doable XD

Edit: New ethical dilemma just dropped - kill 300 to forge the sword, or deny 3150 people blood in an emergency to forge the sword...

[–] sylver_dragon@lemmy.world 8 points 6 months ago (1 children)

New ethical dilemma just dropped - kill 300 to forge the sword, or deny 3150 people blood in an emergency to forge the sword…

porque no los dos

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[–] JoMiran@lemmy.ml 8 points 6 months ago

New ethical dilemma just dropped - kill 300 to forge the sword, or deny 3150 people blood in an emergency to forge the sword...

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[–] galoisghost@aussie.zone 6 points 6 months ago

You know there’s a writer reading this meme somewhere: here; where ever it came from; where ever it will be reposted; and adding it to the story they are working on. Wonder where we’ll come across it first?

[–] pleb_maximus@feddit.de 4 points 6 months ago
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