this post was submitted on 09 Jun 2024
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xkcd

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https://xkcd.com/2943

Alt text:

I'm an H⁺ denier, in that I refuse to consider loose protons to be real hydrogen, so I personally believe it stands for 'pretend'.

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[–] arken@lemmy.world 46 points 1 year ago (1 children)

This one is easy. As we know from words like "photon" and "triumph", "pH" is actually pronounced "f".

[–] kralk@lemm.ee 2 points 1 year ago

I wanted to make that joke 😟

[–] randomaccount43543@lemmy.world 46 points 1 year ago (2 children)
[–] Kit@lemmy.blahaj.zone 28 points 1 year ago (3 children)

You need a 4 year degree to understand the wall of text in that explanation.

[–] SpaceNoodle@lemmy.world 28 points 1 year ago (1 children)

I was about to say "not really," but then I remembered that I have a couple of those, so yeah, probably.

[–] StupidBrotherInLaw@lemmy.world 3 points 1 year ago (1 children)

I really hope you're joking. It's written with high school level vocabulary at most.

[–] Speculater@lemmy.world 21 points 1 year ago (4 children)

It appears that an individual's heuristic analytical mechanism is engendering a subversion of their affective response system, resulting in epistemic determinations that lack substantiation from the linguistic parameters prevalent within the upper two quartiles of the demographic distribution.

[–] SpaceNoodle@lemmy.world 6 points 1 year ago

Thank you, Mr. Data.

[–] DScratch@sh.itjust.works 5 points 1 year ago

We’ve become exceedingly efficient at it.

[–] FiniteBanjo@lemmy.today 3 points 1 year ago

Exponents and Logarithms can be first taught in Middle School in many places, but sometimes get revisited during Calculus in AP High School or at University level.

[–] JASN_DE@lemmy.world 14 points 1 year ago* (last edited 1 year ago) (1 children)

Explainexplainxkcd.com when?

[–] Puttaneska@lemmy.world 35 points 1 year ago* (last edited 1 year ago) (2 children)

They told me at school that ‘p’ meant ‘negative log’. So ‘pH’ means ‘the negative log of the concentration of Hydrogen ions in moles/litre’.

pH 1 is 1 x 10^-1^ (strong acid)

pH 7 is 1 x 10^-7^ (neutral)

pH 14 is 1 x 10^-14^ (alkaline)

(Chemistry was a long time ago, though)

[–] Speculater@lemmy.world 34 points 1 year ago* (last edited 1 year ago) (4 children)

The xkcd breaks it down for us, basically we don't know because the person who coined the term never specified what it was. It's either: puissance, potens, or potenz. Which means potency in French, ~~Dutch~~ Danish and German, the three languages the scientists published in.

[–] Bumblefumble@lemm.ee 10 points 1 year ago (1 children)

Dutch and Danish are not the same language. So yeah, the Danish scientist published in Danish, not Dutch.

[–] Speculater@lemmy.world 2 points 1 year ago

Oh shit, my bad lol.

[–] Puttaneska@lemmy.world 2 points 1 year ago

Thank you. I think the decades-old chemistry-class flashback distracted me from thoroughly absorbing the full post!

[–] Dagwood222@lemm.ee 2 points 1 year ago

I was taught it meant 'potential' but that was 6th Grade in the US, so I guess it was all a lie.

[–] nodiet@feddit.de 2 points 1 year ago (1 children)

Can the term potency also be used to refer to the exponent in English? Because that is what is meant by the terms in the other languages and I haven't come across that usage of the word potency in English

[–] Speculater@lemmy.world 1 points 1 year ago

I think that's accurate, the exponent is what it's referring to, but the pedantic types are worried about what the p literally means.

[–] Wizard_Pope@lemmy.world 8 points 1 year ago (1 children)

You're missing a 4 in the alkaline line

[–] Puttaneska@lemmy.world 8 points 1 year ago

Thank you (4 now added!)

[–] overload@sopuli.xyz 26 points 1 year ago (2 children)

Isn't it Potential of Hydrogen?

[–] Dagwood222@lemm.ee 3 points 1 year ago (2 children)

That's what I was taught back in 6th Grade.

[–] overload@sopuli.xyz 11 points 1 year ago (1 children)

For what it's worth, my job is as an analytical chemist, dealing with pH readings every single day, and I've always thought this was correct.

[–] Dagwood222@lemm.ee 4 points 1 year ago

Are We Smarter Than A 5th Grader?

[–] callcc@lemmy.world 2 points 1 year ago (1 children)
[–] Dagwood222@lemm.ee 1 points 1 year ago

The funny thing is that I intellectually knew that there were plenty of non-English speaking scientists, but that knowledge was never considered.

[–] assassin_aragorn@lemmy.world 2 points 1 year ago

Something like that. It's an incredibly weird term.

I assumed it was rho (ρ) of hydrogen since rho is used for density...

[–] LodeMike@lemmy.today 11 points 1 year ago
[–] p5yk0t1km1r4ge@lemmy.world 7 points 1 year ago

It stands for peeps mcgoo

It stands for "piled".