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32 replies

discuss.tchncs.de

Fair, but also, you could look up XKCD comics by their name or transcript and link to them directly when you come across them.

1
lemmy.world

Søren Sørensen, who came up with the concept of pH, wasn't clear on what the letter "p" meant. It does involve powers of 10 and can be measured using electrical potentials, so the best guesses are "potential" or "power", or several words that mean "power" in other languages and also happen to start with "p". Bottom line, we don't know, and unless somebody discovers more of Sørensen's notes or a way to speak with the dead, we never will.

29

That's why I was careful to say, "speak with dead," (after the D&D spell) implying a conversation.

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lemmy.sdf.org

That's actually an interesting one.

The 'p' could have a different meaning for a variety of languages. 'Puissance' in French, 'Potenz' in German, 'potential' or 'power' in English, 'pondus' or 'potentia' in Latin, or 'Potens' in Danish (probably the Danish one originally, since it was a Danish chemist who first introduced the measurement).

It's very fun that because of the vagueness, various languages can have its meaning directly translated to their own.

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mmddmmreply
lemm.ee

All those words have the same meaning.

7
lemm.ee

Protons. As in protons, How many. On a weird logarithmic scale with 7 in the middle, of course.

19

The p is for potential, as in potential Hydrogen. pH can be used to establish a concentration of protium (H+) in solution. When learning about pH in school, we used pOH (potential hydroxide) as well to speak about bases.

6

Easy. Pico Henry. Not sure why chemists are so concerned with such a small amount of magnetism though...

15

I was taught potenz in my school textbooks. potenz Hydrogen

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Owlreply
mander.xyz

Doesn't it mean "potential" ?

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