Questions tagged [terminology]

For questions about terms, definitions and related concepts used in science and mathematics.

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3 votes
0 answers
283 views

History of the Wreath product

Why is the wreath product so named? If possible, please provide a citation.
8 votes
1 answer
8k views

Who invented the mole?

Who invented, or first used, the concept of the mole? I did my own research and the closest I came was Avogadro’s constant, which was made not by Avogadro but rather by Jean Baptiste Perrin. However, ...
21 votes
1 answer
8k views

Why did angular momentum get the letter L

Note - this question was inspired by this questions on physics.SE. Many (most) physical quantities are denoted with a single letter - latin or greek. For many, the letter chosen makes sense: $t$ for ...
11 votes
2 answers
571 views

What's the etymology of an engineering/software bug?

I read the Wikipedia page on Software bugs. It does have a section on its etymology. Albeit interesting it doesn't answer my question but merely notes that the term bug was used in 1878: Use of the ...
3 votes
1 answer
265 views

Origin of "world-line?"

The term "world-line" is a little odd in English. Google n-grams shows the English term going back to 1915 in the books google has scanned. Is its origin in Minkowski, Raum und Zeit (1909), ...
9 votes
1 answer
2k views

When and by whom was the term 'momentum' introduced?

We know that up to 1726, when the third edition of the Principia was published, the name for $m\vec v$ was: quantitas motus. Do you know who substituted that with another Latin word: 'momentum'?
7 votes
1 answer
384 views

When was the term 'elementary function' first coined and who did it?

The definition of what an elementary function is is quite arbitrary (see what math.SE has to say about it) and it makes me wonder why hasn't the mathematical community added other rather natural ...
7 votes
1 answer
1k views

How did the 'Poincaré patches' get their name?

De Sitter space and Anti de Sitter space are two of the most important solutions to the Einstein field equations. One famous method to obtain these spacetimes is to consider a $N$-dimensional ...
6 votes
3 answers
429 views

Is "de" in "de Morgan" supposed to be capitalized or not?

I am currently writing about the "de Morgan's laws" and have seen both "de Morgan" and "De Morgan." Which of these is correct?
5 votes
1 answer
172 views

What's the origin and meaning of the adjective "free" in mathematics?

It's pretty common to call a group, ring or module free when it has a 'basis', but unlike other mathematical definitions whose names can be easily related to the concept they describe (e.g. the ...
10 votes
1 answer
1k views

Where did the naming structure of particles come from (suffix -on)?

I was looking at a list of particles, and I noticed that many of them ended in -on. Proton, electron, neutron, lepton, etc. Is there a historical (or linguistic) reason behind this naming structure?
23 votes
4 answers
1k views

Did ancient/medieval non-European cultures have a concept of energy? If so, what are the similarities and differences to the modern concept?

For example, do we find something related to the modern energy concept in Ancient China, Ancient India, or the Islamic Golden Age? Among "similarities and differences", conservation is obviously ...
9 votes
1 answer
151 views

What is the reason for the 'electromagnetism terminology' when discussing the conserved quantities found through Noether's theorem?

In (theoretical) physics, it is customary to describe the system under consideration in terms of the Lagrangian. One of the major advantages of this approach is that it allows us to analyze the ...

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