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Questions tagged [terminology]

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

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Origins of molecular orbital diagrams?

Does anyone remember who proposed molecular diagrams for simple molecules as taught today in most general chemistry texts? I cannot access Hund's original article, however, Mulliken's early articles ...
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50 views

When did photos start?

When was the first photos taken with the first camera? Some sites states that the first photos were taken in 1826 but some sites states that the first photos were taken in 1827. I want to know the ...
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2answers
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What is the origin of “normal” in normal coordinates and normal modes?

I am trying to understand why vibrational modes of polyatomic molecules are called "normal" mode of vibrations and with corresponding normal coordinates. What is the origin of the term normal here? I ...
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1answer
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“Species” and “terms” meaning polynomials and monomials

I found in some old Latin texts and their translations that polynomials were once called "species" (if I understand correctly that they meant the same thing, but it looks like it). And their ...
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1answer
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Who coined the term “immune system”?

Who coined the term "immune system"? The OED lists the following as its earliest example of the term "immune system": 1943 Science 30 Apr. 406/1Complement..is removed by the addition of an ...
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1answer
73 views

What does Rousseau mean by “Baroco des Logiciens”?

In the Wikipedia "Baroque" article I found this quote from "Dictionnaire de Musique" by Jean-Jacques Rousseau: BAROQUE. Une Musique Baroque est celle dont l’Harmonie est confuse, chargée de ...
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Where does the prefix “super” from “supersymmetry” come from?

Where does the prefix "super" from "supersymmetry" come from?
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Kronecker's aphorism [duplicate]

The common translation of Kronecker's "Die ganzen Zahlen hat der liebe Gott gemacht, alles andere ist Menschenwerk" is something like "God made the integers, all else is man's handiwork." But I have ...
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How did the terms “center” and “centralizer” come up in group theory?

Usually the word center means the center of a circle. I have encountered the word center in group theory, but do not see any connection with the center of a circle. I think the history of group theory ...
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What is the etymology of the term “mode” in statistics?

I saw that the word "mode" means "popular" in French, and I was wondering if this might be the etymology of the "mode" of a population in stat? I was wondering if anyone had sources for early use of ...
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120 views

When and why did people stopped using “natural philosophy” term and started using “science”?

Previously what is called now "natural sciences" was called "natural philosophy". I'm interested in details, what was so wrong with the name "philosophy" so the name "science" became preferred?
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What is the origin of “law of excluded middle”?

Reading an article I have stumbled across the concept of law of excluded middle. Wikipedia mentions that original expression is principium tertii exclusi which ...
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What does the “G” for the similitude groups stand for?

When we have a bilinear symmetric/ bilinear anti-symmetric/hermitian form $b$ on a real/complex vector space $V$, one can consider the group of invertible matrices $A \in GL(V)$ which respect $b$, ...
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220 views

Why statistical moments are called moments?

According to the Jeff Miller's Earliest Known Uses of the Words of Mathematics "Moment was taken into Statistics from Mechanics by Karl Pearson when he treated the frequency-curve (or observation ...
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1answer
124 views

History of group theory character tables (as used in physics and chemistry)

Does anyone know who started using the symbols A, B, E, T (First column, left) for showing irreducible representations of symmetry groups? In older maths books I see capital gamma. Herein A= totally ...
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1answer
145 views

Etymology of Some Terms Used in Ratio and Proportion in Old Algebra Textbooks

In older algebra textbooks for high school (mainly 19th century) four properties of ratio and proportions were used. The properties were Invertendo, Alternendo, Componendo, and Dividendo. This ...
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Where does the letter S in “$S$-units” and in localization $S^{-1} R$ come from?

In number theory, we may encounter the notion of $S$-unit, $S$-integer, etc. where $S$ is a finite set of prime numbers (for simplicity). For instance, if $S = \{2,3\}$ then the $S$-integers are the ...
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78 views

First appearance of the term sinus cardinalis

Who introduced the term sinus cardinalis? I do not mean the abbreviation sinc, which was introduced 1952 by Woodward.
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337 views

How influential was the Kerala school to European development in Calculus?

Did it influence the work of Newton or Leibniz, i have often heard that Europeans "stole" calculus from the Kerala school, these are views often parroted by Indian nationalists, but how accurate is it?...
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Who coined the term “uniform” as in “uniform distribution”?

During the late 16th century and early 17th century, published work about probability theory (e.g. Liber de ludo aleae by J. Cardan published in 1663 but writen around 1564) studied dice games using ...
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Riemann's moduli and Dedekind's modules: any connection?

The concept of a moduli space goes back to Riemann's count of $3g-3$ (or $3p-3$, in older notation) coordinates to describe Riemann surfaces of genus $g$ when $g > 1$. See the bottom of p. 33 here, ...
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1answer
63 views

Why are microcanonical, canonical and macrocanonical ensembles called that way?

In statistical mechanics, why microcanonical, canonical and macrocanonical ensemble are called that way? Is there any reason according to the size of the system they can describe properly ( I don't ...
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Indiana Pi Bill: Other attempts to establish mathematical truth by legislative fiat?

Wiki: The Indiana Pi Bill is the popular name for bill #246 of the 1897 sitting of the Indiana General Assembly, one of the most notorious attempts to establish mathematical truth by legislative ...
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Who coined the term ''Born's rule''?

Who assigned the term ''Born's rule'' to the statement that the measurement of a quantum observable is one of its eigenvalues, with a probability given by the square of the coefficient in the spectral ...
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1answer
144 views

Earliest known usage of letter gamma “Γ” for reducible representation in group theory

Does any know the earliest known usage of the Greek letter gamma for showing a reducible representation of a group? This symbolism is commonly used in character tables in chemical applications of ...
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1answer
74 views

References about the the development of the concept of mechanical work

I'm looking for references about how the concept of mechanical work ("$\boldsymbol{F}\cdot\mathrm{d}\boldsymbol{r}$") or the concept of mechanical power ("$\boldsymbol{F}\cdot\boldsymbol{v}$") came ...
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1answer
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Who invented the term “Kuhn loss”?

This term has been discussed on this forum, e.g. under Examples of Kuhn loss?, and has been attributed to Kuhn himself. The term refers to the loss of explanations and predictions of the prior ...
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Who was the first to use the “does not exist” sign ∄?

Who was the first to use the "does not exist" sign ∄? I'm aware that Giuseppe Peano originated serifed ∃ and, moreover that Whitehead and Russell repurposed Peano's serifed ∃; I'm also aware that ...
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1answer
55 views

Who coined the term “degenerate star”?

I'm trying to find a good source for the definition of degenerate matter to differentiate it from Fermi gases. For my research a good section on history would be nice. This question is more ...
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261 views

Why is kinetic energy denoted by the letter $T$ in quantum mechanics?

I think the question is self-explanatory but stackexchange requires me to write something here.
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238 views

Why is the azimuthal quantum number so named?

The name "azimuthal quantum number" is often used for the total orbital angular momentum quantum number $\ell$ in an atom. What is the origin of this name? It makes no sense to me, since the usual ...
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1answer
36 views

Doctrine of the sterilazio magna

What was the "doctrine of sterilazio magna"? Example from 1912 article about the variability of drug effectiveness: "Although the doctrine of the sterilazio magna has only been urged against the ...
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1answer
394 views

Who Invented The Number Line?

Recently, I came across this article and wondered if there really is a definitive answer to the question of who invented the number line?
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Who coined the term “iff” for “if and only if”?

The OED's entry for "iff" lists this as the earliest usage: 1955 J. L. Kelley Gen. Topol. vii. 232: "F is equicontinuous at x iff there is a neighborhood of x whose image under every member of ...
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What was the significance of Eisenstein's discovery of invariants?

I am trying to decipher a portion of James Joseph Sylvester's 1869 address entitled "The Study That Knows Nothing of Observation", which, among other things, surveys the landscape of 19th century ...
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3answers
117 views

Who are “analysts” and “synthesists” in mathematics?

What is the difference between the terms "analysis" and "synthesis" used in a mathematical context? For example, Hawkins's Emergence of the Theory of Lie Groups p. 3 says that Klein and Lie were ...
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Who assigned the name “work” to the quantity $\int F\,{\rm d}r$?

I am looking into the historical perspective of how the concept of work and energy came about: who coined the terms "mechanical work" and "energy", and how the concept evolved over time. I know that ...
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Gentzen and computer science

This is a cross-post from mathstack: https://math.stackexchange.com/questions/2584003/gentzen-and-computer-science?noredirect=1#comment5333947_2584003 I would like to learn a bit about the ...
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131 views

What is the name given to the principle that guides mathematical conventions like the product of two negative numbers is positive

I recall that I read---in a book by Constance Reid---of a named principle that guided the arithmetic conventions that applied to operations on newly discovered mathematical objects. For example, when ...
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2answers
182 views

Why is an inch (in the English Imperial system of measure) as long as it is?

My question is about the length of the inch which is a subunit of the Imperial foot. Is there any connection whatsoever between the Imperial system for units of measure and the dimensions of the ...
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History of mesoscopic physics

Mesoscopic physics is a topic of major research as nanotechnology becomes an important hot topic. There doesn't seem to be a major writing about the history of mesoscopic physics. I know a little ...
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Timeline of mathematical foundation?

As it is globally known that set theory as a foundation of mathematics, although in the beginning we didn't call it "Set" rather group of elements. For example - set of [1(banana) + 2(apple)+1(cow)] =>...
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Who was the first individual that used the word “torus” to refer to $\mathbb{S}^{1} \times \mathbb{S}^{1}$?

Further, I believe that the idea to call it thus had to do with its resemblance to the "torus" in the base of some Greek columns of old: What do you think of this hypothesis of mine? Thanks in ...
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79 views

Who was the first to use the term field in physics?

Faraday, after drawing his lines of force in 19th century, is normally credited as the first to use the term field in physics. But... ... was not the term field used in the context of gravitational ...
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140 views

Origin of the terminology “trace operator” related to boundary-value problems for PDEs

Important results in the theory of PDEs regarding boundary-value problems are trace and extension theorems. Since the trace operator (not to be confused with the trace from linear algebra) essentially ...
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1answer
168 views

Why is it called the butterfly effect?

The pop-sci answer is that Lorenz characterised chaotic atmospheric dynamics with the hypothetical example of a butterfly's flapping wings changing whether a tornado results. However, since butterfly-...
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249 views

origin of the terms “domain” and “range”?

A 1929 paper of Chittenden contains the following sentence (about the derived set operator on a space $P$): “Thus the relation $E' = K(E)$ defines a single-valued set-valued set-function, whose ...
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Why is $\eta$ used in $\eta$-conversion?

In lambda calculus there are three types of reduction, $\alpha$-renaming $\beta$-reduction $\eta$-conversion The use of $\eta$ in $\eta$-conversion seems rather strange to me. Since they already ...
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37 views

First use of the term/name “curved exponential family”?

Question: What was the first recorded use of someone calling exponential families (in probability/statistics) for which the dimension of the natural parameter space is strictly less than the dimension ...
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1answer
195 views

Name of the Gamma function

The Gamma function for positive arguments can be defined with the integral $$ \Gamma(\alpha) = \int_0^\infty x^{\alpha-1} e^{-x}\,dx $$ The function $ x^{\alpha-1} e^{-x} $ is called the Gamma ...