# What is Explanation: Definition and 975 Discussions

An explanation is a set of statements usually constructed to describe a set of facts which clarifies the causes, context, and consequences of those facts. This description may establish rules or laws, and may clarify the existing rules or laws in relation to any objects, or phenomena examined.Explanation, in philosophy, is a set of statements that makes intelligible the existence or occurrence of an object, event, or state of affairs. Among the most common forms of explanation are causal explanation; deductive-nomological explanation, which involves subsuming the explanandum under a generalization from which it may be derived in a deductive argument (e.g., “All gases expand when heated; this gas was heated; therefore, this gas expanded”); and statistical explanation, which involves subsuming the explanandum under a generalization that gives it inductive support (e.g., “Most people who use tobacco contract cancer; this person used tobacco; therefore, this person contracted cancer”). Explanations of human behaviour typically appeal to the subject’s beliefs and desires, as well as other facts about him, and proceed on the assumption that the behaviour in question is rational (at least to a minimum degree). Thus an explanation of why the subject removed his coat might cite the fact that the subject felt hot, that the subject desired to feel cooler, and that the subject believed that he would feel cooler if he took off his coat.

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1. ### I Dirac delta function confusions

I have read lots but still, there're some really unproductive explanations of dirac delta function. So hopefully, you can explain it by following my arguments and not formal definition because I've read it all. It's shown to be as ##\delta (x) = 0## when ##x \neq 0## and ##\delta (x) =...
2. ### B Time Dilation: Is This a Reasonable Explanation?

I thought of this description recently and I think it's pretty intuitive, but I've gotten some side eye telling it to friends and family (maybe because relativity is screwy, maybe because I'm confused, maybe both?) so I want to get some confirmation that it's reasonable. Here goes: If you're in...
3. ### B Basic Angle Explanation for Statics

My textbook introduces this angle concept really early on and I still don't understand it. It just shows that a normal to a line and some other random angle shown is the same. I don't see any transversal angles or anything. Where did they get the secondary line to form theta for the normal line?
4. ### Fourier's Law of Heat Transfer: Conceptual Explanation

Hello, I'm looking over some old school notes and re-learning some basic heat transfer. I have known Fourier's Law (1D: ##q = k\frac{dT}{dx}##) for a long time, but when I look at it now I find it strange that heat flux is inversely proportional to the length of the conductor. I would think...
5. ### B My paraphrased explanation of the Twin Paradox

So I've been trying really hard to understand the theory of relativity at its most basic level lately, and recently I dove down the rabbit hole of the Twin Paradox. This has led me through a series of youtube videos, each one claiming to present a different solution, explain why the other...
6. ### I Explanation of all "its linearly independent derivatives"

I'm studying Differential Equations from Tenenbaum's, and currently going through non-homogeneous second order linear differential equations with constant coefficients. Method of Undetermined Coefficients is the concerned topic here. I will put forth my doubt through an example. Let's say we are...
7. ### B Matter-antimatter asymmetry - a simple explanation?

Dear collegues, I would like to share and discuss a simple explanation to the matter-antimatter asymmetry. Maybe this explanation is too simple, but your feedback is appreciated. I would like to start with what inspired me to this idea. The Hawking radiation. You know the event horizon of a...
8. ### I Looking For Explanation of New Interferometer Article

https://physics.aps.org/articles/v15/162 Looking for a layman's summary of this article. If I spent a couple of hours maybe I could do it. Then again, maybe not.
9. ### B Gravitomagnetic explanation of Dark Matter

I was reading a thread on my phone that was reviewing a paper about DM being explainable by gravitomagnetic effects. Now I can't find it in any search. It was on its fourth page - so at least 80 posts over at least two years. Anyway, what I wanted to ask was for a description that a layperson...
10. ### Request a Diagram or Explanation to wire 220v-50/60hz UK 3-wire device

Planning a kitchen renovation. We've found a SIEMENS iQ700 glass downdraft extractor [model LD98WMM60B] that we'd love to use. It, of course, is only available in EUROPE. EAN code : 4242003907122 Connection rating : 300 W Fuse protection : 10 A Voltage : 220-240 V Frequency : 50; 60 Hz Plug...
11. ### Doubt In Explanation of Proof of Chain Rule

In Chapter 3 of Thomas’s Calculus, they give the following proof of the Chain Rule. After the proof, the text says that this proof doesn’t apply when the function g(x) oscillates rapidly near the origin and therefore leads delta u to be 0 even when delta x is not equal to 0. Doesn’t this proof...

36. ### Classical explanation for microwave door shielding

What is the classical explanation for why the microwaves won't pass through the microwave door?

Thx !
38. ### What is the method for calculating the angle Θu in compressible flow?

Hello good people! I'm studying the compressible flow and the book refers to this example. I can't understand how does it calculate the angle Θu? In the previous example, there is a method to calculate it but it requires all the properties once the fluid is deflected, therefore, that's not the...
39. ### Is this a valid explanation of why ln() is unbounded near zero?

So far, I found the derivative of ##f##: \begin{align*} \frac{d}{dx}\,f(x)&=&-\frac{d}{dx}\,\ln(-x)\\ &=&-\left(\frac{1}{(-x)}\right)(-1)\\ &=&-\frac{1}{x} \end{align*} ##f'(x)## is always positive and never zero on its domain. Hence, ##f## does not have a local maximum and is always...
40. ### COVID Astra-Zeneca Covid vaccine trial explanation

Links for some of the science are included - this presentation is based on press releases. The peer reviewed data will be available shortly. Some things to note - results show both 64% and 90% effective,the video explains this one The tests looked for positive Covid tests in volunteers...
41. ### Geometry General Ellipsoid Area Formula: Detailed Explanation

I'm looking for a source that fully derives the complete formula for the surface area of a general (triaxial) ellipsoid. I'd prefer a source that has more than just a full derivation, but also has a fair amount of prose discussion on this topic. Some historical context would be nice, as well...
42. ### Explanation of the spectrochemical series of transition metal ions

The spectrochemical series of metals, under the circumstances that same ligands are used and that it is in an octahedral coordination, is given by: Mn2+ < Ni2+ < Co2+ < Fe2+ < V2+ < Fe3+ < V3+ < Co3+ < Mn4+ < Mo3+ < Rh3+ < Ru3+ < Pd4+ < Ir3+ < Pt4+ When I was skimming through a textbook to...
43. ### Video of motorized top - is the explanation correct?

Is the presenter's explanation correct in all respects? And has anyone seen one of these "in person"?
44. ### Explanation for the value of K

Here is the question: Is it true that the value of K depends on the amounts of reactants and/or products that are mixed together initially? Explain. This is my explanation: The reaction always shifts left or right given any initial reactant and product amounts to attain equilibrium. Thus, the...

46. ### Explanation about the concepts of co-dominanace and incomplete dominance

We were told that incomplete dominance occurs when in heterozygous condition one of the allele is less efficient and another is normal/wild type/unmodified. Co-dominanace occurs when in heterozygous condition both the alleles produce normal functioning enzyme but both the alleles produces...
47. ### Intuitive Explanation of Mass-on-Spring Oscillator Frequency

I just noticed something that is a little bit of a different perspective on a mass-on-spring (horizontal) simple (so undamped) oscillator's frequency and looking for some intuition on it. There are many ways to derive that for a mass on a horizontal frictionless surface on a spring with spring...

49. ### A Quantum finance equation explanation please

Dear all, Dr. Raymond S. T. Lee in his book on Quantum Finance (page 112), normalizes quantum price return QPR(n) using the following scaling: Normalized QPR(n)=1+0.21*sigma*QPR(n). I don't know of any way of explaining this equation. sigma is the standard deviation of the wave function...
50. ### I Explanation of a Line of a proof in Axler Linear Algebra Done Right 3r

∈Was wondering if anyone here could help me with an explanation as to how Axler arrived at a particular step in a proof. These are the relevant definitions listed in the book: Definition of Matrix of a Linear Map, M(T): Suppose ##T∈L(V,W)## and ##v_1,...,v_n## is a basis of V and ##w_1...