Subject I have a photogenic small dog and often use her for greeting cards and so on. It would be nice to choose different backgrounds according to the season etc. Hardware At the moment, my equipment is primitive, literally a Huawei P-Smart mobile phone. Max resolution [4:3] 13 MP. I'm consideri...

I used to manage a small team a while back, but I switched to another division within the same company a few months ago. In that team I used to do regular 1-on-1s to see if the people in my team were still happy, but when I left, I don't think that practice was continued properly. A person who us...

Before the proliferation of computers in the 1950s, did human computers use floating-point formats for their computations? Floating-point calculation was reportedly implemented already in the 1910s (Wikipedia), so one might assume the idea must have been in circulation way earlier than that. Howe...

Has anyone tried live polling during (in-person or remote synchronous) class? I was planning to use Poll Everywhere, but they don't allow for long questions containing code. There's a new service called ItemPool that does allow this, but is missing advanced features like LMS integration, PowerPoi...

In the poem Otro poema de los dones by Jorge Luis Borges, there is a line which refers to 1955. Is Borges, being Argentine, referring to the military coup to unseat President Juan Perón of Argentina? Or what is the reference? Original line in Spanish: Por ciertas vísperas y días de 1955, Englis...

Let's take a functional $F[\phi]$ as defined in this answer $$ F[\phi] = \int d^4x \, \phi\, \partial^2 \phi $$ whose dimensions are, if the coordinates have dimensions of a length, as it's customary, are $[F]\, = [\phi^{2}]\,[L^{-2}] [L^{4}]$ It's functional derivative is $$ \frac{\delta F[\phi]...

It is commonly stated that the spectral response of RGB colour imaging sensors (CIS) is chosen to match that of the human eye. While this is roughly true, when you examine this claim in detail it is only true to a very limited degree. The human eye spectral response has significant overlap of red...

The 16 words below may be partitioned into 4 groups. Additionally, the four groups may be connected to give a hint at a fictional character. BUDGE ROLL BOW BOSS DIE GRAVE APSE CRYPT PRESS FISH PLANE JOY BRACE EVEN BARK COME Can you identify the four groups? What is the ficti...

There are five pieces of blue string on the table with different lengths, the total length of which is 30 cm. There are also five pieces of red string with different lengths, the total length of which is 30 cm. Is it possible to cut these pieces of string so that in the end they can be divided in...

I want to change the date of my flight back to Frankfurt from Minsk on Belavia. On their website it says: Changes in the date, flight number and route before departure: Allowed for 30 EUR. Differences can be paid up to a higher fare or brand level. Changes in the date, flight number and route...

It is well know that Karoubian categories (also called idempotent-complete categories) are living between additive and Abelian categories. While one of the most famous advantages to work with abelian cetegories is that they are closed under building kernels and cokernels of arbitrary morphism, ...

I cannot get the partial derivative of a set of data. I managed to get the accurate interpolation, but I cannot evaluate its derivatives. Here are my details: data = Import["data.dat"]; The data set looks like this: In[]= data[[38;;49]] Out[]= { {2, 38, -0.000307893533656}, {2, 39, -0.0003079...

I have data points from a CSV-file that I opened in QGIS. The points illustrate different power plants of solar, wind, geothermal, coal, oil, etc with different capacities within each class. I already categorised the symbols by opening the Layer Properties...> Categorized and selected the value I...

Let suppose that I have a egg at $T=20ºC$ and I assume it's almost an sphere of radius $R$, let's call it surface $S$. I put the egg inside a bath with water at $T_w=100ºC$. I want to know the temperature of the egg as a function of time and position. I already know that have to solve diffusion e...

I had some PCBs manufactured prior to ordering all of my components :-( It turns out that the surface mounted 1W LEDs I'm going to use have the heat slug connected internally to the LED's +ve terminal. Unfortunately I have a copper pour over the entire top of my boards, and it's part of the GND n...

I'm using a Koma-based class provided by my university. For some reason however the standard Latex math font is replaced by the following: Any idea how to revert to the default one? I suspect the change is hiding somewhere in the class definition: \NeedsTeXFormat{LaTeX2e} \ProvidesClass{amu_thes...

My understanding is that this goes back to George Washington's time when having one's portrait painted was very fashionable. However, artists did not like painting arms and legs because they often got the proportions wrong. So, they would give discounts on their fees if the sitter was prepared ...

Let $\mathcal{A}$ be a σ-algebra on $\mathbb{R}$ that does not contain all Borel sets (i.e that is, it holds that $\mathcal{B}(\mathbb{R}) \setminus \mathcal{A} \not= ∅)$. Prove that there is a continuous function f : $\mathbb{R} → \mathbb{R}$ which is not $\mathcal{A}$-measurable I have a really...

A spell like Steel Wind Strike requires a melee spell attack. Use an Object (PHB pg193) states, "...such as draw a sword as part of an attack." This doesn't clarify a spell or weapon attack. Steel Wind Strike requires the use of a melee weapon in the casting, but doesn't seem to hit with that wea...

Variable does not exist: ShippingStateCode While trying to compile a code with the following variable defined, I'm getting the error above. private static Map<String, Schema.SObjectField> addressMapping = new Map<String, Schema.SObjectField>{ 'street' => Account.ShippingStreet, 'city' =>...

Romans 15:5; Now the God of patience and consolation grant you to be likeminded one toward another according to Christ Jesus: Is the God of patience God the father in this verse?

I am writing a research paper in which I mention Moroccan explorer Estaban quite often. In the books I have, his name is spelled in different ways; the Wikipedia article linked above lists even more variants, though I never saw a single scholarly source use the name "Mustafa Azemmouri". The probl...

When can this code foo == null throw a NullReferenceException? I know this might seem impossible at first and it did to me as well, but I have seen exactly this kind of code throw a NullReferenceException today, so it is definitely possible. Unfortunately, I wasn't able to minimize my problem int...

I've put up a "random" length long wire antenna for HF in my yard at about 124ish feet about 15' off the ground. I got this length from an online resource. Here's my questions: How does the anchor loop on each of the wire affect the length? Do I need to account for/add 6"ish of extra line to th...

I am trying to specify two types of comment style I have used in my Fortran 77 program (both a c and a !). At the moment the current program just recognises the ! and not the c. Does anyone know how to get LaTeX to recognise both and colour them (red)? Here is my LaTeX Code (condensed): \document...

The Nintendo 64 used Rambus RDRAM. This was an unusual choice, e.g. the PlayStation used regular EDO RAM which I gather most consoles and computers did at the time. As I understand it, Nintendo chose Rambus for speed. This is surprising; it was only 9 bits wide, compared to 32 bits for the EDO RA...

From https://linux.die.net/man/1/zshmisc : noglob Filename generation (globbing) is not performed on any of the words. zsh example: $ ls /* <lots of output> $ noglob ls /* ls: cannot access '/*': No such file or directory $ ls "/*" ls: cannot access '/*': No such file or directory In fish, th...

How to build a debian package from a bash script and a systemd service? The systemd service will control the script by starting/stoping ready to use after the .deb will be installed successfully. From a web searching there are some easy exemples to convert only a single file (python, shell , ruby...

Wikipedia provides the following definitions: Metrical rhythm, by far the most common class in Western music, is where each time value is a multiple or fraction of a fixed unit (beat, see paragraph below), and normal accents reoccur regularly, providing systematic grouping (bars, divisive rhythm...

If one looks, for example, at the NOAA web site for Denver International Airport we see (at the time of posting this question) the Pressure/Altimeter is 29.78 inHg, the Pressure/sea level is 1006.1 mb and the temperature is 54F. If we assume 1 inHg is equal to 33.8639 mb, then I would have expec...

I have noticed that during WWII the Germans captured quite a few P-47s, P-51s, Spitfires, and other Allied aircraft. I know that they tested them extensively but wanted to know if they ever used them against Allied aircraft.

So, the Awaken spell must be cast on a beast or plant with int of 3 or less. For beasts, it has the following permanent effect: "The target gains an Intelligence of 10. The target also gains the ability to speak one language you know." It has a casting time of 8 hours. The Feeblemind spell will...

When cast at 3rd level, dispel magic ends a spell that is currently effecting the target: Choose one creature, object, or magical effect within range. Any spell of 3rd level or lower on the target ends. For each spell of 4th level or higher on the target, make an ability check using your spellca...

I am trying to find out if a library has been loaded after another one. For example has the ox-bibtex library been loaded after the org-ref library. I know you can look at fboundp, featurep, but I need to know the order of loading. I thought I coudl use something like (seq-position obarray 'org-r...

The new Ranger ability, Favored Foe, says: When you hit a creature with an attack roll, you can call on your mystical bond with nature to mark the target as your favored enemy for 1 minute or until you lose your concentration (as if you were concentrating on a spell). The first time on each of y...

I would like to have area lights with linear or circular gradient, so that the light is more realistic without sharp edges and constant brightness. But as soon as add a mapping node it becomes completely dark (as the bottom image). Is there any way I can add a gradient map on area light? (I know ...

$\DeclareMathOperator\Var{Var}$Let $K_{0}(\Var_{\mathbb{C}})$ be the Grothendieck ring of varieties over $\mathbb{C}$. The class of a variety, $X$, in $K_{0}$ is denoted $[\,X\,]$. If $X$ and $Y$ are varieties then we say that they are piecewise isomorphic if there are finite locally closed strat...

Who do you associate with these words/sounds?: Oath This sound Hell (as a name for something) Scoff Cuisine The answer is a (fairly well-known) person.

If $f\in \mathbb{Q}[X]$ is a polynomial of degree $n\geq 2$ and $\varepsilon>0$, is there always an irreducible $g\in \mathbb{Q}[X]$ of degree $n$ with $$\sum_{k=0}^n |f_k-g_k| <\varepsilon\quad\text{ (where $f_k$, $g_k$ are the coefficients of $f,g$)}$$ ? edit : My idea so far: Change the coeffi...

I am not from USA and pertaining to some question I am trying to address, I was curious about how the Presidential candidates are selected or shortlisted for Primaries and Caucuses. Because it's not that if a 1000 people want to run for President, they all would appear as options in ballot in Pri...

I'm trying to understand the nature of the true randomness. I'm building a rng using a radioactive source. Basically I'm measuring the time between consecutive decays which in theory should be unpredictable. The distribution of these time measurements shows a gaussian like distribution as I predi...

I was on another forum and the claim was made that the miners using new technology GPUs are flooding in and because of this there will be more bitcoin produced. My understanding of block rewards is it's like a horserace between miners (or group of miners) to solve the blocks and the 1st to solve...

I am working in a field not really based on combinatorics, therefore I appologize if my question is in any kind invalid. Nevertheless, in my calculations, the Bell numbers appeared. I need to find some $x$ such that the ordinary generating function $$B(x) = \sum_{n=0}^{\infty}B_n x^n$$ converge. ...

I cant get the function \$sqrt[2]{x+2}+1\$ plotted since it has a negative part and the system ,rightfully, does not plot it. I was expecting something like but cant be plotted, I have been trying to rotate, or express like a fraction power but it is not working. All that it gets is But eve...

I've seen a few Mindstorms "infrared transmission towers" listed on Brick Owl, Bricklink and other sites. However, I cannot find any good documentation that how they work, how they are used by users, or why they exist. Can someone shed some "light" on this for me?

I have a list of integers from 0-99, but some of the integers have been randomly removed. I want to pick a random integer that is still in the list, let’s call it ‘a’ but if a+1, a+2, and a+3 are not also in the list I need to pick a new random integer from the list and check again until I get a ...

Context $ bash --version GNU bash, version 4.4.19(1)-release (x86_64-redhat-linux-gnu) Copyright (C) 2016 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software; you are free to change and redistribute it. There is NO WA...

I would like to ask, if my proof checks out and is completely sound. Exercise 3.2.4 from Stephen Abbot's Understanding Analysis. $\newcommand{\absval}[1]{\left\lvert #1 \right\rvert}$ Let $A$ be non-empty subset of $\mathbf{R}$ and bounded above, so that $s = \sup A$ exists. Let $\bar{A} = A \cu...

Is there any good way to determine when it appropriate to reject a manuscript versus merely recommending major revisions? I.e., at what point do you declare a manuscript a lost cause? I understand there are some situations where the decision is very clear. For example, if a paper has methodology ...

I'm setting up my federal tax withholdings with my employer for 2021 using the new W4 form. I'm confused about line 4b. Based on the tax as accurately as I can figure it, if I select married-filing-jointly and figure in the $4000 in tax credits I know I am due on line 3, I will end up overpayin...

I would like to draw the arrow shown below. \documentclass{article} \usepackage{tikz} \usetikzlibrary{arrows.meta, positioning, shapes} \begin{document} \noindent\resizebox{\textwidth}{!}{ \begin{tikzpicture}[ node distance = 5mm and 12mm, b...

For the first one it returns: Non-authoritative answer: YAHOO.COMYAHOO.COMOO.COM MX preference = 5, mail exchanger = mail.h-email.net Also if you just duplicate the tld like C:\Users\dmorri>nslookup -type=mx gmail.com.com.com.com. You get an odd mail exchanger: Non-authoritative answer: gm...

Two of the players in my campaign are Genasi, who are expecting a child. I'm doing research into Genasi's for this new side plot. Although I'm not sure what element(s) they would have. One parent is a water genasi, while the other is an air genasi. So would the child have both air and water, onl...

I'm stuck on the follow question: Let $\mathcal{C}([a,b],\mathbb{R})$ the vector space of the continuous functions $f:[a,b] \to \mathbb{R}$ and let $S$ the subspace of the constant functions of $[a,b]$. Show that the quotient space $\mathcal{C}([a,b],\mathbb{R})/S$ is isomorphic to $W$, where $W$...

Is it even possible to calculate moment of inertia of strange objects like 1/4 of a sphere?

I was posting a homebrew/houserule here for critique (found here: Two-Weapon Fighting Mechanic Alterations ) and a point of confusion that came up was what exactly 5e counted as a damage modifier. The person who answered stated that they usually don't consider adding extra dice as a damage modifi...

If I input a color in a color ramp, and set the ramp to constant, the colors do not come out exactly like the input. They are grayer/darker. Example: On my color ramp, the yellow input is "#FFF763", but the output is "#cecb6d"

How do I install deepin system monitor in Ubuntu 20.10

I'm trying to wrap my head around how the resistance-capacitance oscillator shifts voltage by 180 degrees. As far as understand, a capacitor shifts phase for current, not voltage. What am I missing here?

I discovered a gaping hole about 1" x 3/8" in my carbon fiber rear rim, at a spoke. The rim is a Fulcrum S-19 Racing (22.5x622x28), that I ride on about 100 miles a week, so I imagine this rim is kaput. The rims are about 4 years old and came on the Specialized Tarmac 2017 when I bought the bike....

Sheet music enables instrumental performers who are able to read music notation (a pianist, orchestral instrument players, a jazz band, etc.) or singers to perform a song or piece. Presumably some performers are able to "hear" sheet music from reading prior to performance. Particularly music for...

I want to use a type of scratched metal thing to use for a robot I'm working on, but I want to know how to do it in a procedural way, just using nodes and math, is there any way I can do that? This is a picture of what I want it to look like, but, just less scratches, so if anyone has a way, plea...

In Genesis 6:14 Make thee an ark of gopher wood; rooms shalt thou make in the ark, and shalt pitch it within and without with pitch. The term used for "an ark" is tebah. This term is also used in Exodus 2:3 And when she could not longer hide him, she took for him an ark of bulrushes, and daube...

Most words are in English (are foreign words allowed?), although some are more obscure than others. Clue transcription: ACROSS DOWN 1. Chicken providers have urges 1. Great spices mixed up after trimming 5. Father in agony 2. A nag up a Sanskrit flock 6. Iron out of place in traditio...

I have a (probably pretty amateur) question regarding the Beethoven Piano Concerto No. 3, more precisely the last notes of the third movement. I've listened to different recordings of this piece and noticed that sometimes the pianist plays the last few notes along with the orchestra, e.g. here at...

I have a 400Mbps (download) internet speed which I have confirmed by connecting my modem directly to my computer without a router in between. This was confirmed with a speed test (Photo of 400Mbps speed test connected directly to modem). When the router is connected I am getting a maximum downloa...

I noticed the fact "left multiplication on a group is always bijective" is a very common argument (for instance to prove Sylow's theorem) I don't see why left (and right) multiplication is bijective in general. All I can see is that left multiplication is an action of a group on itself, so let $G...

I have a problem when it comes to work and energy I honestly cannot get the idea behind them, when I read about work it is defined as the ability to transfer energy, But when I read what energy is I find the definition is: the ability to do work, so what is the meaning of this it is meaningless f...

When executing a Bitcoin Script, there are some "special cases" where the interpreter performs extra verification beyond just executing scriptSig and then scriptPubKey. For example, if the scriptPubKey has the following specific format: OP_HASH160 <20 byte hash> OP_EQUAL then the interpreter wil...

A definite integral written entirely in terms of rational numbers and functions of rational numbers does not always equal a rational number. For example, with the function $1/x$, $$ \int_1^2 \frac{dx}{x} = \ln 2$$ I am curious whether or not this is also true for derivatives. Given a function $f...

I want to write a shell command that replaces all newlines from all paragraphs in stdout that match a specific regex with spaces. Here, I'm defining a paragraph to be any text bookended by two or more new lines. Specifically, I want to locate all paragraphs of text that do not begin with ( or $ a...

im trying to learn guitar so i decided to kill two birds with one stone and learn sheet music at the same time as scales, ive got a pdf document that has a bunch but i am confused by these numbers at the top

As I understand prohibition of both is under the basis that it could lead to them being repaired. However there are poskim that consider riding a bike permissible. Why would it be okay to ride a bike but not play an instrument with this in mind?

This is Chris Wayans's map of a terraformed Venus: While there have been questions in this Stack Exchange on how to make Venus more livable for us humans, one question stands glaringly absent, and that concerns sunlight. Since Venus orbits the sun from a distance of 67,200,000 miles, the star's...

I have this ic: https://www.ti.com/product/SN74CBT3251 However, if you look at the actual packaging, there is not a circle, in order to figure out pin 1. This is a picrure of the IC: Can someone give me a tip, on how to identify which is pin 1?

I am proceeding like this: first I select the hole external edges. And I make a face out of them: Then I duplicate the face in the Y axis, and delete the old one (I don't know how to detach the new face from the main object): Then I extrude: Then I extrude again all faces, so to inflate the b...

My journey to work has uphill and downhill segments in both directions (a fact I'm sure to share with my future grandkids one day). In two of these segments, I have to brake pretty hard to arrest my speed. Despite having my brakes replaced recently, and despite having worked from home about 50% o...

I'm nearing graduation and I just want to know what would the equivalent of saying, "Aaaah so close!" in French would be? "À proche de" would be weird, right? In Spanish I'd say, "¡ya mero!" Thanks you for your help!

the strong nuclear force is an attractive force between protons and neutrons that keep the nucleus together and weak force is responsible for radioactive decay. also, neutrino is lepton and positron is antilepton and an electron is also a lepton so, according to law of attraction, a neutron shoul...

I have reviewed questions on MMMA Stack Exchange and found no help. Here's my problem and my code, which only partially works. I can't figure out my mistake. Help? Find the mass and COM of a wire in the shape of a helix, $x = t, y = cos t, z = sin t$ where t is between 0 and 2 $pi$ if the density...

How to resume the cycles rendering in viewport as in my case it is showing 'Rendering paused'. If it is to do with some additional settings than please ask me but help fix this because I have to render image every time to view what is going on!

Suppose that a finite-dimesnional Hopf $C^*$-algebra $H$ acts on a type $II_1$ factor $N$ minimally (that is, $N^{\prime}\cap (N\rtimes H)=\mathbb{C}$). Is it true that there always exists a minimal action of the dual Hopf algebra $H^*$ on $N$?

The PlayStation was notorious for texture warp, because it didn't have the transistor budget to implement perspective: Why do 3D models on the PlayStation 1 “wobble” so much? But wait a minute. The Super Nintendo implements perspective in mode 7, and that's a previous generation machine. Play a g...

So currently I am a final year undergraduate from a university in India and I am doing a research internship at a University in the United Kingdom. The researcher under whom I am working had earlier offered to cover my living expenses, subsistence, accommodation at university's hostel (studio apa...

I am wondering if there is a way for Vim to alarm me when I am pasting a large amount of texts (using clipboard) into it. For example, when I am pasting more than 10000 letters, Vim can alarm me that I am pasting too much and confirm if I would like to proceed. Is this possible? Thank you in adva...

This is occurring on SQL Server 2016 (Enterprise). Example Table structure: CREATE TABLE [dbo].[Foo]( [FooId] [bigint] IDENTITY(1,1) NOT NULL, [FirstFkId] [bigint] NULL, [SecondFkId] [bigint] NULL, [ThirdFkId] [bigint] NULL, [FourthFkId] [bigint] NOT NULL, [ParentId] [bigi...

I'm reading the C4 explanation and I like many of its directives. http://socialarchitecture.science/c4-deep/ I'm not looking to create a OSS project that aims to be C4 certified. For one reason, I like to have a MIT license and I will start off with myself as the first maintainer. I think those t...

This circuit I am using to drive a speaker is acting strangely. Case 1: When I connect the 3.3 volts source from the Nucleo board it works fine as expected (in terms of the sound.) When I check the voltage across source it is 3.1 to 3 volts. A drop of only .2 to .3 volts. Case 2: When I connect...

Is it possible to place 1000 line segments on the page so that the two ends of each line segment are on the inner points of other line segments? (By the inner point of the line segment, we mean a point other than its two ends)

How can you show that a species has the potential to become fully sapient like us but isn't quite there yet? So far I have social structure and versatile appendages.

I am learning CCNA related tasks, I have picked up a Cisco 1900 Series router. I am attempting to set it up behind my existing router (Comcast standard router). My "Real" network is 10.0.0.0/24 My goal is to create a 192.168.1.0 network using this router. I have manually assigned gigabitEthernet0...

I'm now attending a reading seminar on the algebraic topology. The seminar treats the book of Bott & Tu (Differential Forms in Algebraic Topology) and Milnor (Characteristic Classes). In those books, theorems on the Riemannian manifolds are frequently just mentioned and used. To mention some exam...

Kick-Start Your Graphic Design Career. Le contexte c'est que c'est dans une offre de stage destinée à des étudiants. On peut voir que le verbe (to kick-start) pourrait signifier démarrer rapidement/bien, donner une nouvelle impulsion à quelque chose, commencer en beauté, (re)lancer, faire repar...

I am trying to find a (numerical) solution to the following integral equation: where $\epsilon$ is a real valued function (starting from zero) and $\beta$ and $c_0$ are constants. MMA code: -(β*Integrate[ϵ[s]/E^((-s + t)*β), {s, 0, t}]) + β*Integrate[ϵ[s]^2/E^((-s + t)*β), {s, 0, t}] + β*Integr...

I am currently working on my master's thesis and going to apply Deep-SARSA as my DRL algorithm. The problem is that there is no datasets available and I guess that I should generate them somehow. Datasets generation seems a common feature in this specific subject as stated in [1] When a dataset ...

Given a positive integer \$n\$ output an ASCII hexagon with diagonal side length \$n\$, as pictured (note there are \$2n\$ _ characters on the top edge) Examples: \$n = 1\$ __ / \ \__/ \$n = 2\$ ____ / \ / \ \ / \____/ \$n = 5\$ __________ / \ / ...

I have no idea how to, or even is possible in some way, but maybe there is an app, software or someone of you have any idea how to! Please note, that I have no skills in coding or programming. I Will travel around my own country borders as close as possible, but before I do, I need some data: min...

This puzzle was originally formatted as a PDF; the puzzle PDF is available on Dropbox. A screenshot of the PDF is available below. This puzzle is an entry in Fortnightly Topic Challenge 46, "Tales from the Cryptic". This is a sequel to Not Bluebeard's Castle, which reveals a certain set of works ...

I am running a quantum mechanical simulation on Psi4 for a certain number of monomers to generate data for a database. Some of these monomers are short, while some are long. At the moment, I am generating .pdb files for these monomers using their SMILES string, and using OpenBabel's genetic algor...

Now I had previously asked how a loving interspecies couple would work around very Alien Body Plans that is now sadly closed (How will interspecies lovers overcome different body plans?) That question was my attempt to dip my toe in the water, to see weather or not the idea had any merit. This i...

Currently, my DHCP server is handing out IPs in the 192.168.0.1/24 range. What would happen if I set a static IP on a device of e.g. 192.168.1.10? And just out of curiosity, what would happen if I set the IP to (1) something that exists elsewhere (e.g. on the www), or (2) something that the DHCP ...

Calculate $$\lim_{x\to0}\frac{(x+32)^{0.2}-2}{x}$$ without L'Hôpital's rule. My attempt: I first rationalized the expression to get $$\left(\frac{(x+32)^{0.2}-2}{x}\right)\left(\frac{(x+32)^{0.2}+2}{(x+32)^{0.2}+2}\right)=\frac{x+28}{x((x+32)^{0.2}+2)}$$ How should I get rid of the singular $x$...

Is there a reason for a human sized parasite to infect other animals if it can very well hunt alone and defend itself? I thought about it injecting eggs into other animals, but that's pretty much killing it and using it as food, not really parasitical. By parasite I intend something that is not e...

The tidal forces a habitable planet experiences increase with decreasing spectral type. So a habitable planet orbiting a smaller, less massive, and cooler star would experience much stronger tidal forces than one orbiting a bigger, more massive, and hotter star, and likely be tidally locked. But ...

I have multi-polygon geometries in my file, and I want to take only the largest polygon within the multi-polygon geometry to further work with it. I tried using Geometry Tool Multipart to Single part, which allowed me to have single polygons. Now I suppose I could filter for non-unique IDs and ha...

I've reviewed the "Similar questions", and none seem to solve my problem: I have a large CSV input file; each line in the file is an x,y data point. Here are a few lines for illustration: 1.904E-10,2.1501E+00 3.904E-10,2.1827E+00 5.904E-10,2.1106E+00 7.904E-10,2.2311E+00 9.904E-10,2.2569E...

On the Internet, I can find several statements done over the years claiming that serving a X.509 CRL over HTTPS is a bad practice because either a) it causes a chicken-and-egg problem when checking for the TLS certificate and b) it is simply a waste of resources, given that the CRL is by definiti...

I got a cheap refractor as a present - my intro to astronomy. I think it’s not great, but I’m having plenty of fun looking at the moon and planets, and who knows, maybe some other objects soon. The thing that limits me the most, I think, is the tripod that came with it. It is super flimsy, I can ...

This is something one encounters quite often when reading up on general relativity. How am I to understand this statement in comparison to, say, electromagnetism where light is understood as ripples in the electric field which creates ripples in the magnetic field, which creates ripples in the el...

I've looked at other questions here about toddlers throwing food. But they seem to do it for the fun of watching things fall, or in the middle of their meal. So those answers do not apply to my situation. My son only starts to throw food when he doesn't want to eat anymore. This may be because he...

Do you think it possible and safe to hang this cabinet on this wall with no support below it? It is 38 x 90 x 100cm and weighs something like 30kg, It is intended to fill it with dishes and such so it'll get even heavier. The wall is reinforced concrete. I've looked around at videos and forums fo...

Nearly 35 years old Software developer from Germany asking for help or some input. Not easy for me to write my worries and fear down, but I hope it helps me. Actually there is no one in my social circle who understands my concern which makes it hard to talk about as they are not working in the so...

How to connect or jump start a car battery. So in what order to connect the poles and why? I read so much (different) explanations and I would like to have a final generally accepted/recognized answer to mark this question. This is (also) related to human safety.

I have read many tutorial and no one is using the el() syntax but the "markup syntax" (JSX?). Here is my example: This worked fine, but I think I have to migrate to make it easier readable: edit: function(props) { return [ el( BlockControls, { key: 'controls' }, el( To...

I am trying to learn jazz standarts from the real book and for example when I play "autumn leaves" or "black orhpeus" with guitar from the real book it sounds simpler than original recordings of Paul Desmond. What causes this and how can I practice in a way that is more similar to their music?

There are plenty of videos and descriptions about how to use an RJ45 crimping tool. I've seen a few, and I have even tested a crimping tool, but I still don't understand how it does what it does. What exactly happens to the eight wires inside the crimping tool, and why isn't it necessary to remov...

I'm working on conversion of Oracle queries to MSSQL queries. Following is query for Oracle - SELECT USERNAME FROM DBA_USERS WHERE USERNAME = 'TESTUSER'; But in MSSQL, DBA_USERS is invalid object is thrown. Please suggest what is equivalent of the same in MSSQL.

I have a crack in the paint that seems to be getting larger over the years. It doesn't seem to be damp. Could this be something serious or just shotty installer work?

I am planning on playing a campaign, and I want to play a gold half-dragon. I haven't found any information about how I would create one, and what abilities it would have. Is it canon?

$ echo 'output: " ' | sed "s/\"/\"/" output: " $ echo 'output: " ' | sed "s/\"/\\\"/" output: " $ echo 'output: " ' | sed "s/\"/\\\\\"/" output: \" I want to understand what is happening in the first and second example. What I understand is, since I am using double quotes for the sed expressio...

I found the symbol: It is available on: https://www.arduino.cc/en/uploads/Main/arduino-uno-schematic.pdf What is it?

A sneaky thief wants to infiltrate a building through its chimney. Can she does that? PHB p. 193 "Creature size" says a creature "squeezes" when going through a small space: A creature can squeeze through a space that is large enough for a creature one size smaller than it. Presumably, that mea...

I came across this piece of text and I for the life of me can't understand why "twelve" is written tpelf. I have encircled other numbers that are strange. My friend who lives in New York sent me this and told me that "twelve" was pronounced with a P sound and it has now diverged from how it actua...

What are the utility functions standardly used in introductory microeconomics courses. My own list would include Perfect substitutes: $U(x,y) = ax+by$ Perfect complements: $U(x,y) = \min(ax,by)$ Cobb Douglas: $x^\alpha y^{1-\alpha}$ Quasi-linear: $x + y^\alpha$ CES: $U(x,y) = (x^\rho+y^\rho)^{1/...

I have a circuit where a charged capacitor must be discharged over a load resistance. The trigger switch here is a 10A relay so, to avoid damaging it when the load resistance is too low, I decided to add a current limiter circuit between the capacitor and the load. This is the circuit (everything...

I need a circuit/IC that can generate a single pulse with a variable pulse width (I would want a minimum of 50nS but if that is not possible the next minimum can be 1uS, and even if that is not possible then the final minimum can be 5uS, depending on the achievable minimum, correspondinly the max...

I was studying an Iranian olympiad book problems then I faced a very intersting puzzle, I wanted to solve this but faced lots of problems. I'd like to share this with you and know your mind. We have divided the following figure garden into two areas with fences.We have drawn the fences on a simpl...

I have a task revolving around a small game, called Lights Out. Game The game consists of a board with dimensions 3x3, where each cell can either be 1 or 0, for example: 0 1 0 1 1 0 0 0 0 the game is said to be solved when all cells are 1, so: 1 1 1 1 1 1 1 1 1 and in each turn the user can cl...

My idea is a corvette is dipped in radar reflecting paint that makes it look like a 50x50x70 foot asteroid. It shuts down its reactor and the crew all huddle in the ops deck with minimal heating and life support. The ship sets itself drifting with a slow rotation to make it more asteroid like. Si...

I've tried to recreate this light in Blender. Maybe someone has a better and smarter approach to model this light. My approach: Create a sphere Create a icosphere (small graves) Icosphere displace modifier and texture Create a Particle System for main sphere with Icosphere as Render Object.

Most bolts to mount accessories and minor parts to bikes are M5. A good example are bottle cage bolts. Components are often attached by M5 and sometimes even M6 bolts (eg long bike in quill stems, threadless stem preload). Even the worst property class of an M4 bolt offers tensile strengths of at...

In my LWC, I am trying to call an Apex method and wait for it to finish. This is what it comes down to: import apexMethodA from '@salesforce/apex/SomeControllerClass.apexMethodA'; export default class TradeWindow extends NavigationMixin(LightningElement) { initialJSfunction() { cons...

The quote is as such: [56] quod Cicerō optimē videt ac testātur frequenter sē quod numerōsum sit quaerere, ut magis nōn ἀπάλαιστοι. quod esset īnscītum atque agreste, quam ἔνρυθμον, quod poēticum est, esse compositiōnem velit; sīcut etiam quōs palaestrītās esse nōlumus, tamen esse nōlumus eōs qu...

In my world there are lots of illegal neurological and mechanical enhancements you can purchase off the black market. Gangs make super soldiers by doing this. The procedure is very dangerous and side effects include mental instability and death by over exertion. These people are a credible threat...

The rangerfinder patch in my Yashica Electro 35cc is has to be shifted at a position that is diagonally upper-rightwards to create a genuine focus in the final image. Is this a fault of the camera itself, or can this be fixed by a film camera technician? If the rangefinder "shadow" is perfectly a...

I want to know that if I can get various outputs only one \newcommand or \def definition. Assume that I have a command like that: \newcommand{\command1}[x]{blablabla} I do not know the syntax is correct above given example (obviously I wanna know how it's syntax) but simply I want to get an outp...

this is something I wanted to understand for a while. For example, I observed recently the yields across the Mexico Xccy Basis curve have been decreasing 1-2 bps on last days. What could possibly drive moves in this curve? Is it driven by FX moves or more on the side of expectations of rates cut ...

If I have several data set like the following (I am showing just two): data1 = {{0.043026`, -1.574246`}, {0.545`, -1.645566`}, {1.046`, \ -1.6726`}, {1.544`, -1.60482`}, {2.033`, -1.196952`}, {2.521`, \ -0.744032`}, {3.009`, -0.3334`}, {3.499`, 0.022269`}, {3.993`, 0.25591`}, {4.487`, 0.4617...

In my case, I have a background color #333 and a "+" layer with blend mode difference. The blend mode is evidently so that the "+" is always nicely visible for any background color variation. But the default value for the background is #333. Now I don't know what color I have to input for the "+"...

My understanding of a naive PSK scheme is that you have some frequency(s), f(n), at baseband, and you modulate information by shifting the phase (what "point in time") the signal is at. Isn't the phase shift instantaneous? In this case, isn't the frequency constant? Why do PSK modes look vaguely ...

I have quite a few co-workers who when they send a message, will send a greeting and literally will not say anything else until you greet them back. Some even repeat their greeting multiple times, and one even complained that I had seen their message but had not replied. Sometimes when doing mult...

I build the hull and use a subdivision surface modifier. I know that if I want to sharpen an angle on the outside, to use Shift + E. But how can I sharpen that angle so that is inward? As you can see in the picture, there is a curve. I have tried but can't find a solution. I would like to remove ...

In the Chernobyl series it is said that the two nuclear engineers had no alternative except for pressing the "AZ-5" button, couldn't they just insert the Boron rods back in one by one as they renewed the water supply to the core?

I currently own a Trek Dual Sport 3 2020. I'm very happy about the versatility of the bike from a riding point of view, but also "accessorization". I'm mostly doing light trails (no jumps, but roots and loose stones) and road. I'm also planning a 800km tour — road and gravel. But I'm not so much ...

I'm looking for a solution to a problem I'm having trying to generate results quickly. I've searched a lot for answers but can't find specifically what I'm looking for I have a serial number, where I want to copy down to multiple cells (like dragging a number to generate), but changing the letter...

The C++ specification (e.g. C++17 [class.static] §2) says: The definition of a static data member is in the scope of its class. With an example (taken from C++14 spec): int g(); struct X { static int g(); }; struct Y : X { static int i; }; int Y::i = g(); // equivalent to Y:...

Would the vice president be required to always be in the senate chamber in order to break ties? If not, how often must she be there -- or does she need to be there at all to vote her tie-breaker vote? I wonder does this make her less effective at what a vice president would otherwise be doing, wi...

A comment thread on GFCI outlet on 2-wire ungrounded question led to a discussion of whether GFCI is better/worse or even permitted at point-of-use (GFCI/receptacle) instead of GFCI/breakers in the panel: It is simply no longer code for new installs for a reason, the NEC is not stupid. I've trie...

I'd like to know which character is output from which key, including with modifiers like ⌥ ⌘ ⇧ ⌃, including the character and its Unicode number. Only the primary characters appear on my physical keyboard, but some less-known ones are produced with the modifiers. This can actually be seen under...

The UK’s Royal Mint announced in January 2021 a commemorative £2 coin “Celebrating the Life and Work of H. G. Wells”. The coin design (depicted below) suggests that no-one involved in the project had much in the way of expertise on Wells. As Alison Flood writes in The Guardian: Observant fans of...

I get it. Debian package management says; Do not erase or alter files in /var/lib/dpkg/. However, there are 11,501 files in there dating from 2006 $ ls -l /var/lib/dpkg/info | wc -l 11502 sudo find /var/lib/dpkg/info -type f -printf '%T+ %p\n' | sort | head -n 20 | awk '{print $NF}' | xargs...

In 2017, the joint session of Congress certifying Trump's 2016 win took a little over 30 minutes; I watched it. There were a few objections from Representatives, but none were joined by a Senator and so Biden gavelled them into silence. Section 15 of the US Code governs this process, and has this...

If every board is nailed down on one side of each board, then gaps would open between each board when they shrink. Dust and debris would fall into cracks and any liquid spills would get between the boards, dripping down into the "tongue and groove" seam, then down to the sub floor (or at least in...

When compositing my render with an alpha over node to be able to edit my background and my foreground separately, if I use a defocus node to give my image some DOF, I always run into those weird artifacts that happen at the transition between the "in focus" zone and the "out of focus" one. Anyone...

Result I get for the following replacement doesn't seem to be correct. {a*b*c*d*e} /. {d -> d*f, a -> a*b*c, b*c -> b*c*d*e, c*f -> c*f*g} => {a b c d^2 e^2} It didn't include d -> d*f & c*f -> c*f*g. What am I missing?

Say you're a fisherman and you're heading upstream in your boat, and you see a human corpse float past. Obviously even if it wasn't murder, it still warrants a 911 call because it was a death. The river however, is steadily moving the body away. Can the fisherman touch the body and avoid legal je...