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CS
CS
00:07
1
Q: Designation "2-" in a technical drawing of a component

Horror VacuiWhat does the encircled "2-" designate in the technical drawing below? Is it some standardized/common designation of something? "R" stands for the radius, and the numbers refers to the values in mm. The picture is an excerpt from the 6th page of this document. (I've added the red circles)

5
Q: Is it a responsibility of an evaluator to respond to "literalism" in the context of grading math

hanugmI want to know whether there is a need for responding to students who ask for points/marks by arguing that they only answered the question that was asked. So, I am giving a simple hypothetical scenario. Note: This is a simple scenario and the questions can be different. Consider the following sim...

00:27
1
Q: In Mtg, can I play spells exiled with Evelyn, the Covetous if she is not on the battlefield?

NeillIf I exile cards with a collection counter on using Evelyn, the Covetous's ability, can I still play those cards if Evelyn is not on the battlefield? The wording on cards such as Gonti, Lord of Luxury and Thief of Sanity read: "You may look at and cast that card for as long as it remains exiled..."...

Law
Law
4
Q: Can I put up a joke sign on my private land that reads "Active Minefield"?

MarcI own a few acres (in the USA) and want to put up a joke sign that says "Active Minefield". A friend mentioned that is illegal. I am not so sure, ergo looking for opinion or references. I understand classic free speech examples like you can not yell "Fire" in a movie theater. Since this sign is...

2
Q: Are there non-surjective functions in ZFC theory?

Dan ChristensenIf I understand correctly, in ZFC set theory, a function is just a set of ordered pairs with certain properties. The codomain set is just the set of all its 2nd co-ordinates (ordinates). There is no distinction made between the codomain and what is commonly called the range of a function. So, eve...

01:02
9
Q: Celestial navigation in a 4D universe

Logan R. Kearsley4D objects can rotate in two independent planes simultaneously, giving them 2 equators (great circles where the planes of rotation intersect the surface) and no poles. Both equators are objectively identifiable, but nowhere near as perceptually salient as the equator and poles are on a 3D planet ...

01:14
1
Q: Can an Imperative Sentence have a Subject?

David SiegelCan an imperative sentence have a subject? This is a followup to this comment. User Schmuddi asserted that: English imperative sentences are subjectless. but did not cite any source or authority. I responded that each of the following imperative sentences has a subject: George, open the door...

1
Q: How time-symmetric is orbital mechanics?

Connor GarciaKepler's first two laws tell us that in a two body orbit in which one of the bodies is much more massive than the other, that: The smaller body orbiting the larger body has an orbital path that traces an ellipse. A segment between the two bodies sweeps out equal area in equal time. Given these ...

2
Q: Scanning "Whan that Aprill with his shoures soote"

user392289How would you scan the first line of The Canterbury Tales: Whan that Aprill with his shoures soote This blogger says that it's an iambic pentametre line with a headless initial foot and a feminine ending. This makes perfect sense, but how does one come to the conclusion that this is iambic pent...

01:29
2
Q: Does every analytic function pass through all points in the complex plane?

Noam MenasheIf a function $f(z)$ is analytic and defined everywhere, do its values pass through every point in the complex plane? In other words, is there for any $z$ in the complex plane an $a$ in $\mathbb{C}$ such that $f(a)=z$?

4
Q: What narrative purpose does Ulysses Klaue serve in Black Panther?

AncientSwordRageFrom my memory of when I watched Black Panther (it's been a few months), Killmonger knows how to and is able to get into Wakanda by himself it seems. This answer says that he needs But that doesn't match my recollection - the rebellion is almost ready and Killmonger doesn't seem to need to gain ...

01:45
1
Q: how to interpret classes dependence that are not the reference class in a linear model

FluidMechanics Potential FlowsIf we run the three following codes: n <- 250 df <- rbind( data.frame(cat=1, x=rnorm(n, 0), y=rnorm(n, 1)), data.frame(cat=2, x=rnorm(n, 0), y=rnorm(n, 0)), data.frame(cat=3, x=rnorm(n, 0), y=rnorm(n, 0)) ) df$cat <- as.factor(df$cat) df$cat <- relevel(df$cat, ref = "1") summary(lm(y ~ cat...

02:02
2
Q: Current source with MOSFET

MrBitIn the circuits below, what does the 100R resistor do? In my understanding the 1K along with the 200 pF create an integrator topology to provide some stability but how about the 100R that feeds the gate of the MOSFET? What does it do? Wouldn't that delay the on/off time of the MOSFET's channel? W...

1
Q: Can drum brakes make a bike harder to pedal with?

ablI have two bikes, A and B. A has drum brakes (back and front), while B has rim brakes. Very soon after buying A I noticed that it was more of an effort to get anywhere with this bike as compared to B. Both bikes have broadly the same kind of tire, and are inflated properly. So I took bike A. I di...

posted on April 28, 2022

From Rafael and tagged as extruder,diy-3d-printer,hotend,nozzle

3
Q: Smart way to remove rules from lists, leaving just values, specifically from FindMinimum output

Joshua SalazarI would like to know if there is a direct way to remove the rules from a list of rules. I know that, simply, this can be done with: [in] := {a,b} /. {a->1,b->2} [out] := {1,2} But the output from FindMinimum returns a list with the second element as a list of rules. i.e.: [in] := FindMinimu...

2
Q: Need help formatting `DifferenceRoot` for LaTeX

Fred KlineI want to put this into LaTeX format. What do I do? (FindSequenceFunction[Join[{5, 3, 3, 2}, Table[2, {80}]], k + 1] + n - 1) -1 + n + DifferenceRoot[Function[{[FormalY], [FormalN]}, {16 - 8 [FormalN] + (3 - [FormalN]) [FormalY][[FormalN]] + (-11 + 5 [FormalN]) [FormalY][1 + [FormalN]] == 0, ...

02:32
4
Q: How would faster blocks cause mining centralization?

MurchI've heard that faster blocks would cause mining to become more centralized. How do these things fit together?

02:44
6
Q: Better understanding dividing and forking

ℋoloRecently I learned about dividing and forking of formula / partial types: We say that $φ(x,b)$ divides over $C$ (where $b$ in the monster and $C$ is small) if there exists an indiscernible sequence $\{b_i\}_{i\in\omega}$ over $C$ of elements with the type $\operatorname{tp}(b/C)$ such that $\{φ(x...

4
Q: Markup Language Parser in C++

Latex_xetaLI'm new to C++ and decided to write a parser for a markup language. I chose org-mode because it seemed relatively straightforward. parsertest.cpp #include <filesystem> #include <fstream> #include <iostream> #include <regex> #include <string> #include <vector> #include <nlohmann/json.hpp> names...

1
Q: Why fast matrix multiplication impractical

Jiawei RenI am wondering why fast matrix multiplication are impractical, especially for boolean matrix multiplication. I read some contents saying fast matrix multiplication are impractical because of large constant factor. These constant factors are because of algebraic techniques. I do not understand whe...

CS
CS
03:02
2
Q: Is a current limiting resistor needed for dual opamp supply pins?

tristenleeConsider the TL072 dual op amp that is supplied with +/- 12V. The datasheet says that the supply current for (each) amplifier is typically 1.4 mA, with maximum of 2.5 mA. If both amplifiers are operating, should the current be limited to 2.5 mA on each supply pin? So I would use ~4.8 ohm resistor...

3
Q: How can something be intrinsically moral or immoral?

ActualCryIf nature were amoral, we, who come from nature, and everything we do would be amoral. Unless nature can be moral or immoral. My question would then be: how can something be intrinsically moral or immoral? What is the source of this intrinsic morality that does not depend on opinions and consciou...

DIY
DIY
1
Q: Do I need a new roof to install ridge vents?

siushiI wanted to have a ridge vent installed across the top of my roof to improve ventilation. Roof is about 40ft long with a ridge board in the middle and 5/12 pitch. Roofer came out saying he can't install it unless he puts in a new roof too. When asked why, he said that I have shiplap and need to h...

03:25
2
Q: RSolve with two boundary conditions

blackI want to solve a recurrence equation that has boundary conditions on both sides: $a[0]= 1$ $a[n]= 10$ $a[i] = a[i-1]-a[i+1]\quad \forall i \in \{1, \ldots, n-1\}$ This should be a well defined system with n+1 equations and n+1 unknowns. I tried: RSolve[{a[n] == a[n - 1] - a[n + 1], a[0] == 1,a[...

CS
CS
2
Q: Open ended LM2937-5 outputs 12V

AnonymousThe LDO, LM2937-5, with 12V input voltage and nothing connected to the output terminal, outputs 12 V (measuring using voltmeter). As soon as I connected 100 uF capacitor, it shows 5V. Datasheet clearly states that output capacitor is required, but it does not say about overvoltage, rather than ab...

UX
UX
03:39
1
Q: UX for picking tags and then quantities related to them

Samuele B.I'm making an app in which students can select topics/tags they're interested in, and get a randomly-generated quiz containing questions that have those tags/belong to those topics. For each selected tag, the user must also be able to explicitly specify the amount of questions with that tag that ...

03:55
2
Q: Is authorship justified for performing an experiment 7 years ago, which is published? We just used samples from that experiment for a new analysis

Amanda7 years ago, a mouse experiment was performed, and samples are still available for further analysis. This mouse experiment is already published with a certain readout. Now, we publish a whole different story, and one supplemental figure stems from the samples of that old experiment, with a new an...

RPG
RPG
8
Q: Can you carry someone using Levitate like a balloon?

ChrygoreMy party, creative as ever, have devised a new method of movement. Our party Warlock cast Levitate on herself, after tying a rope around her waist and handing it to another party member. That party member would then run around the battlefield at max speed, dragging the floating Warlock hovering a...

2
Q: Instance on Points with curves problem

DraconiXFirst of all: excuse my bad english :-D i have a little problem over here. i want to generate curve circles with "instance on points" on a curve rectangle. This is what i want to have: But with the the "instance on points" node i will get this. It seems that die vertices are flipped. Does anybo...

04:36
1
Q: Do you have to take the exact loan amount your are pre approved for?

brubsbyIf you get preapproved for say, a 100k house loan, but then find a house for 110k, are you contractually bound to pay at most a 10k down payment? or are you able to still pay a 20% down payment of 20k to avoid mortgage insurance? I know in the converse case, when you want to buy a house for more ...

CS
CS
05:07
1
Q: Germany putting industries or facilities "under state management" if they don't cooperate; provisions for it in the constitution? Precedent?

uhohFox News' April 28, 2022 Germany drops opposition to Russia oil embargo: report includes the following: The reversal from Germany – which had been one of the main opponents of the EU severing its oil and gas trade with Russia – comes after Berlin struck a deal with Poland to import oil by way of...

ELL
ELL
1
Q: Is the term "beltway pansy" used in modern English?

AndreasKraljI was watching this video, and one of the characters stated that they "weren't one of those beltway pansies". Previously, he'd said that he didn't go to an Ivy League school. Is this a common term that one could use in conversation and others would understand, or is it an uncommon term? I tried t...

1
Q: Early implementations of `system()` call in a consumer OS?

Brian HNowadays, it's easy to take for granted the system() call (as defined in POSIX), which allows a user program to easily execute a child process and wait for it to complete. Obviously, this is a trivial (AND useful!) API to implement on a multitasking OS, such as the original Unix. I'm curious abou...

05:48
2
Q: Amplifier with selectable inversion?

James NewtonTwo inputs: Signal: 0-5 volt analog voltage Direction: Standard TTL logic Output: A single analog voltage from -10 to +10 volts When Direction is low, the Signal is amplified and inverted, so that the original 0 to 5 volts becomes 0 to -10 volts negative. When Direction is high, the Signal is ...

06:09
1
Q: Disproving universal gate sets

SVMteamsToolI'm trying to show that none of these sets of gates are universal: ${CNOT^2, H, T}$ ${CNOT, H^2, T}$ ${CNOT, H, T^2}$ For the first one $CNOT^2$ seems to be the identity gate which means that there's no way this gate set can flip the value of some bits. I'm not sure if this argument is corre...

06:34
1
Q: What does Ramchal refer to, when he says to know “principles”?

michaelIn his introduction to Derech HaShem, Ramchal mentions the importance of organized and systematic thinking by breaking things down into general principles. He then details how he broke this Sefer down into “four parts”. Each part has chapters that are broken down into little ideas. Are the genera...

CS
CS
07:13
2
Q: What makes energy "the" conserved quantity associated with temporal translation symmetry?

The_SympathizerThis kind of relates to my prior question about the non-triviality of temporal translation symmetry and will use some of the same concepts: How is energy conservation & Noether's theorem a non-trivial statement? Suppose that we have a dynamical system with phase manifold $M$ and evolution map ("l...

2
Q: Interesting Pattern in Square Numbers and Pattern for Cube Numbers

Big Gay DinosaurI am absolutely not the first person to notice this, but I did notice that the difference between any two squares increases by 2, starting at 1(between $0^2$ and $1^2$). I am not the best at explaining, but it can be summarized in the equation below, where n is the number to be squared. $n^{2}=\s...

2
Q: Why do we get extraneous roots when solving radical or rational equations?

DougLWe all know that we might get extraneous solutions when solving certain equations like rational equations and equations with radicals. In high school, teachers tell students that they should always check the solutions they obtained when solving equations like these because extraneous roots might ...

07:40
8
Q: Atomic function pointer call compiles in gcc, but not in clang and msvc

ja2142When calling function from an atomic function pointer, like: #include <atomic> #include <type_traits> int func0(){ return 0; } using func_type = std::add_pointer<int()>::type; std::atomic<func_type> f = { func0 }; int main(){ f(); } gcc doesn't complain at all, while clang and msvc h...

07:55
1
Q: What is the word used when you are aware of a wrong doing or crime, after the event but do nothing about it

M collLooking for a crime or misdoing that has been done and you are aware but chose to do nothing about it. Say in court how would a lawyer explain this

3
Q: How do I get rid of all of these duplicates?

PlutoniumSlimePlease be gentle, I am new to Linux. I know that everything is handled by package managers like snap, apt, flatpak, etc. but I have no clue which one of these package managers each duplicate app is a part of, so I can't run the command to delete it. There are ways to list the apps, but I have no ...

08:12
1
Q: Magnetic or True heading to determine approach frequency?

user1869879Say you are approaching a class C airport where it says (0 - 180) uses frequency A, and 181-359 uses B. If your true heading is 175 but your magnetic heading is 185, which frequency would you use?

08:39
5
Q: Sum of reciprocals of Sophie Germain primes

Joseph O'RourkeA prime $p$ is called a Sophie Germain prime if $2p+1$ is also prime: OEIS A005384. Whether there are an infinite number of such primes is unsolved. My question is: If there are an infinite number of Germain primes, is the sum of the reciprocals of these primes known to converge, or diverge? Of...

4
Q: Cancelled Series on WOR channel 9 or wpix 11 in the 70’s Dystopian future humans live underground

PropelThere was a series or limited pilot that never took off about a dystopian future where human regressed to caveman like people that lived on the earths surface due to a vaccination gone wrong. So there was a spilt among the humans with the strong aggressive (some of them smart) cave people living...

09:00
2
Q: Inequalities stated in the solution for Brezis Exercise 5.2

Mathematics_BeginnerHere are two inequalities stated in the solution given by Brezis for Exercise 5.2 and I am not seeing why this is true: I know that when $p < 2$, we have $\frac{2}{p} > 1$ and hence we have $$ 2(\alpha + \beta)^{\frac{2}{p}} > \alpha^{\frac{2}{p}} + \beta^{\frac{2}{p}} $$ as $\alpha^{\frac{2}{p}} <

3
Q: Articles with heavenly bodies

RDBuryThis is yet another case where English and German don't seem to agree on when to use a definite article. There were two similar recent questions on the same theme: When to use a definite article with 'Leute' and When is an article to be used with Tränen?. (I came to the conclusion then that there...

10:27
2
Q: How can I increase the resolution of Kubuntu 20.04.4 LTS in VMware Workstation Pro 15?

Franck DernoncourtEnvironment: Hypervisor: VMWare Workstation Pro 15.0.0 Host: Windows 7 SP1 x64 Ultimate Guest: Kubuntu 20.04.4 LTS. VMware extension pack installed, guest was installed via VMWare EasyInstall. How can I increase the resolution of Kubuntu 20.04.4 LTS in VMware Workstation Pro 15? Changing the re...

10:44
1
Q: Why is there no 斯坦 suffix in 阿富汗?

WinMacLinUserI know Afghanistan, Kazakhstan, Kyrgyzstan, Turkmenistan and Uzbekistan respectively are 阿富汗,哈萨克斯坦,吉尔吉斯斯坦,土库曼斯坦,乌兹别克斯坦. But why isn't Afghanistan translated as 阿富汗斯坦 with the 斯坦 suffix for "-stan" like the others?

2
Q: Would appreciate some tips on designing simple OpAmp circuit

tsmotterI've recently posted this question regarding input impedance when working with DC signal on HCPL-7840 Isolation Amplifier. The answers were very clarifying and helpful, but I've come to realize I need more specific help. Just a disclaimer: I decided to use HCPL-7840 because it was the best option...

1
Q: Why do IPA pronunciations pronounce phones in two ways? 1st on their own. 2nd with a vowel /ɑ/ or schwa in front?

Vitali ToiI use IPA and oral cavity videos (is this the correct term?) to master phonemes, while I learn second languages. Examples are [ ʎ̝ ] voiced dorsal palatal lateral fricative, [ ʝ ] voiced dorsal palatal non sibilant fricative — by Glossika Phonics. ʎ, ʝ — by UBC Visible Speech. Neither sounds...

11:20
4
Q: Split given integer into a given number of integers, each within given bounds

Isaac ReefmanInput variables: (Names are just examples, they don't need to be named like this) GrandTotal - integer to divide SplitCount - number of output integers required UpperLimit - highest valid value for any one output integer LowerLimit - lowest valid value for any one output integer Valid Output: T...

12:12
1
Q: Expectation of the ratio of sum (XY) and sum(X)

JayzyuI want to know how the following expression changes as $M$ increases but still have no clue after thinking about it for a while. Any suggestions or comments will be much appreciated. $$E\left[ {\frac{{\sum\limits_{i = 1}^M {\frac{{\sigma _{0,i}^2}}{{1 - \varphi _i^2}} \cdot \left( {5 - 4\varphi _...

TeX
TeX
5
Q: Best method to animate a step by step state space diagram construction in TikZ

FHZIntroduction A long time ago I started learning how to use TikZ and I created some not very well made diagrams. One of those diagrams is a state space representation of linear dynamical systems. When I discovered I could perform animations with TikZ I tried my best to animate that diagram as an e...

DIY
DIY
13:09
1
Q: Where to start first in finishing my basement

asmgxFirst, I have to mention that I have never done any house improvement and I am close to the 50s of my age I bought a house (my first ever) and it has an unfinished basement. I want to finish it by myself, no one to help. all by myself. I am not in a rush. so I watched few youtube videos. for the ...

3
Q: Can an injective contraction take a set with nonempty interior to one with empty interior?

ZorngoSuppose that $(X,d)$ is a complete metric space and that $f \colon X \to X$ is an injective contraction. That is, there exists $K \in (0,1)$ such that $0 < d(f(x),f(y)) \le K d(x,y)$ for all $x,y \in X$. Let $S \subset X$ be a set with non-empty interior. Is is possible for $f(S)$ to have empty i...

2
Q: Cut or Awk to save lines on array in bash

Carlos GomesI have a scenario that I have to put lines of a file .txt inside an array, example of file content; type of host | | first host | | | | second host | | | | | | same ip address | | | | HOST_A_B=192.168.0.1 I have to put this on array in bash #echo $Array[0] ...

CS
CS
13:29
2
Q: When was the Book of Micah written?

Hold To The RodMicah 1:1 indicates the author & the timing of his life: The word of the Lord that came to Micah the Morasthite in the days of Jotham, Ahaz, and Hezekiah, kings of Judah, which he saw concerning Samaria and Jerusalem. The named kings reigned in the 8th century BC (and the first part of the 7th ...

13:52
1
Q: n-th quantile for bivariate variable

user785099I generate a 2000 bivariate random samples which are negative correlated. I used np.quantile to generate 10 quantile from this random samples. The related point is marked in the following figure. I am not clear how to explain why this 10-quantile point locate in this position. The code to perfor...

14:21
1
Q: Can a military satellite be used to spy on any place on Earth undetected?

RedZOf course like many people I only know about military satellites from movies, so I wanted to get some information (perhaps get some myths debunked) by some experts: Can the military use a military satellite to spy on any place on Earth ? live? If a military satellite is used to spy on a rival c...

3
Q: What level of audience should one aim for in the introduction of a STEM thesis?

En PovertyI am writing my STEM thesis, 90% percent of which is about mathematical modeling. However, I am unsure at what level I should write for the introduction. Should I write it so it is accessible for everyone? Or should I assume a high level of technical expertise? Does anyone have experience in this...

14:37
1
Q: Shrewd to repeatedly crank up your limit order price by a smidgen, until your order fills?

Rev. Q. NoiWhenever I buy a security, I always use a Limit Order. Just to be safe, I input a price just below the Bid Price, e.g. 21.80. Why? In case the spot price dips suddenly! See below. This cheap trick matters more for the Options Contract Multiplier! A penny (→ dollar for options) saved is a penny (→...

1
Q: Is it common for mining effort to be lost?

JiminionIf many parties are mining to try to establish a block, and one succeeds, does that mean the efforts of the other miners (whose blocks have at least some common transactions) are lost; the time and energy spent to create their blocks must be discarded?

CS
CS
2
Q: Similarities and differences between Unit and Bottom types?

LanceI came across this recent Reddit thread, Thoughts on Botton vs Unit Types, but I don't understand what the similarities and differences are in regards to when you are creating a programming language. If you are creating a programming language, why do you need both a Bottom and a Unit type (as def...

15:07
2
Q: Solving equation with delay term

Matt ChenI am trying to solve an equation looks like this... x[t] == t^2 + x[t-10] How can I obtain a numerical solution for x[t] in Mathematica? Thanks.

15:30
1
Q: Cardano - cardano-cli query utxo - get all utxo of an address

wandyydAs the title, I've been wondering if cardano-cli has an ability to get all utxo based on given address. I already tried cardano-cli query utxo --address $(cat /path/to/addr) --testnet-magic 1097911063 --whole-utxo But, it will return an error message Invalid option '--whole-utxo' I'm kinda conf...

15:44
1
Q: What do Advaitins mean by the term 'absolute' and vishisht-advaitins mean by the term 'qualified'?

The Crimson UniverseI was reading a few sample pages of a book, where the author gives an introduction of the two monistic schools of vedanta, namely advaita and vishisht-advaita. While doing so he used terms like "absolute identity" for advaita and "organic unity" in the case of vishisht-advaita. Here are the passa...

16:08
2
Q: Why does the hardpoint mechanism on sweep wings produce a contact trace in front of the axis?

TN JapaneseThe basic structure and photos have already been explained on this site and on Wikipedia: How does a variable-sweep-wing aircraft keep wing-mounted payloads straight? Variable-sweep wing, Wikipedia Looking at it, I understood that the pin and pivot that make up the axis of rotation and the li...

GIS
GIS
4
Q: Converting 1 meter to degrees at specific location using PostGIS

SebastianGiven a point in EPSG:4326 I need to know how many degrees (approx) 1 meter is at this location using PostGIS. Feels like http://postgis.net/docs/manual-2.1/ST_Line_Interpolate_Point.html is useful here but I cannot figure it out. Another way to phrase this question is: What is one point (X) her...

16:29
2
Q: Energy to momentum

Hello HumansIs there anyway to convert energy to motion IN SPACE? Let's say a satellite collects electric energy from sun using solar panel. Is it possible to convert it to Linear motion? The only way I know to change linear motion in space is by throwing stuff out (Ions, burned propellants etc).

3
Q: Do I get paid for not being able to work due to technical issues?

AnoukI have a full-time remote job, but I haven't been able to work for two weeks due to technical issues with my work equipment. Nothing in my contract says anything about salary if absent due to technical issues and my supervisor is now telling me that it may affect my paycheck, but getting only hal...

16:46
1
Q: Can a Christian be a Conservative?

cj564My friend is a very strong Progressive Christian and i am a somewhat Conservative Christian, he told that i contradict myself calling myself a Conservative and a Christian, since Conservatives show lack of care for the poor, can a Christian be a Conservative or do they have to be a liberal Progre...

6
Q: In Rust, what happens if main function returns Err?

ynnAccording to The Rust Reference, If a main function is present, (snip), and its return type must be one of the following: () Result<(), E> where E: Error but it doesn't say what happens when main() returns (), Ok(()) or Err(<value>). As far as I tested, () Ok(()) Err(<value>) Exit ...

17:21
1
Q: Understanding how Unbound listen on the Port 53

Gill-BatesI have installed unbound on Debian Buster. Now I wonder why unbound listens 2 times on each Protocol. netstat -tulpn tcp 0 0 0.0.0.0:53 0.0.0.0:* LISTEN 1150/unbound tcp 0 0 0.0.0.0:53 0.0.0.0:* LISTEN ...

17:32
2
Q: Why is deterrence spelt with two r's?

Att RighLooking at a medium-sized word list, all words are written "erence" with the exception of "deterrence" and the name "Terrence". I can find 50 words ending in "erence". What is different about deterrence? Does it have an odd etymology? Or is it used enough to maintain the odd spelling? Addendum He...

1
Q: Developer Console: Keep constantly open without stopping producing debug logs

Giorgos GalaiosIf i open developer console and leave it open without any activity, i get a message after (e.g. 1hr) that "Your Developer Console session has been idle. To resume logging and listening for updates, click Resume below or click Debug -> Resume at a later time." However, i want to keep it open in o...

17:49
1
Q: Why do modern operating systems *ever* have perceptible input (keyboard/mouse) lag?

Paul CalcraftSometimes computers stutter a bit when they're working hard, to the point where the mouse location freezes for a fraction of a second, or stutters intermittently for a few seconds. This sometimes happens with keyboard input too, even in very basic applications (i.e. presumably it's not a complica...

1
Q: Do scriptures consider marriage to be hindrance to achieve moksha?

HarshI have listened from many saints that marriage is bondage and it is only a laboratory(prayog shala) to achieve vairagya! Do scriptures also have same view regarding marriage?

2
Q: Can you omit implied object?

Colonel PanicIn English you can say "my friend is visiting" with the object me/us implicit. In German can you say "meine Freundin besucht" omitting the object? Or must you be explicit?

18:17
5
Q: Movie where the characters finds out what they have to do right at the moment they need to do it to avoid the enemy knowing their plan

ninja1997I remember watching a movie quite a few years ago (probably 2010-2015) where the enemy/bad guy (might've been a lot of enemies I don't remember) of a group of people could read minds or something similar so he knew what they were planning to do. In order to confuse him, one of them, which I think...

DIY
DIY
19:01
6
Q: Challenger Panel: Are there any issues with the breakers we are using?

Outdated Computer TechAfter reading this question and how much of uproar it caused. These are the breakers we are using with our challenger smb20(20-40)SN panel, apparently they are not all the same. 40 Amp x1 - Pool Panel 50 Amp x2 - AC units 40 Amp X1 - Oven 20 Amp x5 20 Amp x2 - Murray 20 Amp Tandem Single-Pole...

2
Q: How to deal with Black's dark-squared bishop on d6 in the London system

antonroI have problems when black places his bishop on d6 in the London. Take for instance the following game: r1bq1rk1/p2n1ppp/2n1p3/1p1pP3/2p5/2P1P1B1/PPBN1PPP/R2QK2R w KQ - 1 12 1. d4 d5 2. Bf4 { D00 Queen's Pawn Game: Mason Variation } e6 3. e3 Bd6 4. Bg3 Nf6 5. Bd3 O-O 6. Nd2 c5 7. c3 c4 8. Bc2 Nc6...

3
Q: Why is there a 零 in 三年零九个月?

Becky 李蓓 ……大王,您所期待的长恒纪元就到来了,这个恒纪元将持续三年零九个月,其间气候温暖,是一个黄金纪元。 刘慈欣,《三体》 This is from the novel The Three Body Problem. I'm a little bit puzzled as to why there is a 零 added in 三年零九个月 = "three years and nine months"; we usually we don't add 零 before numbers, and I would ordinarily expect 三年九个月 to be appropr...

5
Q: Techniques for debugging proofs

Erel Segal-HaleviAfter writing many proofs, most of which contained errors in their initial form, I have developed some simple techniques for "debugging" my proofs. Of course, a good way to detect errors in proofs is to send them to a colleague for review. But even friendly and helpful colleagues tend to focus on...

1
Q: Completely lock user account on server, including ssh

ZioByteI need to lock some user accounts, without messing with their HOME, if at all possible. Normal way would be usermod -L user but it seems to leave open ssh login with public key authentication (routinely used on this server). I know I could just mv /home/user/.ssh /home/user/_ssh or something simi...

19:43
3
Q: Color sharps in key signature with lilypond

VladIs it possible to color the sharps (or flats) in a key signature using lilypond? Notes can be individually colored: \version "2.22.2" \score { \relative { \key a \major \omit Score.TimeSignature a b \override NoteHead #'color = #red cis } } How about sharps in the key signature?

CS
CS
2
Q: If particles are also waves cant we invert them by making it reflect off a fixed boundary?

Abhinav P BWhen a pulse on a rope gets reflected off a fixed boundary, it phase shifts 180° and inverts itselfs. If particles are also waves, will doing an equivalent thing create antiparticles? Is it possible for the quantum field to have non conductive properties in certain conditions and thus allow for ...

20:23
1
Q: The riddle and its affixes

Auribouros My prefix is an increase, a flowing unit, and an acid My infix, with different hearts, can be friends, fruits, or emotions My suffix can make castles, storms, and even paper My all is not the word you discovered, for that is only my name What am I?

20:43
1
Q: Redirect to other server and domain if file not found

Shubham PanchalI have migrated from Apache to Nginx so I want to set all rules in Nginx. Goal: Redirect a URL to another domain with the same filename if that file is not found on the requested server. Example If a user open https://www.example.com/data/1.jpg then my server will try to find "1.jpg" in "data" di...

4
Q: Is Russia notified before prominent visits to Kyiv?

epa095There has been several prominent visits to Kyiv since the war started, including U.S. Secretary of State Antony Blinken, US Defense Secretary Lloyd Austin, UK prime minister Boris Johnson, and United Nations Secretary-General Antonio Guterres. Is Russia notified before these visits so they can av...

21:04
2
Q: "Audi nos" translation problem

Michael McConvilleCommonly, Audi nos is translated as "hear us". Audi is the imperative form of the verb but nos is ordinarily translated as "we". How does "we" become "us"? Is there some grammatical factor operating or is it merely some form of convention?

DIY
DIY
1
Q: How can I fill floor gaps near the door and gaps in parquet units?

TouchstoneThere are some gaps in the floor near the door frame. I am a new homeowner that's why I am not sure whether it is by design or it needs to be fixed. It looks ugly, can I put some kind of filler to hide the gap? I am also noticing some gaps in the floor tile, what kind of filler can I use to fil...

21:32
7
Q: Why would a species take until ~50 years to 'mature' and stop being teenagers?

AncientSwordRageI'm writing fiction in a shared world that I have some control over, and for my own benefit I'm trying to figure out a reason why the Dwarves in this world wouldn't be 'mature' until they'd reached 50. In this world, the absolute maximum age of a dwarf is ~350. I'm going to say they mature at the...

3
Q: Difference between Western Sanctions and Russia's choice to stop Oil/Gas

Lio ElbammalfJust to be clear I'm not in favour of Russia's war and am not arguing against punishing it for the invasion. However I have noticed a difference in rhetoric around what seem to me to be similar sorts of economic action (though this could well just be my ignorance talking). Sanctions against Russi...

21:48
3
Q: What is the biblical basis for distinguishing between spiritual gifts and church offices?

Spirit Realm InvestigatorI've heard Christians claim that someone may have the "gift of apostleship", even though they may lack the "church office" of apostle itself. Same for prophet, evangelist, teacher, etc. What is the biblical basis for making this distinction? What biblical reasons are there for talking about the "...

1
Q: Pitch Adjustment Loose on Tripod

Shawn EaryI have two separate tripods from different manufacturers. For whatever reason, the pitch adjustment is loose on both of them. This often causes the mounted camera or cellphone to fall way out of position during the capture session. In extreme cases, I've even seen this cause the current tripod to...

5
Q: Counter-example for Lipschitz function

J.MayolIs the following statement true or false? Let $f : [0,1] \to \mathbb{R}$ be a continuous function such that $|f(x)-f(0)|\leq |x|$ for all $x\in[0,1/2]$ For all $\varepsilon >0$ there exists $C_{\varepsilon}>0$ such that $|f(x)-f(y)|\leq C_{\varepsilon}|x-y|$ for all $x, y \in [\varepsilon , 1]$...

22:03
4
Q: Invariants for the isotropy representation of a Riemannian symmetric space

Gro-TsenStatement: Let $M = G/K$ be a Riemannian symmetric space of compact type, and $V = T_o M$ be its isotropy representation (of $K$ acting on the tangent space of $M$). Then the Hilbert–Poincaré series $\sum_{n=0}^{+\infty} \dim(\mathcal{S}^n V)^K\,t^n$ (encoding the dimension of the invariants on ...

22:16
1
Q: Meaning of いーじゃん

HPBI am reading 海街 Diary, and I have come across the dialogue below. For context: The older sister of the female protagonist calls her, and then has a go at her because her phone was switched off and she needed to get hold of her urgently. At this point, the female protagonist, taken aback, says: い...

8
Q: Why is signed and unsigned addition converted differently for 16 and 32 bit integers?

NikolajIt seems the GCC and Clang interpret addition between a signed and unsigned integers differently, depending on their size. Why is this, and is the conversion consistent on all compilers and platforms? Take this example: #include <cstdint> #include <iostream> int main() { std::cout <<"16 bit...

TeX
TeX
1
Q: LuaLaTeX fails to render Nepali properly, how can I fix it?

Kristian NordestgaardI'm not that hot with fontspec and friends, so took most from this answer about Nepali verbatim: How to write Nepali and English on the same page in Overleaf Here's my slightly edited code: \documentclass{report} \tracinglostchars=3 % Error if language detection fails! \usepackage[bidi=basic, lay...

2
Q: Strange shopping

dr_A lady enters a clothing store. She tries on a dress size L, but she finds it too large for her. Therefore she tries on the same dress, size XL. This one fits her perfectly. Happy, she buys the dress and she leaves. How is that possible?

22:49
2
Q: Jacobian for Conversion Between Polar and Cartesian Resembles a Rotation Matrix

Sanjit RamanIn matrix form, supposing $z=f(x,y)$ where x,y represent the cartesian coordinate system, one can write the chain rule: $ \begin{bmatrix} z_x \\ z_y \end{bmatrix} = \begin{bmatrix} r_x & \theta_x \\ r_y & \theta_y \end{bmatrix} \begin{bmatrix} z_r \\ z_\theta \end{bmatrix}$ Which turns out...

23:05
2
Q: Extracting the second largest and minimum values, and plot

nightcapeHow to extract the second lowest and the second largest values of each row, and plot them as upper and lower graphs? I try with TakeLargest (or TakeSmallest) as discussed here, but I do not want them sorted in ascending/descending order. I want the graph to be like this. Yes, we can do that with ...

1
Q: “は…は” usage: What’s the function of the first は?

user112563午後は授業はありません。 I saw this sentence in my book, and from my understanding the second は marks the topic of the sentence, and in some cases “は…は” highlights the contrast between two topics, but in this case 午後 obviously means “in the afternoon”, so why is 午後 followed by は?

TeX
TeX
3
Q: Using chinese in a table

CamilleWhen entering chinese in a table, despite trying to limit the column size with p{5cm}, the phrase isn't going to the line below. \documentclass{article} \usepackage{fontspec} \usepackage{array} \setmainfont{NSimSun} \begin{document} \begin{tabular}{|l|l|p{5cm}|l} 驾轻就熟 & jià qīng jiù shú & 驾轻车,走...

23:38
2
Q: Humanity is gone. What's the timeline of vermin infestation in an abandoned wholesale supermarket club?

MindwinDue to an accident during a transdimensional handwavium experiment, every sentient being on Earth was whisked away into another dimension. Humans are gone in a fiat. Somewhere, during temperate summer, near a highway exit, a wholesale supermarket club (think Costco, Sams' Club, and the like) is l...

3
Q: Anatomically Correct Insect From Shaggai

Brinstar77For those unfamiliar with the Lovecraftian-inspired story, the Insects from Shaggai, aka Shans, are insectoid, sentient creatures with 12 limbs that can 'phase' into another organism's brain and begin exerting influence. This can take the form of direct, overt hijacking of the host's nervous syst...

2
Q: Does writing well in one language translate to writing well in other languages?

Nic SzermanI have been trying to improve my writing skills. Most of what I write is in English. To what extent do you think that writing skills are cross-language? I am concerned about my time investment into writing if I move to a Spanish-speaking country.

1
Q: London Embankment cycle routes - are e-bikes allowed?

mike rodentI went along these routes the other day for the first time since the pandemic. Specifically I'm talking about the route from Blackfriars to the West, i.e. to Westminster. I was annoyed by a number of people riding ebikes, seemingly quite powerful ones. A quick glimpse online seems to suggest that...

2
Q: Imposter Mech copying Devotion God

ErikWhat happens when an Imposter Mech, which entered the battlefield as a copy of a Theros God (e.g. Nylea, Keen-Eyed), is crewed? Will it be a creature, or does the phrase on the god which checks for devotion overrule the crew ability?


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