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00:29
2
Q: colimits indexed by spaces and Cartesian natural transformation

YangGiven a morphism of spaces $f: T\to S$, and a diagram indexed by $T$ in $Cat_{(\infty,1)}$, $F: S\to Cat_{(\infty,1)}$, by pre-composition $T\to S\to Cat_{(\infty,1)}$, we get a new diagram $Ff: T\to Cat_{(\infty,1)}$. By taking the colimits, we have a morphism colim$_{\xi\in T} F(f(\xi))\to $co...

1
Q: How to use Biot-Savart Law on a moving point charge?

youthdooLet a point charge $+q$ be moving with constant velocity $\boldsymbol v$. At some moment, its position vector with respect to the origin is $\boldsymbol x$. We need to find the magnetic flux density $\boldsymbol B$ at the origin. If we apply Biot-Savart law, $$\operatorname d\boldsymbol B=\frac{\...

CS
CS
00:51
3
Q: What does "full assurance" mean in "full assurance of faith", Hebrews 10:22?

C. StroudHebrews 10:22 ESV "Let us draw near with a true heart in full assurance of faith, with our hearts sprinkled clean from an evil conscience and our bodies washed with pure water." [My emphasis]. Is "full assurance" a way of describing "faith", i.e., anything less than "full assurance" is not "faith

1
Q: Does the Catholic Church's epistemological approach to verifying miracles have any philosophical flaws?

StefanFirst source: https://dornsife.usc.edu/news/stories/what-is-a-miracle/ More than medicine The word is used widely in nonreligious ways. However, the Catechism of the Catholic Church, which sums up the church’s teachings, defines it as “a sign or wonder such as a healing, or control of nature, wh...

01:14
1
Q: Add custom action to actions link on view

titouilleI would like to add a custom action for a particular entity (from a contrib module). This module show the list of entities on admin part with a view, that use the "actions link" to show standard actions like "edit" and "delete". My goal is to add a new entry to this dropdown list with a specific ...

3
Q: Expected number of rolls necessary to roll a specific number M times with a N sided die

shrxI want to calculate the expected number of die rolls necessary to roll a specific number M times using a N sided die, with a given confidence. I know this is related to the Coupon collector's problem, but all related answers are concerning the probabilities of rolling any M numbers, not a specifi...

DIY
DIY
01:36
1
Q: 5 3/4 door jamb question

TMax64I need to replace the front door on my 1960's brick ranch house. Lowe’s measured and the door jamb is 5 3/4 therefore the $450 stock door I had chosen will not work. Quote for custom door is $1,680. Installation labor and materials quote by Lowe’s contractor is $1,200. Grand total of $2,880 fo...

02:01
2
Q: Two characters played by the same actor shake hands. How was this effect accomplished?

Mason WheelerOn season 9 of Last Man Standing, Mike Baxter (Tim Allen) meets Allen's previous sitcom character, Tim Taylor. Having them on-screen talking with each other is no big deal; we've seen TV and movies pull that trick off for decades now using a split-screen, but I don't think I've ever seen two vers...

02:20
2
Q: How does an "enterprise browser" work?

HarishThere are some new security companies selling what they call "enterprise browsers". For instance, Island (https://www.island.io/blog/what-is-an-enterprise-browser) is one of them. Both Microsoft and Google also have enterprise versions of their browsers. They claim they can enforce things like pr...

2
Q: Would telecommmunication be practical in this apocalypse?

ZuzuI'm currently writing a post-apocalyptic story set in modern times—the 21st century. 10 years ago, a calamity I've yet to name (let's call it The Darkness for now) appeared in response to the collective despair of humanity and has been ravaging the world ever since. The Darkness is a unique subst...

AI
AI
1
Q: Has deep learning discovered new algorithms?

GeremiaHas deep learning discovered any heretofore unknown algorithms? Goodfellow et al. give an example of learning XOR, and the Universal Approximation Theorem seems to imply that deep learning might be able to represent any algorithm (or Turing machine?).

02:45
2
Q: Error with automatic weights on cards

Percy MiraiI have some cards of feathers with transparency on EEVEE, and I want to set parent to the rig of a bird with rigify but it says "failed to find solutions for one or more bones". I know that this is because the mesh is separate in cards, but I want to know if there is some way I can parent the car...

CS
CS
03:05
2
Q: Curtain motor board, unknown 7E ic involved with H-Bridge

HalfdoneI'm attempting to reverse engineer a window curtain motor board. I'm very much a electronics beginner. The board has two ICs marked "7E" (labeled Q3 and Q4) that I'm unable to determine was it is. This absolutely tiny 6-pin IC (looks to be SOT−363?) is connected to the gates of the 4 P/N-Channel ...

1
Q: Why are valid forms of hypothetical compound syllogisms not fallacies?

ProfessorFinesseLet's say I have four arguments around the same subject matter: A) Affirming the Antecedent (valid) If it is raining then I will get wet It is raining Therefore I am wet B) Denying the Consequent (Valid) If it is raining, then I will get wet I am not wet Therefore, it is not raining C) Af...

3
Q: Int128 for handling large numbers based off of BigInteger

Charles HeningtonI have created Int128 which is based off of BigInteger with operator overloading to handle larger math requirements. Here is a look at my Int128 implementation. /// <summary> /// Creates a new <see cref="Int128"/> /// </summary> public readonly struct Int128(long high, ulong low) : ICompara...

3
Q: Atanagrum declension

trespdaLivy mentions once a city in Hispania, Atanagrum : 21.61 No other author wrote about it. In 19th century dictionaries it appears as Athanagia: L&S DGRG. What is the basis of this lemmatization? I (read chatgpt) gather that it appears in the accusative, in aposition with "urbem". But -rum/-arum is...

CS
CS
03:27
1
Q: Why can’t you combine coloured filters in the same way you can combine coloured light?

Ian Goldsmith - ColourIf you use two torches, one with a red filter/gel attached and one with a green, you can combine the projected light to create yellow, but why then can you not use both filters on a single torch to generate the same result?

1
Q: Using one I2S channel to transmit two audio files simultaneously

Emirhan ÜzümI am using ESP32-S3 for sending I2S signals to an external class D amplifier (MAX98357a) that takes in PCM data input and outputs the amplified signal into a speaker. Which then with the help of his speaker coils "filters" out or converts the digital signal and makes sound. Now, i want to send tw...

GIS
GIS
1
Q: Unable to align TIFF layer with world map

I.PI am trying to align (perfectly and properly) a TIFF file with either Google's map or the OpenStreetMap (or any other, if there are any decent ones). I have tried so many different version, some simple, some very complex. But none fully align. This is the closest I have gotten: import rasterio fr...

CS
CS
03:50
4
Q: What does "conjugate variable" encompass, and how does it do this?

RelativisticcucumberContext for the question: I am studying Legendre transforms in statistical mechanics. I have read that the Legendre transform allows us to transform between conjugate variables in expressions. For example, if I begin with $E(S,V,N)$, a Legendre transform can get me to $E(T,V,N)$. The confusion co...

CS
CS
04:12
1
Q: STM32F103C8T6 - standalone - sanity check

user1937226I'm looking to develop a standalone project using the STM32F103C8T6 which connects to a laptop through the USB. I'm using the STM32 cube and a dev board for the s/w which looks ok; in terms of software I've followed https://controllerstech.com/send-and-receive-data-to-pc-without-uart-stm32-usb-co...

1
Q: Can't scroll with mouse (only in browsers)

RainneDecemberI am running Ubuntu 24.10 on my Surface Go 3 (2013). Scrolling up and down with the mouse works in the Settings app, but not in any web browsers. I have tested several browsers and different mice, including my touchpad. Are there any fixes? It's driving me mad to have to manually click and drag t...

1
Q: What was The Tracey Ullman Show episode where Tracey could fly but nobody cared?

Miss UnderstandsI'm trying to identify a The Tracey Ullman Show episode where Tracey Ullman applies for a job playing Peter Pan. She reveals that she has a comic book super power: she can really fly. For some trivial reason, she doesn't get the job. I believe she ends up lifting logs out of the Oregon forest. Th...

04:35
6
Q: Trying to identify a space (horror?) movie with astronauts that had skulls as their heads

ManaAs a kid I remember watching a space (horror?) movie that had astronauts with skulls as their heads. The astronauts had a blue or red glow inside the helmet which showed their skull head. I vaguely remember the skull astronauts trying and succeeding in turning the normal human crew into more of t...

Law
Law
04:57
1
Q: Do antitrust laws in the US apply to individuals, such as eBay and Etsy sellers?

DannyI know laws against price fixing apply to large corporations and small businesses alike. However, do such laws also apply to individuals? For example, let's say I am selling cookies on Etsy and find two other local Etsy sellers who also have cookies for sale. I reach out to them to set up an agre...

TeX
TeX
2
Q: Wavy design at the top of the page

Anna-KatHow to edit this shape to be similar as in the picture? I mean some wavy design, the top part of the page in filled with colour and the wave is deeper on the right side. The right side is fine now, but I do not know how to make the wave to go smoothly up. \documentclass[10.5pt,a4paper]{report} \u...

1
Q: Bottom-up construction of 6-cycle graph using Havel-Hakimi

johnjorgensonI am wondering if one can obtain the cycle graph $C_6$ given the degree sequence $D = (2,2,2,2,2,2)$ using the bottom-up construction resulting from the recursive sequences in the Havel-Hakimi algorithm. I believe that this isn't possible, because the recursive sequences obtained from the algorit...

05:21
1
Q: Convert old nodes (version 2.91) to new nodes (version 4.2)

Gabor NorbertI was making a galaxy in Blender version 2.91, but I knew if I get the nodes to Blender version 4.2 it wont work, as I used MixRGBs and the Emission from the Principled BSDF and more. Does anyone know how to convert them if it's possible?

5
Q: Should a Master's Student Be First Author If They Didn't Do the Interpretation?

CoolcrabI'm a postdoc supervising a Master's student on a project involving the analysis of ~20 large datasets. The student did a fantastic job processing and reducing the data, generating high-quality visualizations and movies. The techniques used weren't novel but required considerable effort and adapt...

05:44
1
Q: How necessary is it to get a wheel torque check within 50 miles?

Andrew ParksI'm in the UK, and I just ordered a new tyre (tire) to be fitted. The receipt says "as a reminder, wheel torque settings MUST be checked within 50 miles of wheels being fitted". I've never heard of this before. When a mobile fitter replaced my tyres a few years ago, they didn't ask me to drive ar...

06:04
3
Q: A dystopia where participants to a long distance car race can win bonuses by killing pedestrians

AlfredI read this short fiction at least 40 years ago, probably in a collection. Not a novel, possibly a novelette, but probably a bit too long to qualify as a "short story". In this dystopia, long distance car races are organised. The winner (or maybe also a few of the best competitors) is (are) award...

06:49
7
Q: Important unpublished works in mathematics

H.C ManuI know Harrington is quite famous for unpublished works in computability theory and a friend of mine specializing in set theory says Woodin is also quite similar which led me to the following question: What are some of the most important/interesting works that were never published by the authors?

1
Q: Rom. 10.9-11; is confession unto salvation, an initial confession where one recieves life (i.e. salvation) or constant confession unto a deliverance?

ThatwemaybethepraiseofHisgloryRomans 10:9-11 (KJV) 9 That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved. 10 For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation. 11 For the ...

07:14
2
Q: What does the inverse sine function actually represent?

user386598I know that the inverse of sine is used to find angle measures x when given a sine ratio (opposite/hypotenuse). However, my question is more conceptual. I understand how one can use the inverse sine function, or inverse cosine or inverse tangent, to find a missing angle, but I don't know exactly ...

07:34
1
Q: Is the macOS Sequoia 15.3 update really just as large as its standalone installer?

AndreasOn Sequoia 15.0.1 System settings says the update to version 15.3 is 15.22 GB in size. I assume that's the download size. That's a lot for an update, so I looked up how much the standalone installer for the same version would use, and it's also 15.2 GB. What I expected to be an incremental update...

DIY
DIY
3
Q: How do I reinforce these pantry shelves?

ColinI have this well stocked pantry and have noticed a little bowing toward the center of the shelves. I’m worried that they may eventually collapse. Is this something to be worried about, or is this fine? If they need to be reinforced, what would be the best way to do it? I have a ton of tools, but ...

1
Q: Compounds of the form муж-[attribute], жена-[attribute] etc. journalistic style?

TruubehüeterI read the following sentence from иноСМИ. The sentence is a translation from a news article from NZZ, a German language newspaper. «Вместе с доходом жены-учительницы, которая зарабатывает примерно столько же, денег как раз хватает.» The expression „жена-учительница“ is used as substitution for a...

07:58
2
Q: LeetCode: Square a sorted array, maintaining nondecreasing order

Littlejacob2603I tried solving the LeetCode question like many others, trying to incorporate the O(n) time complexity requirement. Squares of a Sorted Array Given an integer array nums sorted in non-decreasing order, return an array of the squares of each number sorted in non-decreasing order. Example Input...

CS
CS
08:18
1
Q: BOOT1 pin for programming STM32F407

jlauferI have designed a PCB board using an STM32F407vgt6 MCU and am waiting for it to arrive. I was following a design online and added a switch on BOOT0 to control the logic level but BOOT1 is left floating. According to RM0090 Table 2, the BOOT1 pin is needed to select the MCU's boot modes and since ...

Law
Law
1
Q: Does immunity void the fifth ammendment?

EthanThere's a scene in 'The Blacklist' where a character is being interviewed about having been subpoenaed to testify in front of a grand jury. His lawyer quickly jumps in to say that his client will be taking the fifth to every question that is asked. After that, the investigator/prosecutor says "th...

4
Q: Citing an anonymous living individual

maliebinaMy essay (a paper for a class) deals with the ongoing struggles of a specific community which I happen to interact often with. Many are willing to include their statements in my paper (which would also corroborate it) but in fear of retaliation want to remain anonymous. The obvious issue is that ...

09:05
1
Q: Camera Projection Setup

The Vision TunnelCamera has been setup for projection modelling as per viewports screenshot below, however cannot get perspectives to match

 
1 hour later…
10:11
3
Q: The hybridization of carbon atom in methylene carbene (CH2:) and electron distribution between orbitals

Doc Ock In methylene carbene $(\ce{H2C{\bf{:}}})$, what is the hybridization of the carbon atom, as well as electron distribution in the different orbitals? I think since methylene has 2 hydrogens bonded to a carbon with a 'lone pair,' it should have $\mathrm{sp^2}$ hybridization. Then, does it have an...

TeX
TeX
10:35
3
Q: Unexpected difference with tracinglostchars, pdflatex vs lualatex

rallgTeXLive 2024, Linux. Here is the MWE. Compile (command line) with pdflatex and lualatex, to see the difference in behavior: \documentclass{article} % Using default font Latin Modern Roman at 10pt. % Advance width of .notdef character is .28em =28.pt. \tracinglostchars=3 % Immediately throw error....

10:55
5
Q: What does this mean about whistling implying someone might not be a woman?

Rand al'ThorThe short story "Nameless" by Rema Hmoud is told from the point of view of a pregnant woman surrounded by other women of her family. It's peculiarly unrealistic, with the entire pregnancy seeming to take only a few days, and I suspect it's meant as a satirical allegory about Jordanian society: th...

1
Q: Understanding usage of wordplay & proverbs within lyrics

lettucerApologies if this is off-topic or too subjective, but I'm currently trying to translate and interpret one of my favorite Vocaloid songs, 'Floating Shelter' (Lyrics) by ピノキオピー. Generally, I can assume that the song about hikikomori and one's mental state, but there are some parts within the lyrics...

 
3 hours later…
13:31
1
Q: Humans vs AI, is that a psychological bias?

GroovyIf our brains are just complex neural networks, trained throughout our lives on borrowed information, why is using AI to generate text considered 'cheating' or fake? Aren't we all just sophisticated AI systems, paraphrasing and remixing what we've learned? Isn't our brain just another neural netw...

2
Q: Is it possible to achieve a uniform grid after sculpting?

Mark RoeI have completed some basic sculpting around the edge of a simplistic pond object mesh using the grab brush with dynotope mode activated and its detailing set to 'relative detail' to try and keep the grid dimensions as uniform as possible. I then highlighted the mesh object that was subjected to ...

14:16
2
Q: Relationship between Factorization Homology and Context-free Manifold Calculus

Jiahao LiIn [Weiss][1], Weiss developed the study of context-free manifold calculus, which studies the presheaves over the $\infty$-category of smooth manifold. Conceptually, the study is to approximate presheaf as an amalgamation of its value over the disjoint union of disks with at most $k$ connected co...

14:42
7
Q: Is this Mega Millions Lottery Jackpot Win Legit?

JLeeHere's a clip from today's newspaper: In response to an anonymous tip, local police, working with officials at Mega Millions, launched an investigation into the jackpot won last month on October 31st. The winner, James Johnson (59) of Chicago, IL, is a close friend of long-time Mega Millions empl...

DIY
DIY
15:01
1
Q: Do these 33 year olds Marvin windows have rot and is the insulation all over?

Curioussam Do these 33 year olds Marvin windows have rot and is the insulation all over? I am asking you since a window replacement guy suggests us to replace these windows as their life is over. Thanks!

2
Q: how to increase the sound volume little by little

Marcelo GambaI'm tryng to increase the volume of a background sounds on my video that I'm editing but have to be smoth and little by little but I didnt have any sucess till now. Anyone could help me please? Thank you,

TeX
TeX
3
Q: Hook of the Inclusion arrow in tikz-cd oddly facing the wrong direction

ZestI've tried looking for solutions but didn't find any. I have the following commutative diagram (mwe) \documentclass{article} \usepackage{tikz-cd} \begin{document} \begin{tikzcd} 0 \arrow[hookrightarrow]{r} & A\arrow[hookrightarrow]{r}{\varphi}\arrow[hookrightarrow]{d}{\eta_1} & B\arrow{r}...

15:25
1
Q: sql server web on linux (ubuntu) - Server TCP provider has stopped listening on port [1433] due to an AcceptEx failure

MWMI have got a sql server web 2017 running on ubuntu linux (in Google cloud VM) - it's being used by a windows server instance with IIS over the local network on Google cloud VM. Randomly (once every 2-3 weeks), the windows server would lose connectivity to the sql server on linux instance. when I ...

15:45
1
Q: Why are TOTP seeds rarely leaked in data breaches?

DerekKnowlesUsually when a server data breach occurs, information that gets leaked includes usernames and password hashes, rarely do you see a data breach where 2FA TOTP seeds gets leaked alongside them. How come this is the case? I thought the server also needs to store the TOTP seeds to calculate the one t...

2
Q: What actor has been killed by the most alien(s)/fictional being(s) as part of movie franchise or ongoing TV series?

beichstBill Paxton was killed in the film franchises for The Terminator, Aliens, and Predator 2 and is, so far as I know the only actor to be killed by all three. That got me thinking. What actor has been killed the most times under the following? Died in a movie by an alien or other fictional being (i...

5
Q: How many times does Jack Harkness die?

Rand al'ThorJack Harkness, after his first few appearances in Series 1 of the 2005 reboot of Doctor Who, is an immortal character who keeps coming back from death, no matter how many times he's killed. How many times does he actually die, across Doctor Who and Torchwood (and any other shows where his charact...

3
Q: What's causing this wavy happiness icon?

Kyle PollardI'm playing Civilization VII at its default graphical settings and I'm noticing that when there's a unit underneath it, the resource icons appear wavy and seem to follow the unit: What's causing this waviness and how do I fix it?

16:08
1
Q: USB hard drive suddenly has no partitions?

gatorbackMy neighbor was trying to use his WD drive and it failed to mount to D:\ I connected to my Ubuntu 22.04 laptop: lsblk -o model,name,fstype,size,label,mountpoint1 failed to return any partitions for the USB drive. PNY CS900 2TB SSD sda 1.8T ├─sda1 ...

1
Q: If a Web page includes a CC BY-SA 4.0 licensed image, does modifying the page constitute modifying the image?

RichardThe situation: There is a Web page and an image from a third party (the image was not created by the owner of the Web page) is included in the Web page among other content. The image was made available under the Creative Commons Attribution-ShareAlike 4.0 International License. The attribution fo...

AI
AI
1
Q: Is bias in NN actually a sentience form?

Muhammad Ikhwan PerwiraIn simple artificial neural network, using bias or not, the performance is likely the same. So, it makes me wonder that the bias is actually a little form of sentience of AI? Yes, we can blame the overall bias come from the dataset source. But, what I refer is actually bias in hidden layer: $y=wx...

16:31
1
Q: Decide Equality of Closed Surfaces

Dannyu NDosObjective Given two closed surfaces (a.k.a. closed 2-manifolds), decide whether they're homeomorphic. Introduction In layman's terms, a closed surface is a finite-sized shape that resembles a flat plane everywhere (say, when magnified very much). Familiar examples of a closed surface include a sp...

16:53
1
Q: The same code in succesive order with different results, bright onboard led vs dim of the same led, Arduino Nano Every

NaturalDemonThe code below has a normal bright led on the 5th pin of port F while those on port B, 0, 1, 2 are dimmer. Even if you hold down one button and a moment later simultaneously press another button while releasing the prior you see the brightness change. a CMOS inverter is used to debounce all butto...

3
Q: Confusion regarding Japan tourist visa validity

AJknightI have got my Japan tourist visa(I am an Indian) it is valid from Feb 04th 2025 to May 4th 2025 and it says duration of stay is 15 days...What does all of this mean I'm new to all this?...Also my trip is planned from 24th April(arriving into Japan) to May 5th(leaving Japan at 2:00pm)..I submitted...

DSP
DSP
1
Q: Intuitively, why does time scaling cause a system to be time-varying?

NeotodFirst of all, this question is different than other similar questions, like this in which the questioner has a problem with the mathematical proof. one property of systems is time variant / time invariant, which basically mentions if a system's behavior changes w/ time, that means same input give...

CS
CS
17:14
1
Q: Latch bus with FPGA issues

KnowledgeI have an FPGA that send data from a shared bus(the bus called COM(0:15)), which is connected to three buffers. Each buffer is connected to the same bus, and the FPGA controls which buffer will drive the output signals using the OEn signal( the output signals runs from 0 to 47 and the signals are...

1
Q: What law of probability is being used for deriving law of motion of distribution

manifoldI'm studying this book and in page 788 (827 in the pdf page count) they show a law of motion for a joint probability distribution (image attached). Basically, we have the following elements: a state space $A\times S=\{\bar{a}_1,\dots,\bar{a}_n\}\times\{\bar{s}_1,\dots,\bar{s}_n\},$ and there exis...

CS
CS
17:37
2
Q: Identify connector (Aputure Amaran 672c)

Jackie JimI got a used 672c studio light without a power adapter and would like to buy the power connector for it. Please help identify its type, I've never seen anything like this. The diameter is slightly bigger than a standard PS/2 keyboard connector.

CS
CS
18:22
1
Q: How do spectral lines block a black body curve?

Somnambulist So I am coding up a simulation of black body radiation coming from stars, and I want it to look kinda realistic, so I want to add spectral lines. My question then is if my implementation is correct. Currently as I've set it up, the function value at any spectral line is the black body radiance, ...

1
Q: Voltage monitoring with one N-Channel MOSFET or with One N-Channel and one P-Channel Mosfet

GustoIn all my designs that I need battery monitoring I have used the following circuit (borrow from one of Nordic devkits, however this circuit is from one of my schematics), but I am thinking to use the following circuit (it is also from one of my schematic). Do you notice any preference between on...

2
Q: What exactly makes a region tropical savanna or arid?

Jake AntillesI'm currently interested in designing a realistic climate and weather simulation for my game worlds. However, some doubts arise as I attempt to apply the Koppen classification. Suppose there is a region with evenly less than 60 millimeters of rain each month and with monthly temperature all great...

18:46
3
Q: Can a flutist make an accent during a legato?

MarkWriting a music for flute & piano, I wrote some fragments like this one for the flute: the tempo is about 𝅘𝅥 = 112-114. I wonder if is it possible to play the accents within the legato. I'm aware it is possible when playing slowly, but given the speed of the 16th tuples I'm not sure if the notat...

1
Q: Can you solve a BDMO problem containing circles?

Geometry99Problem: My attempt: At first, I tried to use normal geometry. then, I couldn't solve it. After that, I tried to use coordinate geometry. The equation for the red circle is $x^2+y^2=r^2$. The equation for the green circle is $(x+10)^2+y^2=r^2$. Solving for $x$, we will get $x=-5$. then solving f...

 
1 hour later…
19:52
1
Q: Can kings be adjacent?

LatteCMThe kings can probably touch, as if you protect the square adjacent to the opponent's king. Your king can go there as capturing it with their king puts them in check due to the defending piece and that means the capture would be illegal, stopping it from being check, but the kings are adjacent, w...

2
Q: Change of stress in <verb>-vous composites, e.g. voulez-vous

parmlThe stress in vous voulez and vous pouvez is definitely on the rightmost syllable (oxytone), in this case the [e] sound. However, I perceive the stress on these words changes to the first syllable when they're used in the question forms voulez-vous and pouvez-vous. Please note the examples on the...

20:14
2
Q: Definitions of pure state on operator system are equivalent

mathloverLet $\mathcal{S}$ be an operator system in a unital C*-algebra $\mathcal{A}$. Let $\phi:\mathcal{S}\to\mathbb{C}$ be a state. Some books define a pure state as follows: $\phi$ is pure if and only if it is an extreme point of the positive cone (i.e., $\phi$ can not be written as a convex combina...

4
Q: Thorn forking in simple theory

Antongiulio FornasieroLet T be a simple theory. Does thorn forking and (the usual) Shelah forking coincide? If I understand correctly, they do coincide if T is stable. I'm particularly interested in the case when T is both simple and super-rosy of rank 1.

1
Q: What is this white grainy stuff on top and bottom of my hibiscus leaves?

Sash_007what is this white grainy stuff on top and bottom of my month old repotted hibiscus leaves and i see ant activity although flowers blooming I sprayed a kaka bio stimulant today (its composition Natural lactones: 0.4% Natural alkaloids: 0.2% Aqueous media: 99.4%)..was neem oil a better alternati...

8
Q: Viscous flow around the Mandelbrot set

Alex Trounev7 years ago, I built this picture and constructed mesh Needs["NDSolve`FEM`"]; reg = ImageMesh[ Image[RegionPlot[ Abs[Nest[(#^2 + x + I y) &, x + I y, 15]] > 2, {x, -2, 1}, {y, -3/2, 3/2}, Frame -> False]]] bmesh = ToBoundaryMesh[reg]; coord = bmesh[[1]]/200; element = bmesh[[3]]; {x...

CS
CS
20:36
1
Q: Live vs. Neutral wires

sct209In every AC plug, there is a "hot" wire and a "neutral" wire. What makes the former the dangerous wire and the neutral one the "0V"/safe one? There are some things confusing me. With AC, voltage and current flips negative/positive every half-cycle, meaning that current will flow OUT of ground. I...

2
Q: Looking for exact diode reverse saturation current value

nuggetheadI am studying diodes. I would like to get better at analyzing circuits with diodes. I know there are several models available, from ideal diode model to constant-voltage models and models that include a small resistance. These models are not very accurate, unfortunately. The best model is t...

2
Q: What do our sources say about victimhood?

Rabbi KaiiWhat teachings do have on how to deal with being a victim? I'm sure we have very rich sources - the more authoritative the better, but don't hesitate to bring a source you find relevant, interesting and useful. The reason I ask is because it seems that there is a voice in the world that wants to...

1
Q: Practice methods for learning to play melodies on an instrument?

ScoungedI'm a bit unsure exactly how to phrase this question, but here goes. I recently received a chromatic accordion as a Christmas gift (C-system on the melody side, stradella system on the bass side), and since I'm somewhat experienced with piano accordions, the thing I want to focus on in particular...

DIY
DIY
21:21
1
Q: Acoustic insulation of double glazing vs vacuum glazing

Daneel OlivawI am requesting quotes for replacing wood sash windows in a UK house (conservation area). My goal is to improve both thermal and acoustic insulation given right now I have single glazing. I have been given quotes for two different types of glasses: Double glazing: 2 sheets of 4mm Clear Pilkingto...

1
Q: Equalising edge loop distances

McGregzI've encountering an issue with a model of piled rope and hoping someone can help me here. I want to achieve fairly equal spacing on the loops of the rope as it's currently warping the uv mapped image. You can see in the image provided what's currently happening. I found there was an add-on calle...

21:45
3
Q: Visa refusal what’s next?

Shelley Van der bolMy Egyptian husband applied for a family visit to Spain. My father provided the invitation letter, the stay and all the costs. We gave his bank statement (with enough money), we provided the stay, etc. All documents they required were there. But yet they denied the visa with the reason “The purpo...

1
Q: How can I treat a brinjal plant that is unwell?

S F N ZilanIn the given image, you can observe that although the eggplants (brinjals) are abundant, the tree appears to be severely weak. I have applied the following fertilizers: Muriate of Potash Urea DAP (Diammonium Phosphate) Magnesium Sulfate (applied directly to the soil, not sprayed) TSP (Triple Supe...

TeX
TeX
22:08
1
Q: Unexpected alignment in a box modified with LuaTeX

gxonoI'm experimenting with LuaTeX. I wrote a script to number lines, but I don't understand why the boxes are aligned to the left, even though I have an \hss on the left in the box definition. \documentclass{article} \usepackage{lipsum} \usepackage{xcolor} \usepackage{nodetree} \usepackage{luatexbas...

3
Q: Seeking clarification for the domain of Gamma Function

Yunxuan ZhangBackground Information For the Gamma Function in the real plane, we have the following definition Definition. $\displaystyle \Gamma(x) := \int_0^{\infty} e^{-t} t^{x-1} dt \quad (x>0)$ and from this definition we can derive the functional identity Functional Identity. $\Gamma(x+1) = x \Gamma(x...

CS
CS
22:28
1
Q: Why is there a disagreement in Versions of 1 Cor 15:8?

Kadalikatt Joseph SibichanWe see various Versions presenting 1 Cor 15: 8 in different phraseology, for instance: Douay-Rheims Bible And last of all, he was seen also by me, as by one born out of due time. Catholic Public Domain Version And last of all, he was seen also by me, as if I were someone born at the wrong time...

CS
CS
22:50
3
Q: Toasted PCB region of power amplifier

ShaggiI was going to replace a relay on an Alesis RA-150 stereo amplifier (a common failure mode) when I noticed some scorched 2W resistors (R401 and R402) and what appears to be an almost burned area of the PCB. While I can replace these, I'm wondering about the function of this area and why it could ...

2
Q: What is the precedence of logical operators in Wolfram Language?

Tom BarsonI'm taking the enjoyable (but very high-level) Wolfram U course in Discrete Mathematics. That course gives the logical operator precedence as ()>\[Not]>\[And]>\[Or]>\[Implies]>\[DoubleLeftRightArrow] but doesn't mention the NAND, NOR, or XOR operators in this context. We are given the exercise t...

23:35
3
Q: What's the history behind this abandoned airport in Wingate pass Califonria?

Joshua Location: 35.748165, -117.024419, source. The runway is immediately apparent on the satellite photos; but everything has decayed so far the closed runway marks cannot be seen. Attempting to land would most likely end in disaster due to the wash cutting across the runway. But the airport has some...

3
Q: Why is a system without axiom D valid?

MingI have read that some stronger systems of modal logic such as system D used in deontic logic uses an axiom D, namely D: □p → ◇p But I do not see why axiom D is not a logically valid statement in the weakest form system K. Suppose the negation is false, In w0, ¬(□p → ◇p) □p ¬◇p □¬p (by double...

CS
CS
23:57
3
Q: Where can I find the new German election law?

Frederik Ravn KlausenElections in Germany are coming up and after trouble with increasing parliament size the government has changed the election law in 2023 to prevent that from happening. This changed was then amended by the Bundesverfassungsgericht in 2024. I can find a lot of explanations also some official one e...

5
Q: Can we find infinitely many 5-connected claw-free planar graphs?

Licheng ZhangIn Plummer’s 1989 paper Claw-Free Maximal Planar Graphs (Theorem 2.3 (d)), we can see that the Icosahedral graph is the only 5-connected claw-free maximal planar graph. Now, if we remove the maximal condition, is it still possible to find a second 5-connected claw-free planar graph? Further...

3
Q: Plato's allegory of the divided line and truth

VT GIn Republic, Plato mentioned arriving to the intelligible realm from the visible realm through philosophical reflection and dialectic, and also above ("I mean what reason itself grasps by the power of dialectical discussion, treating its hypotheses, not as first principles, but as genuine hypothe...


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