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ELL
ELL
00:12
2
Q: If we can say "roomy jackets", can we say "a roomy shirt"?

Loviiicollinsdictionary.com: If you describe a piece of clothing as roomy, you mean that you like it because it is large and fits loosely: roomy jackets On hinative.com two American English speakers said "a roomy shirt" is unnatural. Why is "a roomy shirt" unnatural whereas "roomy jackets" is natural...

4
Q: Calculating the heat of reaction between sulfuric acid and sodium hydroxide

user10059620For my lab report I have to calculate the theoretical heat of reaction $\Delta H_{\text{rxn}}$ between sulfuric acid $\ce{H2SO4}$ and sodium hydroxide $\ce{NaOH}$ using their heat of formations. The reaction I have is $$\ce{H2SO4 (aq) + 2NaOH (aq) -> Na2SO4 (aq) + 2H2O (l)}$$ Now because the sulf...

4
Q: Probability distribution of sum of many differently weighted coins

ZorgothImagine that we have $100$ coins, which each have a random weight between $0$ and $1$ $\left(~\mbox{but we know the weights}~\right)$: That is to say, we have $100$ known numbers $p_{1}, p_{2},\ldots, p_{100} \in \left[0, 1\right]$ such that coin $n$ has probability $p_{n}$ of flipping heads, w...

00:54
2
Q: Estne in lingua Latina verbum pro die ante heri?

FlatAssemblerEstne in lingua Latina verbum pro die ante heri? Scitis, ut Croaticum verbum "prekjučer" (quod legitur "trans-heri").

1
Q: Show don't tell with a blind character

something_Funny368I'm writing a story in a first-person format, where the main character is blind, and I'm struggling with the 'show don't tell' (SDT) rule. I was wondering if there was any way I could kind of work around it in a way. There is a limited form of magic in the world and I've used it to implement a wa...

RPG
RPG
3
Q: Does Kineticist's "Armor in Earth" impulse retain it's +1 Dex bonus at 3rd level?

JosieAs the title says. The original armour has a +1 Dex cap, but when it becomes heavy armour it only says it's AC bonus becomes +5 and nothing about it losing it's Dex bonus. The armour becomes heavy armour. It's AC bonus becomes +5, and it gains the bulwark armour trait. I would say since heavy a...

01:17
1
Q: Install TP-Link Archer T2U V3 driver in Ubuntu without internet

A. BhowmickI'm using archer T2U v3 in my 14.04 and 16.04 system flawlessly as the driver was directly provided by TP-Link from their website https://www.tp-link.com/en/support/download/archer-t2u/#Driver (Kernel version 2.6.18~5.0) According to their PDF link https://static.tp-link.com/2018/201812/20181207...

Law
Law
5
Q: What happens to a trial if the presiding judge is unable to finish the trial?

NzallWhat happens if, during an ongoing trial, the presiding judge dies, is injured, or otherwise is unable to finish the trial?

2
Q: Closed form for sum of series with exponents in a geometric progression

zxenI want to find the sum of this series in terms of $x$ and $n$. $$\sum_{r=0}^{n-1}{x^{4^r}} = x + x^4 + x^{16} + ... + x^{4^{(n-1)}}$$ I can't really think of a way to approach this. I think this could be some form of hypergeometric series? Does this even have a closed form? I tried using approach...

1
Q: Why does filling up a large char array cause a crash? (ESP8266)

Daavee18Here's the code in question: void setup() { Serial.begin(115200); Serial.println(); char test[5000]; int i; for (i = 0; i < sizeof(test)-1; i++) { test[i] = 'x'; Serial.println(i); } Serial.println("Going to print string: "); test[i]='\0'; Serial.println(test); } v...

01:39
1
Q: Brocard's Conjecture Candidate Finder

DairFor fun I wanted to investigate Brocard's Conjecutre. That is, does there exist \$n, j\$ such that \$n! + 1 = j^2\$. The method I use takes inspiration from looking at divisibility rules which I explain in the doc comment at the top of my Rust file, but to reiterate at a high level: The idea is s...

2
Q: Information can't take an s

SybuserI suggested an edit which was rejected by 2 reviewers. I don't know why it was rejected but it could be because I removed 's' to 'informations'. https://stackoverflow.com/review/suggested-edits/35934740 Does this mean that information is always a mass noun? Apparently other languages treat it as ...

CS
CS
1
Q: Where did Jesus perform the “Feeding of the 4,000"?

Jason_Matthew 15:29-39 NKJV 29 Jesus departed from there, skirted the Sea of Galilee, and went up on the mountain and sat down there. 30 Then great multitudes came to Him, having with them the lame, blind, mute, maimed, and many others; and they laid them down at Jesus’ feet, and He healed them. 31 So...

2
Q: In a GLM model with a gamma log link, how to interpret a negative coefficent of a dummy variable with a continuous response?

user3334472I am a little confused with how to interpret a negative coefficient in a GLM model using the Gamma family with a log link. My response variable is continuous (with no zeros) and right skewed and represents per-capita energy use. Because of its distribution I am using a gamma with a log link. I...

RPG
RPG
5
Q: Are Eidolons Proficient in Perception?

brandonChecking through the rules for summoner eidolons, I couldn't find any mention of them having a proficiency like training in Perception by default. The online version of the rules don't seem to differ from the Secrets of Magic book on this, and otherwise it seems that they'd be one of the only cas...

CS
CS
02:03
5
Q: Does a time varying electric field always generate a Magnetic field?

RishikeshI have come across this problem from 200 Puzzling physics problems A charged spherical capacitor slowly discharges as a result of the slight conductivity of the dielectric between its concentric plates. What are the magnitude and direction of the magnetic field caused by the resulting electric cu...

2
Q: Is there an easy why to store yogurt and have it maintain its consistency?

User65535I have recently got into making low fat, high protein and low effort yogurt. My procedure uses a single 4 pint dish for the whole process, starting with "cooking" the milk in the microwave, through the fermentation stage in a yogurt maker, to the storage stage between helpings. I add quite a lo...

02:23
1
Q: Huffy Sea Pines from the late 70's.The hub will slip

BraidynWhat should I do when I hit bumps or put on the pedals and it will switch gears momentarily

2
Q: number of ways a positive integer n can be expressed as a sum of k natural numbers under a certain ordering condition

issam el mariamiI have a question that I can't solve for the moment. Suppose we have a fixed positive integer $k$, now consider $k$ natural numbers $x_1,x_2,\dots,x_k$ such that they satisfy the following condition (*): $$0 \leq x_1 \leq 1, 0 \leq x_2 \leq 2, \dots, 0 \leq x_k \leq k.$$ I appreciate any help fro...

4
Q: Doctor Who episode where the Doctor and Clara split up and hide from an alien that can hear their thoughts

emilyPlease does anyone know the Doctor Who episode where the Doctor (not sure which one) and I think Clara are on a spaceship with another lady too. They split up to try hide from the alien who can read/hear their thoughts. The Doctor tells Clara how difficult it is to not think of anything, to have ...

02:43
1
Q: Unable to install prokka using homebrew or conda

Lucy KellyI have tried to install prokka using homebrew using the code brew install prokka (I also tried brew install brewsci/bio/prokka) and it gave this error: curl: (7) Failed to connect to mbio-serv2.mbioekol.lu.se port 80 after 75009 ms: Couldn't connect to server Error: prokka: Failed to download re...

TeX
TeX
2
Q: How to change default "and" in amsart title

baristocronaI am writing an Spanish paper so I'd like to change "and" default conjuction for "y" in the command \maketitle in the class amsart. \documentclass[10pt]{amsart} \usepackage[spanish]{babel} \author[1]{Práxedes Mateo Sagasta }% \author[2]{Antonio Cánovas del Castillo }% \title{La Campana de Hues...

1
Q: LWC Wired method not working

LiamI have a controller with a apex method which takes a user id. This controller is used in a LWC component. Here is where I am trying to call the apex method via a wire method. This is done in a Experience Site where I have placed the LWC component which is the only component on the page. The user ...

DIY
DIY
2
Q: Next door neighbor's smoke alarm keeps chirping every 30 seconds

Dr. AlphaMy neighbor in the next house has a detached garage and there is a smoke alarm in that garage that is chirping every 30 seconds for a few days. The garage has an open window facing my house with a distance of about 5 feet, so the noise is pretty loud and disturbing at night. I talked to them abou...

2
Q: The Shelah on doing teshuvah when eating

ShmuelI heard in a shiur from Rav Daniel Glatstein that the Shelah HaKadosh explains that your table is like the mizbeach and your eating is like a korban, and every korban needs viduy. So, the Shelah says, therefore before you eat, you need to say viduy and do teshuvah every time you are partaking of ...

CS
CS
03:32
1
Q: Singularity of a black hole: point or solid sphere

Hritik RCA black hole is defined by its event horizon. The event horizon has a Schwarzschild radius of, $$r_s=\dfrac{2GM}{c^2}$$ Technically, this means that any body of mass, $M$, with a radius smaller than its Schwarzschild radius, $r_s$, can be a black hole. In other words, a collapsed star which forms...

2
Q: What is the correct particular solution(and solved coefficients) for this non-homogenous recurrence relation?

Rastislav NemecI need some help with the following non-homogenous recurrence relation, $$a_{n+3} - 3a_{n+2} + 3a_{n+1} - a_n = 3 + 5n$$ The characteristic equation is third order with repeated root $1$. I know that our homogeneous solution is $a_n^{(h)} = A + Bn + Cn^2$. We were told that this should be our par...

03:54
2
Q: Civicrm install on Drupal 10 -- packages downloaded but cv command not found for installation

Tiffani ChinTrying to install civi on a brand new Drupal 10 site (have used Civi for years and have installed before, but back in the Drupal 5, 6, 7 days without any of these new tools). I'm pretty well conditioned to do things through the web-interface, which means I'm struggling more than I should with the...

04:17
1
Q: Can a cube-shaped(ish) world have uniform(ish) gravity when composed of ideal materials, including antimass?

DDriggs00I'm trying to design a cube world while sticking somewhat closeish to real physics, but am not entirely sure about the physics involved with objects of non-uniform density, specifically as relates to increasing gravity near the corners and edges. Is it possible to make a cube world (with rounded ...

 
1 hour later…
05:25
4
Q: Can somebody explain to me how this circuit actually works? (Linear voltage regulator and PNP transistor as current boost)

Joonas Joensuu This is from the datasheet of LM2931. What baffles me is how this actually works. The LM2931 drops the voltage to 5 V and I assume the 68ohm resistor is there to drop the voltage around 0.7 V to open the PNP. Basically I can’t understand how the heck the PNP let’s through current at only 5 V if ...

05:45
3
Q: Why does the USA ask NATO partners to donate Patriot missile systems to Ukraine and not donate them itself?

ArwenzWhy does the USA ask NATO partners to donate Patriot missile systems to Ukraine and not donate them itself? The Pentagon says it will "rush" Patriot air defence missiles and artillery ammunition to Ukraine as part of its new military aid package. However Patriot systems for launching the missile...

4
Q: What is this Nintendo 64 DD flyswatter game from?

StevoisiakAt 4:57 of DidYouKnowGaming's video on rumored Mario games, the background footage shows flywatter minigame taking place in a bedroom with a Nintendo 64 DD playing Super Mario 64. At the time, they were discussing the Mario Artist games. A caption in the corner credited the footage to YouTube use...

2
Q: Solution to IMO 2020 P2?

user1070280I'm asking to see if my proof of the IMO 2020 P2 is valid. It doesn't follow the typical solution provided so I just wanted to ask if it's correct. The question asks to prove that for all $a, b, c, d$ where $a\geqslant b\geqslant c\geqslant d\geqslant 0$, and $a+b+c+d=1$, that $(a+2b+3c+4d)(a^ab^...

2
Q: Sum of iid random variables

ABlack Iid random variables $Y_1, Y_2, \dots, Y_{50}$ take only the values $0$, $1$ and $2$ with probabilities $\mathbb{P}(Y_i = 0) = \mathbb{P}(Y_i = 1) = \frac{4}{9}, \mathbb{P}(Y_i = 2) = \frac{1}{9}$. Find the probability that the sum of these random variables will be $45$. Now here's my idea: let...

5
Q: Question regarding multiplication table of group of odd order.

DebuQuestion Let $G$ be a group of odd order. Then show that the diagonal element of it's multiplication table contains each element only once. Attempt What I get ultimately is that $a^{2}c^{2} = e$ for some $a,c \in G$. And if my group were abelian, it would yield that $c$ is the inverse of $a$ but ...

1
Q: Proof rotation matrix is symmetric when Trace is -1

maxicalFor a rotation matrix on SO(3), IE 3 dimensional, if the trace is -1 how do you prove it is symmetric? Intuitively it makes sense as this is 180 degree rotation but I don't see an obvious proof.

06:31
1
Q: Attachment not saved for Contribution

FullStack-DevWe have a custom field of type file for a contribution. We use this field to store invoices for payment. After we did the CiviCRM upgrade to 5.73.1, the field stopped saving the file. We upgraded CiviCRM from 5.65.1 to 5.73.1, is there anything changed that we are not aware of to make the field a...

06:51
1
Q: How do I copy cells in a column and duplicate by a multiplier value in separate cell

JamesSay I have 5 cells in column a1:a5 and in b1 I have a multiplier number say 20. How do I copy cell data a1:a5 to appear in the next 20 columns c to v ?

1
Q: How to handle corrosion on brake pads screws on Shimano road bike disk brakes?

Benedikt BauerRecently I wanted remove the brake pads of my Shimano 105 disk brakes to check their wear state. When I was about to open the screw which holds them in place I found that some white crust had accumulated on the screw - possibly remains from my winter rides. As I tried to open the screw on the rea...

DIY
DIY
2
Q: I lost the keys for a gate's lock. Where can I find a replacement cylinder or how can I get new keys?

peoroI lost the keys for a gate's lock and I need to find a replacement cylinder or a way to craft new keys. The cylinder has a peculiar shape. I couldn't find any brand on the gate or lock. I did find a similar lock online with the name "PREFER 6610", but the whole lock piece doesn't seem compatible ...

TeX
TeX
07:14
2
Q: Text Overflows The Footer

Barbaros Teoman KosogluHere as you can see the texts are overflowing the footer, I have no problem with the header. I tried setting footer height but it didn't work. \documentclass{article} \usepackage[a4paper, margin=0.78in]{geometry} \usepackage{fancyhdr} % For custom headers and footers \usepackage{multirow} % For...

CS
CS
1
Q: What is the name of these old colored indicator bulbs and are they still manufactured?

Noel WhitemoreAs an electronics project, I would like to create a PCB that generates random blinking lights similar to the computer panel props featured in late 60s/70s era television series: The scale is possibly deceptive from this screenshot, but the lights were probably about 10mm overall in diameter. I a...

GIS
GIS
1
Q: Making buffer around crossing point on lines intersection in QGIS

sttipaI have two line layers A and B. I need to create a point at the intersection of these layers (which is not a science using "Line intersection"). Is there a possibility to draw a new one on line B at the point where it intersects with line A layer following line B on one and the other side of the ...

08:01
2
Q: Flux calculation - what did I do wrong?

MSUThe exercise asks to calculate the flux of $\mathbf{F}=(4x,4y,z^2)$ through the surface $x^2+y^2=25, 0\le z \le 2$ I calculated using Gauss' theorem and I obtained $500\pi$, which is the correct answer. The exercise also asks to calculate it as $$\iint_S \mathbf{F}·d\mathbf{S}=\iint_S\mathbf{F}(...

08:22
1
Q: Is it allowed to copy seforim pdfs?

Yisroel SanowiczI want to copy seforim (for example the Artscroll Shas) and I know people with PDFs of those seforim. Am I allowed to copy them? Is it genaiva?

 
2 hours later…
10:14
2
Q: Nuance of masu-stem+あぐねる

whatyouexpectFrom my dictionary, masu-stem+あぐねる seems to imply that you get tired of doing an action because you have met a setback that prevents the result you hoped for from occurring despite various efforts. In addition, it seems to imply this is based on an accumulation of a realization that things are no...

 
1 hour later…
11:19
2
Q: How do we know for sure that Morus nigra (black mulberry) is tetratetracontaploidic (has 44 copies of each of its seven chromosomes)?

uhohThis answer to Is there any particular reason to choose strawberries for DNA extraction? explains that strawberries are octoploid. Wikipedia's Polyploidy and Morus nigra; Description both point out that Morus nigra or black mulberry is tetratetracontaploidic and cite two sources that both point t...

1
Q: Cannot fully delete Boo app memory from iPhone

Julius HamiltonThe Boo app is stuck in sign up mode and I want to log in to my account instead. When I delete the app and reinstall, it opens in sign up mode. It clearly remembers that I was in sign up mode from before. I looked through my settings and see no way to clear the app’s cache or anything. Does iOS g...

ELL
ELL
11:43
1
Q: Why did the authors use the phrase "the quantity of people" in these examples?

an IELTS learnerI always thought we don't say "the quantity of people", but to my surprise, there are cases when people do use it. Look at these examples: The quantity of people losing their jobs is still on the rise. Huffington Post What is essential here is not the quantity of people who see the work, or eve...

1
Q: How do I find the whole number (n) that when multiplied by (m) will be closest to (x)?

AJ_SmoothieI've designed an apparatus that uses stepper motors, and they are linked together so that when armature A turns, it consequently moves armature B by a ratio of 1/4. In order to keep armature B in the same position, for every 4 steps stepper A takes, I need stepper B to take 1 step. I want to "round"

12:03
1
Q: "[demonst/subj pronoun] is/are [possessive adjective] [singular noun]."=?="[demonst/subj pronoun] is/are one of [possessive adjective] [plural noun]."

Simon MI also want to know how this works for the interrogative sentences which are their respective counterparts, though I do imagine it would make no difference whether we consider the interchangeability of "[demonst/subj pronoun] is/are [possessive adjective] [singular noun]." and "[demonst/subj pron...

1
Q: Would it count as a story if nothing bad happens to the character anywhere in the story?

RealWorldScopeSo most stories follow this simple rule: Hardship occurs to main character and main character attempts to get through hardship. Character either gets through hardship or other hardship happens and plot ends with main character "hanging off cliff" (cliffhanger) But what if nothing at all bad happe...

12:25
3
Q: Better way to add attributes to an enum in Rust for code scalability

rafaelgdgsI watched a YouTube video (https://www.youtube.com/watch?v=z-0-bbc80JM) talking about the power of enums in rust for data modelling. In the video, there's an example of a state machine of a simple Mario game using enum and match to define possible states and transitions. I implemented the same c...

DIY
DIY
3
Q: Removing Shelf for Electrical Panel Clearance

Tom ChenI’m getting solar panels installed, and the electrician who was here today mentioned that the inspector will need a 3 ft clearance in front of the electrical panel. The problem is, there’s a shelf mounted to the wall directly beneath the panel, and I’m not sure how to go about removing it. The sh...

2
Q: Where does the Mentat, Thufir Hawat, go in Dune Part two?

Yu ZhangFor most of the major / minor characters from Dune, we learn about their fate in Dune Part two. For example, there is a high ranking Atreides military officer, a minor character, who reminds Duke Leto that he needs to go inside to protect himself as a storm is coming; after being captured, he is ...

TeX
TeX
13:10
1
Q: Make equation counter follows customized counter

HRCObjective Hi. I define a counter, say, no for my customized commands, such as \newcounter{no} \counterwithin{no}{chapter} \newcommand{\no}{\refstepcounter{no}% \theno} \newcommand{\df}{\normalfont{\textbf{Definition \no}}\;} Now I would like the equation counter (\theequation) f...

2
Q: Is nitroglycerin synthesis within human digestive system from eating soap possible?

Ivory427eCould you make nitroglycerin by eating large quantities of pure glycerine soap? A quick google search told me flatus are 59% nitrogen, but I couldn't find anyone else with my exact question (which makes sense). In short, is it possible to make nitroglycerin through some human digestive process by...

13:55
2
Q: How can I Align a Flat Surface to Three Vertices?

andioI have a grid object (or flat surface) and 3 vertices. I want to align (move or reorient) the surface to 3 points/vertices so the 3 points should be on the surface. How can I do this?

1
Q: Accessing Custom Layout Workspace Properties from Python

Len WangerI am trying to read custom property data from a blend file using Python and Blender v4.1. In the model, custom properties (e.g. an Integer property called "ASSET_ID") was added in the Layout Workspace. I can access the object in Python using the bpy module using a command like: o = bpy.data.obje...

1
Q: Geo Nodes - Mark selected Edges Sharp

STRnineI am selecting edgeloops with Geometry Nodes based on index and the Preview node shows me the expected behavior, it marks the two loops I'm aiming for. However, now I want to set those two edge loops as sharp, by inputting the selection into the Set Shade Smooth node. It does not behave how I wo...

14:41
2
Q: Fantasy book series about a girl with magical red hands

Hello 1814Read a three book series where the main character was a girl with red hands. Her hands were magical. Was a while ago now… 20 years?! One detail I remember is it included a group that lived on the tops of buildings and used the rooftops and spires to move around. Help! This has been bugging me...

ELL
ELL
15:26
3
Q: What word would you use to describe this figure: "20 per 1000 people"? A proportion?

an IELTS learnerWhenever I encounter figures in sentences like: "The number of artists in this city is 20 per 1000 people." I just don't know what word to use. In my mother tongue, there's a very specific word which describes this kind of figure, but I'm not sure what's the equivalent English term. So, what wo...

RPG
RPG
1
Q: Is this "School of the Wyrm" wizard subclass I found balanced?

User 23415I found this wizard subclass in [this document] on DMsGuild, and I'd like to know if it is balanced compared to the existing classes. School of the Wyrm Knowledge of the Wyrm Beginning at 2nd level, you gain proficiency with the Arcana skill, and you can speak, read, and write Draconic. Your pro...

15:45
2
Q: Academic advisor asks to rewrite text (too?) many times

theWrongAliceI have to write a report about my academic progress every year, upload it in my university account (before May 15) and schedule a meeting with my thesis committee (before May 31). I started working on this report in the beginning of April. There are no guidelines for this report, but from other P...

1
Q: Is this idea for secure password storage a good one?

security_paranoidBeing interested in security, hashing in particular, I thought of a strategy that could either help or compromise password security. The main way to ‘break’ hashes is to brute force them. So, while sometimes it is hard to tell, most of the time you can guess or at least shortlist a few different ...

1
Q: Why isn't LD_PRELOAD disabled by default in Linux?

Egor SozonovThe Linux dynamic linker includes a mechanism of dynamically loading arbitrary code into every process using the LD_PRELOAD env variable and the /etc/ld.so/preaload file. This sounds dangerous, and is dangerous. As a recent example, the Windigo/Ebury malware relies on it: https://github.com/eset/...

2
Q: Force non-interactive `apt-get install` to fail on config file conflict

Florian BruckerI'm doing unattended / non-interactive package installations via DEBIAN_FRONTEND=noninteractive apt-get install -y my_package This works as attended in most cases, but still gives me an interactive prompt if there is config file conflict, e.g. something like this: Configuration file '/etc/foo' ==>

2
Q: Are there any completely, or 'true', Mendelian traits that do not display any polygeny at all?

gzktsRecently, I learned about polygenic traits and it got me wondering, are there any truly Mendelian traits where the trait displayed exists in a total binary? I have looked at some questions on the forum and this one is close enough, though I suspect that the degree to which ear wax is dry or wet w...

5
Q: Order of the "children's card shuffle"

Dominic van der ZypenMotivation. My eldest son thinks the following procedure is a "perfect shuffle" for a deck of cards: Take the first card, put the second on top of it, put the 3rd below cards 2 and 1, put the 4th on top of the growing stack, the 5th below, etc. General formulation. Let $S_k$ be the group of permu...

2
Q: convert a problem into problem hamiltonian

Maths_hawkI want to ask how can I convert any combinatorial optimization problem nto Problem Hamiltonian. Because in order to solve an optimization prob. on quantum hardware (IBM's Qiskit) first we need to convert them in this form. Or is there any way where I can load an LP file and then convert them into...

15:48
1
Q: how much the pickup can influence the 'quality' of a pinch hamonic

BCArgI have two guitars, one Ibanez RG 550 with a Dimarzio tone zone and a Jackson RR5 with a Dimarzio X2N. Both the guitars as well as the pickups are of great quality. I have noticed that the pinch harmonics on the Ibanez sound just better. By 'better', I mean they sound louder and more clear, with ...

3
Q: Prime radical of a ring

ChaudharyLet $\mathbb{Z}$ be the ring of integers and $a,b,c \in \mathbb{Z}$. Consider $R= \Bigg\{\begin{pmatrix} a & c\\ 0 & b \\ \end{pmatrix} \big| a-b\equiv c\equiv 0\mod2 \Bigg\}$. I have to find the prime radical of this ring $R$. I know that prime radical of a ring is the intersecti...

6
Q: Expected Number of Flips and Probability in a Coin Toss Experiment

prob1 yumaI'm currently studying probability and I've come across a problem that I'm finding quite challenging. I would appreciate any help or guidance. Problem Statement: A fair coin is continually flipped until both heads and tails have appeared. I need to find: (a) The expected number of flips (b) The p...

1
Q: Where to find chess videos where an expert explains their moves real-time

DoubtI have very much benefitted from Simon Williams' "Longer Games" playlist, where he plays various opponents with 15 minutes per side, all the while sharing about what he is thinking. But are there other playlists like this? I am not looking for blitz games, but games of at least 10-minutes per sid...

 
1 hour later…
TeX
TeX
16:53
5
Q: Simply Adjusting the Position of Dashed Lines in Nicematrix Package

Prince ChenI encountered a problem with the horizontal dashed line created by the nicematrix package in LaTeX. The line is a little close to the bottom of the matrix, overlapping with the elements of the second row. Is there any simple and default solution in nicematrix to adjust the dashed line position wh...

1
Q: How to Fetch Only Template-defined Fields Using GraphQL

GaganI'm currently using Sitecore GraphQL to fetch fields from a specific item in Sitecore. However, my query is fetching all standard fields along with the fields added in the template. I only want to retrieve the fields that are explicitly added to the template. Here's the query I'm using: query Get...

4
Q: Keeping an airship aloft using only propellers (and nuclear reactors)

NimRadAirships! Many people love them, many see them as a flying safety hazard, especially the hydrogen-filled kind. And recently, I've thought about the other alternative: Propeller-Airships! I'm currently in the process of writing a lil steampunk/ retro-sci-fi comic series, taking place around the ...

2
Q: Beam structures in nested triplets

StewartI'm trying to create a beat of nested tuplets to look like this: My attempt to reproduce that looks like this: \version "2.24.3" { r4 ...

3
Q: Two runners start on a track and run at different speeds. When will they next meet?

ronald christenkksonTwo runners start running laps at the same time, from the starting position. George runs a lap in $50$ seconds; Sue runs a lap in $30$ seconds. When will the runners next be side by side? George's speed: $\dfrac{1}{50}$ lap per second Sue's speed: $\dfrac{1}{30}$ lap per second We are looking for...

17:15
1
Q: Negation of "I think therefore I am"?

More AnonymousMy idea is to assign a truth value to this statement of Decartes. However, if I apply a negation I should get a false value to it's negation and equally non-trivial. So the negation could be: "I think therefore I am not" "I do not think therefore I am" "I do not think therefore I am not" However,...

1
Q: Is it true that there is no method of initiating a direct citizen referendum in the US, which a number of other countries have?

Julius HamiltonJust looking for confirmation that many countries have ways for citizens to vote directly on rulings on the federal level but that the US has absolutely no similar such construct.

1
Q: Finding the price of the last item

user89412I am trying to solve question number 3 from the Mensa IQ test in the July 1981 issue of Omni, but can't find a pattern within the prices and letters. Figure out the rule that is used to determine the prices below and find the price of the last item. Watch \$46 Bracelet \$4 Earrings \$10 Chain \...

17:37
8
Q: Teaching talks as part of the interview process for a faculty position?

SimdHow common is it, when applying for faculty positions, that the applicant is asked to give a talk as if they are teaching an undergraduate class? Does the likelihood of this being asked depend on how elite the academic institution is? What do they do in Ivy League/Oxbridge/elite European universi...

2
Q: Viewing a 3D object from inside

Peter KingI have a list of coordinates in 3D all of which lie on the surface of a unit sphere (for all intents and purpose these are just random points on the sphere). I want to view them as from the centre of the sphere and be able to rotate the view using the mouse. When I set ViewPoint to {0,0,0} (the c...

17:59
3
Q: Does Popper's falsifiability criterion hold any utility?

FirstAxiomI understand that Popper's falsifiability criterion is meant to demarcate science from pseudoscience. But, is that all one can expect from it? I mean I do not care about science, but the values it holds, like explanatory power and predictability, many of which can also provided by unfalsifiable s...

1
Q: How to calculate overnight implied volatility?

XeriumI am trying to workout how to calculate the implied volatility of the overnight movement from market close to open. That is, the volatility of the from the closing price $S_t$ to the opening price $S_{t+1}$. If we want an estimate of current volatility from close to close, we can use ATM options ...

3
Q: In the US, does the Social Security benefit calculator assumes you work until the retire age?

Stefanie GaussI was thinking that, from my ssa.gov webpage, it says if I retire at 62, my benefits will be about US$1800 each month, but if I retire at age 70, the benefits will be US$4000. (and will be adjusted to future inflated values). However, does that mean it assumes that I keep on working from age 62 t...

6
Q: Calculating Density Function and Conditional Expectation of Independent Exponential Random Variables

prob1 yumaI am currently studying probability and statistics and I came across a problem involving exponential random variables that I'm having trouble with. I have some understanding of exponential distributions and random variables, but this particular problem has left me stumped. Here's the problem: Let...

3
Q: Simplification of square roots as denominators with limits

LeonardoThis might be a basic question but it has been the major issue to solving problems I seem to have when it comes to calculus. Consider this limit $$\lim_{\alpha \to \infty}\left[\tanh \alpha\right]= \lim_{y\to \infty}\left[\frac{y}{\sqrt{1+y^2}}\right]=\lim_{y \to \infty}\left[\frac{y}{\sqrt{1+y^2...

18:45
5
Q: I cleaned the grease off an old floppy drive’s motor; do I need to lubricate it?

squelch41I have a Sony HD 3.5″ floppy drive. It isn't reading properly and IMD shows the rpm to be 150-200. I dismantled the drive and there was a sticky ‘goo’ on the bottom of the inner ring that sits inside the spindle assembly directly next to the direct drive magnets. I cleaned it off, I think quite ...

19:06
1
Q: Python: Delete vertices by coordinates

CorniviusI have a grid of objects like this: Each object is made of 2 separate meshes (red and blue). Is there a way to use python to delete only the red part and then move the blue part to the front? The red parts' vertices are all Y coordinate 7.5 or bellow so I was wondering if that could be used to s...

Law
Law
3
Q: Why are the Lion Air and Ethiopian Airlines crashes being litigated in the US?

User65535The current news is about the breach of Boeing's agreement with the US Justice Department which would otherwise grant them protection against criminal charges relating to the Lion Air and Ethiopian Airlines crashes. This prompted a question of why the US Justice Department involved in crashes tha...

RPG
RPG
6
Q: Can Nolzur's Marvelous Pigments be used with the Mage hand cantrip?

sigmudI am trying to figure out a way for a 1st level wizard to escape from a cage. This is the scenario: he is trapped without any equipment (just a simple robe, and no spell left, except his cantrips: Toll the Dead, Dancing Lights, Mage hand) into a cage with iron bars and an iron door closed with an...

19:28
1
Q: Will the journal contact my supervisor without me knowing?

super_nova_UtahI sent my supervisor a manuscript, he did not have time to read it, gave me no feedback, and told me to put his name in the acknowledgements. I worked all by myself and one month later, I sent the new version of the manuscript to a few professors and CCed my supervisor just for transparency. Afte...

1
Q: I need to create a batch class that summarizes all Opportunity Amounts for each Account;

Florin HreniucAn email should be sent to the primary contact of all Accounts, containing a table with the Closed Won/Open/Closed Lost summarized Opportunity Amounts, but no matter how much i try and change the code i still do not get the email. Can anyone tell me what's wrong with my code? These are my apex cl...

20:13
1
Q: Is there a limit of TCP sessions in state TIME_WAIT in Windows?

David TrevorI am using Powershell to pull data from Exchange via EWS API. Import-Module "C:\ews_api\Microsoft.Exchange.WebServices.dll" $ExchangeServer = 'EXCHANGE' $ExchangeService = New-Object Microsoft.Exchange.WebServices.Data.ExchangeService([Microsoft.Exchange.WebServices.Data.ExchangeVersion]::Exchang...

CS
CS
20:37
1
Q: Output of a stand-alone full wave rectifier is different from the one in the circuit in which it is implemented

rireI'm trying to simulate an evening lamp using a NE555 timer and a relay. To do so, I'm stepping down the 230V AC household voltage to 16V by an RC circuit as shown. Now, when I take a stand-alone circuit of the rectifier, I get this output. (Output voltage being nearly 170V) What maybe the reaso...

1
Q: Order of numerical solver when calculating difference between forwards and backwards solution

TorI'm working in applied oceanography, where people are sometimes interested in calculating ``backwards trajectories'' of things floating on the ocean, i.e., going backwards in time to figure out where something came from. In trying out some toy examples, I came across the following point, which I ...

2
Q: Renewing UK passport also holding an Irish passport

CaptainZepI am a British Citizen from birth but hold an Irish passport. My British passport has expired and I am trying to renew it. The passport office is asking that I send them my foreign passport. I don't remember informing them that I hold another passport. I have not had to do this before and don't r...

3
Q: two different orbit definition and their explanations

james_kevinI am chemistry master student and had to interact with abstract algebra somehow. I am trying to learn concept of orbit. When I look at the book, I saw two orbit definition in two distinct but somehow related sections. First definition: For $a, b ∈ A$, let $a ∼ b$ if and only if $b = σ ^n (a) $fo...

6
Q: Why do physicists use sigma while biologists use p values/posterior probabilities?

User65535I work in the analysis of biological data, and am familiar with the use of maths to determine a test statistic, and the comparison of this test statistic with a threshold to evaluate a hypothesis. Using frequentist frameworks with $p$ values and using Bayesian frameworks with posterior probabili...

TeX
TeX
20:58
1
Q: Print macro in \addplot node label

Laura RoichI use a foreach loop to plot multiple curves via the \addplot command. The values that are necessary to define the relevant curve in each iteration are defined through some macros with the command \def. Each curve is also associated to a node text label that is supposed to show the value of a giv...

1
Q: Was it only Satan who tormented Job in Job 1:16?

NatIn Job 1:12 God gives Satan permission to torment Job The LORD said to Satan, “Very well, then, everything he has is in your power, but on the man himself do not lay a finger.” Then Satan went out from the presence of the LORD. It’s in my understanding that only Satan will torment him. In Job 1:1...

21:19
2
Q: can every program still be written without recursion or cyclic calls?

gladesI'm wondering if it was theoretically possible for a compiler to determine maximum stack depth at compile time if a limitation was placed on the program. The limitation being that you can't use recursion or cyclic calls. With cyclic calls I don't mean loops but function calls (a -> b, b -> a). Th...

1
Q: How do I speedup this simulation program

Jonathan WickThis is a program to solve a differential equation numerically using Euler method. As of now, it is very slow, and I need to run 10000 Monte Carlo simulations. The differential equation is called stochastic Landau-Lifschitz-Gilbert equation with Spin Transfer Torque effect, basically a different...

2
Q: Waste Products from Hydrogen Fuel Cells

RonithI was recently reading this article by BMW, that said The exhaust air of a hydrogen car consists of pure water vapor. The fuel cell drive is therefore locally emission-free. This means it keeps the air in cities clean I wanted to know as to what extent is this statement true. Does this mean tha...

TeX
TeX
21:42
3
Q: Use l3seq sequence in command requiring \ExplSyntaxOff

Marek DědičI am working with a LaTeX3 template that stores a list of languages in a l3seq sequence g_languages_seq. I want to pass these to polyglossia, so in essence I want to do something like \setotherlanguages{\seq_use:Nn \g_languages_seq {,}} However, in some older versions of polyglossia that I need ...

2
Q: How much water should I add to coco peat to germinate seeds?

FluxI am trying to germinate some alfalfa (Medicago sativa) seeds in coco peat. I bought a bag of dried coco peat at a store. The coco peat consists of coconut husk pith and some coconut husk fibers. I recall some advice that germination media should be as moist as a "wrung out sponge". I am not sure...

22:04
2
Q: How should one decide the author order

wwwqaq111Some introduction: I am a PhD freshman studying electrical engineering. Currently, a group member (who I consider a friend, also a freshman) and I are collaborating on a paper in configurable hardware designs (namely using some parameters that automatically generate circuits). He provided the bas...

22:28
1
Q: Key generation from partially random data

swineoneSuppose an embedded system without a true random number generator peripheral, but nevertheless it is necessary to generate a secret key. Suppose also that this embedded system has an analog-to-digital converter connected to a signal with a low/moderate level of noise. Finally, suppose that it is ...

4
Q: Decode Caesar cipher based on a given text

None1I can't think of a better name. This is similar to this challenge, but a lot easier. Read three strings which contain only uppercase letters. The length of the first and second strings are the same. The second string and the third string are encrypted using Caesar cipher using the same key. The o...

22:52
2
Q: An algebraic group has how many representations?

Doug LiuLet $G$ be a connected, linear algebraic group over $\mathbb{C}$. Let $\rho:G\to \mathrm{GL}(V)$ be a rational representation. Does $\rho$ have at most countably many subrepresentations (up to isomorphism)? Cross-posted https://math.stackexchange.com/questions/4797754/subrepresentations-of-a-repr...

2
Q: Late 1990s to early 2000s movie that involved aliens and meat everywhere

luciferHere's what I can remember: there was meat everywhere tall octopus-like alien that "made" the meat (unsure) the tall alien detects with a lighthouse kind of eye smaller aliens that cant see or hear or have a general disability like that scene where guy and maybe young girl are in a basement and ...

4
Q: Is Discord really a pony?

Elements In SpaceThe character called Discord is an agent of chaos (spirit of disharmony) that appears as a major antagonist in several episodes of My Little Pony: Friendship is Magic. They look like a Frankenstein’s-monster hybrid of several other creatures, including elements of: deer, goat, lion, bird, lizard...

CS
CS
1
Q: What does back-back mean in the context of TVS diodes?

Luis J. MoraI am making the schematic of a 24 V power supply regulator using the LM74900-Q1 IC. When selecting the TVS diodes, I found the following design suggestion in the datasheet of another IC (LM74800-Q1) for 24 V battery systems: Single bi-directional TVS cannot be used for 24-V battery protection be...

23:13
1
Q: Use of the dative case after the preposition "от"

BrunoIn Братья Карамазовы by Dostoevsky I read: Это она от страху уверена, что выздоровеет. Why not "от страха" instead of "от страху"? I thought that "от" was followed by the genitive case and not the dative. When should we use the dative case after "от"?

2
Q: Problem of Affection in Kant's Thing in themselves as Causes, Neo Kantians and Post Kantians Responses

Parsa FakharWe all know "the problem of affection" raised by Schulze: "if causality is apriori structure of the mind and exist inside the mind, how can we claim thing-in-themselves cause phenomena when thing-in-themselves are outside the mind?" How did Neo Kantians and Post Kantians like Hermann Cohen and Er...

23:35
1
Q: When should I worry if a potential postdoc PI doesn't respond?

JoinI recently sent a cold email to a potential PI in the USA. He replied to me the same day showing interest and we set up a meeting, during the meeting he suggested we continue the selection process with a campus visit. I accepted, we exchanged a few emails, he confirmed the visit. But he agreed to...

23:59
4
Q: Is the conventionalism re: the terms "electron" and "positron" an article of evidence for the inversion account of negation?

Kristian BerryFrom the SEP article on negation: In Hintikka’s (1973) game-theoretical semantics, negation is modeled by a role-switch between two players in a semantic game (cf. the entry on logic and games). A geometrical intuition of negation as inversion can be found in a paper by Ramsey, who suggested tha...


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