Do native speakers not pronounce the final consonants in words? For example, the "d" in "bad" and "g" in "ing" in "interesting" or "speaking"? I am asking about BrE.

NROL-44 failed to be in space for yet one more night last night, this time because of an automated hotfire abort triggered when one of the outboard (iirc) engines on the Delta IV Heavy failed to ignite. Turns out this isn't uncommon for the Delta IV (much to my surprise). By what mechanism do RS-...

I'm rather new to vim. And I don't like much to install many packages. I use html, javascript and react.js, and i would like to create some simple way to type and then have the correct snippet on the file. It would be only 5 or 6 snippets, can you give me a hand on where to start learning this ar...

I would like to simulate a simple cellular automaton like this (rule 254), how do you do it from scratch in Mathematica without relying on the high-level function CellularAutomaton, which hides all the implementation details?

The reverse of a number is the number obtained by reading the initial number from right to left: for example, the reverse of 125 is 521. Two integers are said to be accomplices when these numbers are written with the same number of digits, each one is different from his reverse and from that of t...

I would like to change my zsh prompt color, if $PWD is currently on tmpfs mounted filesystem. Lets say for example, /dev/shm is a tmpfs filesystem. I can confirm that: $ grep /dev/shm /proc/mounts tmpfs /dev/shm tmpfs rw,nosuid,nodev,noexec,relatime,size=26307700k 0 0 so, when I am in /dev/shm,...

I just ran across an in­ter­est­ing ques­tion from a friend about the voic­ing of sibi­lants in English. She was ask­ing why English speak­ers pro­nounce the word mus­lim as muZlim (with a voiced sibi­lant) whereas those from the Mid­dle East pro­nounce the word with a true /s/ (un­voiced). As a ...

So, enamel has no nerves, so theoretically tooth should not feel when dentist bore into it. Yet still we use anesthetics... Maybe its dentin's fault? It apparently has some tubes filled with liquid and tooth's nerves can feel this liquid's movement. So, maybe, the closer dentist gets to dentin (e...

If I have file1.txt which contains the following: Line 1.1; Line 1.2; Line 1.3; and file2.txt with the following Line 2.1; Line 2.2; Line 2.3; I want to copy all the lines of file2.txt and paste it to file1.txt in a way that stays like this: Line 1.1;Line 2.1; Line 1.2;Line 2.2; Line 1.3;Line 2...

I've done a lot of test writing using Mocks, and so I've learned that it makes refactoring difficult due to implementation coupling inherent with Mocks. I've done a lot of reading on the topic tonight, but cannot see a way to unit test DI'd facade-type classes without using Mocks. I would like to...

At the end of the Battle of Scarif, the Death Star fires on the Scarif Citadel. To a normal fan, this is completely normal. But for a really avid fan, you would wonder how it is so accurate. For example, when the Death Star fires on Jedha City, it misses completely, by a few kilometers, but the i...

I have some terms contain ww=a+a^2+a^6+a^-4 where (a^2)^p_. -> -dx[p] Exp[-x[p]] x^2 but Mathematica only replace power 2 of a. how can I fix this problem 1/a^4 + a + a^6 - E^-x[1] x^2 dx[1]

I have to prove that following matrix is diagonalizable over $\mathbb R$. $$ \begin{bmatrix} 1 & 2 & -5 \\ 2 & 4 & -1 \\ -5 & -1 & 3 \\ \end{bmatrix} $$ I found characteristic equation for this matrix as $ x^3-8x^2-11x+81=0$ Now if I prove that this equation has distinct roots then it follows tha...

In Shifting the +- voltage signs in circuitikz answer, they used "/tikz/circuitikz/voltage/distance from node" to set the distance that the +/- signs are away from the component (or well, node), and when I use that exact code, it works as shown, but I can't figure out why my code it doesn't seem ...

I am stuck in a true/false question. It is In a finite commutative ring, every prime ideal is maximal. The answer says it's false. Well what I can say is (Supposing the answer is right) $(1)$ The ring can't be Integral domain since finite integral domain is a field. $(2)$ There can't be unity in ...

Picture this: an arrogant spell caster is tired of having his monologue interrupted by a mouthy, flippant PC. What spell does the spell caster use to mute the PC? Deafness (or Blindness/Deafness) won’t work; the PC won’t be able to hear the monologue. Silence won’t work; the spell caster won’t be...

I have a maze and I want to select all of the 'seamed edges'.Maybe there is an addon for this? Thanks in advance.

How would tautomerism take place in 3,5‐dimethyl‐4H‐pyrazole? I am aware of nitro–aci nitro and keto–enol, but I haven't seen such a compound before. I recognize that a hydrazone formation was done but nothing more. From what I was able to reason, an alkadiene is formed but that is unstable, so ...

I have graphed this function, and it seems to be a parabola like figure. However, I am not sure what I am supposed to do. Am i supposed to construct the function? Or am I missing the point here? A small hint to guide me in the right direction would be appreciated! :D

I have a pretty arcane problem, I know, but here we are: I reference and cite a project called Exodus – companies own spelling: εxodus, i.e.: ε [GREEK SMALL LETTER EPSILON (\varepsilon)] + "odus" % !TeX program = lualatex % !BIB TS-program = biber % !TeX encoding = UTF-8 % !TeX spellcheck = de...

On a Windows 2019 Server the drive D: is 100% full (500 Gb used): I'm trying to understand why the disk is full but I can't because both File Explorer and Total Commander reports no more than 33 Gb used: It's also strange that WinDirStat reports 100% (500 Gb) used in the start summary, but onl...

I have never found any tags or documentation regarding external magnetic field in VASP but in different well known published articles$^1$, the implementation of the external magnetic field by VASP has been discussed. Can anyone please explain how is it possible to simulate the external magnetic f...

Oh wise brains of the internet, I implore thee Magical Lineage states "Pick one spell when you choose this trait. When you apply metamagic feats to this spell that add at least 1 level to the spell, treat its actual level as 1 lower for determining the spell’s final adjusted level." If applying m...

I want a relay to turn on a 120V device when another 120V device is turned on. Unfortunately most relays I've encountered are 12 or 24 volt DC. I could simply slap a power brick in there and get the job done, but is there such a thing as a relay that does this without fiddling around with conver...

So, my D&D group is in a major fight, and the artificer cast Immovable Object on the coat of an enemy. What we ruled was that it held him immobile and his clothes (not himself) couldn’t move. I was curious what actually happens in this case, according to RAW. I have a couple of RAW questions. Wo...

Over a decade ago, my partner and I moved to New York City (Brooklyn). We were somewhat surprised to find a certain feature of our apartment building; where it abuts the adjacent apartment building, there is a small open space, a few feet wide. This space is fully enclosed by the buildings and ca...

Roosevelt and Churchill used an extremely sophisticated telephone encryption system to communicate during WWII. In fact, they did not use it all the time because it apparently changed the voices a lot. I just wonder: At the time, teletypes with automatic encryption existed. They were much easier ...

I recently came across the term "triangle given in species" in Hatton's Projective Geometry. Searching in archive.org turned up other examples (such as this) of 19th century texts, and it is also used in Euclid. But I don't see it defined anywhere. By context, I think it refers to similar tria...

I am curious about the NP-completeness (or if not, an efficient algorithm) for the following generalization of the subset sum problem: In subset sum, we are given a number $t$ and a collection $S$ of integers with $|S|=n$, and ask if we can use a subset $S'\subseteq S$ to sum up to $t$. We can ge...

I want to include a description column for each variable but I got this error Here my code : \documentclass[a4paper, 12pt]{article} \usepackage[margin=2cm]{geometry} \usepackage{booktabs} \usepackage{natbib} \usepackage{eucal} \usepackage{lmodern} \usepackage[showframe]{geometry} ...

In this question a mother has applied for a UK visa for her 12-year-old son. The visa was refused under Section V 3.6, deception. Normally, a subsequent application will almost certainly be refused under Section V 3.7, and the applicant will be banned for ten years. If she applies again who will ...

Inspiration for this puzzle Here is a picture of my actual computer keyboard. I posted it here originally. https://lifehacks.stackexchange.com/questions/23760/i-like-my-computer-keyboard-but-the-letters-have-nearly-worn-off As you would expect, letters are worn pretty much according to the use I...

Is Axler's Linear algebra done right insufficient for an introduction of the subject? I have recognized the similar question, but I have a somewhat different situation. My familiarity with linear algebra is pretty much limited to basic matrix computation . I am currently in Multivariate Calculus...

What is this wire for? The picture shows a wire connected to the grounding screw and back to the outlet. Is this commonly done to get a connection to the metal box? My outlet tester shows this outlet as wired correctly and grounded. This is in the kitchen and I would like to swap the pictured ou...

Many people in the world like playing games. Also, maybe we can design special interesting games for some open problems in mathematics (or physics). In quantum mechanics, there are some games (for example, Quantum Moves; which it is about quantum control and hybrid intelligence About the Game) th...

Would you be able to, as Servant of the Scale dies, pass on x amount of counters to Fertilid and then activate his ability multiple times before Fertilid is then killed by the board wipe, or would they both die at the same time?

I would like to define a keyboard shortcut in my .emacs file so that the Break (a.k.a. Pause) key does a C-x C-s C-x C-c. As a warmup, I thought I would try something simpler, so as a test I did this, which seemed almost identical to examples I found by googling: (global-set-key [C-r] 'next-line)...

Assume there is an astronaut with a very long rope trailing behind him. As he approaches a very large black hole he can look back and see the rope behind him trailing off into the distance. What would he see after he crosses the event horizon and looks back along the rope while a portion of the r...

When watching the Numberphile video about Highly Composite Number, I spotted something that aroused some of my doubts. One of properties suggested by Ramanujan was that the highly composite number's powers of prime factors are in order of decreasing order, with the highest prime factor almost alw...

I was finishing up Chapter 10 of Spivak's Calculus when I stumbled upon the following remark which I have trouble wrapping my head around. The paragraph in question went something like this: lt is often tempting, and seems more elegant, to write some of the theorems in this chapter as equations a...

I have a background of 20+ years professional coding, but my heart is really in teaching. About three years ago, I started tutoring ages grade 6 through adult in coding topics. introduction to coding in Python or Java AP CS A help for independent students, long-term projects like an role-playing...

On a regular basis, when we daven a Musaf Shemoneh Esrei, we read pesukim from Parshat Pinchas, related to event of the day. For example, if it is Shabbat, we read in the Musaf Amidah the pesukim from Bamidbar 28:9-10 related to the additional sacrifices of Shabbat. If it is Shabbat and Rosh Cho...

I am building a kayak hoisting system for my garage, and was originally going to use a standard two-rope system to keep the kayak level when hoisting, but I came across this single rope schematic, and was curious if it would actually lift the kayak level or not. My spidey sense says "no", but wan...

This challenge is from a game, Keep Talking And Nobody Explodes. It's hard to say how this mechanism works. The engineering is pretty impressive, but there must have been an easier way to manage nine wires. — from the manual Input Exactly 9 "wires", each which is labeled 'A', 'B', or 'C', and is ...

This book was about this huge guy, who because of a disease was huge. He was going to die from this disease, but he was put to sleep and woke up in a VR MMO, and he is helped by his aunt. He then joins a group, and they level together. They then go on a quest that leads to the guy getting sacrifi...

My prefix is case closed. My suffix has only one. My infix is not closed. My whole is no one.

can anyone send me a link tutorial about arduino oop, I want to learn arduino, I am just a beginner.

And if so, are there any interesting implications? According to the storyline, Galileo launched modern science by declaring the necessity of rendering physical events countable. What is countable must be "defined" or literally translated into finite units. Newton's great leap followed this maxim,...

Lets assume the setting is multiple civilizations all around the universe, each owning at least one of a planet, a huge mother space ship or a space fleet. If for some reason there would be a conflict between two factions, how much sense would classical firearms, as we know them, in gravity-free ...

Let's say I'm writing a class that tracks a single stock ticker. In this simplified example, the StockTracker class holds a string that tells me the trend direction and a variable window that holds x amount of historical prices. Now I want to expose this class so whenever a new stock price comes ...

I found an old Macintosh SE/30 in the basement and fired it up recently, only to find that there's some kind of problem with the built-in CRT. I don't really know how to describe it, though. Can anyone identify the glitch shown in this image? Without knowing what it's called, it's hard to google ...

Can preference be convex when utility is not a concave function (e.g. $U=x_1^2 + x_2^2$)?

I am new to Mathematica and still struggling to learn basic things. In this spirit, I am trying to compute the following expression: $$C_n = \left[ \frac{\partial^n W(J)}{\partial J^n}\right]_{J=0},$$ where $W(J) = \ln Z(J) = \ln \left[\sum_{n=0}^{\infty}\frac{1}{n!} J^n G_n\right]$, and $G_n$s a...

I am trying to evaluate an ADC that can be used to digitize a simple analog signal of upto 1MHz frequency. This ADC datasheet mentioned it has 8-input channels that are simultaneously sampled. What does it mean by simultaneously sampled? Can I use all 8-channels to sample 1 input signal that can ...

Over the last 2 months, many of the top performing employees have left my current company. They each had different "official" reasons for leaving, but the timing of it is pretty obvious (it happened right around when the company put a temporary paycut in place due to covid-19). At this point, pay...

Lets say you had a really big space ship that uses the ramjet method to collect hydrogen. It can only generate gravity in a ring spinning around the collection cone. This means there's nothing in the center of the ship. My question is how do you get out of the ring into the other areas? Would it ...

I recently found a contradiction between the life expectancies of a Hobbit. A Hobbit comes of age at around 33 years old. Comparing that with a human, we come of age at around 18. Sidetracking a little, the WHO states that the average human life expectancy is about 77.5 years, which I will round ...

In the opening bars of the last movement of Tchaikovsky's 6th, the strings have some four-part writing with a melody "F# E D C# B C#." However, the score reveals that the first and second violins are actually crossing voices at every note change, so that they alternate playing each note of the me...

I am working with the Weibull model with this pdf: The standard pdf that the some R functions perform is : I am required to find the median, which in the standard parameterisation is $\lambda (\ln2)^{\frac{1}{k}}$. I have worked out the median of my given pdf to be $\lambda^{-\alpha}(\ln 2)^{\f...

Based on my understanding from google and other posts, like this What is cross-validation for? and What is cross-validation? . I understand that (k- fold) cross validation means spliting the data into ($k-1$) training and 1 testing set. In other words, it is used for finding the model accuracy. S...

This is what I'm doing: \documentclass{article} \usepackage{calc} \newcommand{\foo}{0} \setlength{\foo}{2in + 3in} \usepackage[paperwidth=\foo,paperheight=\foo]{geometry} \begin{document} Hello, world! \end{document} I'm getting: ! LaTeX Error: Missing \begin{document}. What's wrong?

This is from the book "tonal harmony", the 14th chord is vii half diminished 7; consisting of the notes D# F# A C#, with A in the bass, therefore it is vii half diminished 4 3, second inversion, which makes sense to me but the 16th chord is what's confusing me, it has notes F# A D#, without a C...

I want to write an optimization problem wherein I want the "number" to be something like "PP". The code below achieves this in the align environment. \begin{aligned} & \underset{x}{\text{minimize}} & & f_0(x) \label{Eq:PP} \tag{PP} \\ & \text{subject to} & & f_i(x) \leq b_i, \; i = 1, \ldots, m. ...

This is what I'm doing: \documentclass{article} \usepackage{calc} \newlength{\foo} \newcommand{\zzz}{5} \setlength{\foo}{\zzz * 2in} \usepackage[paperwidth=\foo,paperheight=\foo]{geometry} \begin{document} \end{document} I'm getting: ! Illegal unit of measure (pt inserted). <to be read again> ...

Let $F:[a,b) \to [0,\infty)$ be a $C^1$ function, and let $\hat F$ be the (lower) convex envelope of $F$, i.e. $$ \hat F(x) = \sup \{ h(x) \mid \text{$h$ is convex on $[a, b)$}\,,\, h \le F \} \, . $$ Let $c \in (a,b)$. Do there exist $x,y \in [a,b)$ and $\lambda \in [0,1]$ such that $c = \lamb...

There is a widespread belief that policing in the USA suffers from systemic racism. Let us suppose that Joe Biden gets elected President and decides that this is a priority. Let us also suppose that he can get legislation passed to support his policies. However, policing in the USA is mostly a lo...

I have a hybrid vehicle that uses a "type 2" charging cable, but the cable is too short. It plugs in to a regular 13Amp UK socket in my garage. The problem is that, in addition to the usual 3 twin and earth cores, the cable also has 2 smaller cores which I believe are used for some charger contro...

I would like to plot many elevation profiles with labels on specific waypoints (Points of Interest). In the end it should look like this: Or like here: https://www.birdandhike.com/Hike/Mt_Char/Sawmill_Big/maps-sb/Sawmill_Big_Prof.htm The DEM and the Tracks (gpx and other formats) are already the...

If this happens in the course of preparing a volumetric solution, what should be done?

It just occurred to me that I spend a large amount of time when typing TeX documents copying and pasting expressions from previous lines of working out. If I make a mistake in that expression, I then have to go down through all the following lines and update it. Is there a way to assign a math ex...

When we're tired due to long-hour-work, we often move our palm over our face from top to down, we may squeeze our noses as well on the way doing that. And, if we're very tired we can do it hard or else we do it gently. Is it natural to say "I stroke my face whenever I am tired"? stroke: to move...

How to use random ip address in Curl request,I'm using this code in Curl But return my local ip from http://ifconfig.me printf "%d.%d.%d.%d\n" "$((RANDOM % 256))" "$((RANDOM % 256))" "$((RANDOM % 256))" "$((RANDOM % 256))" in Curl curl --header 'X-Forwarded-For: printf "%d.%d.%d.%d\n" "$((RANDO...

The first declension, with the -a ending, is usually feminine. Why are so many men's names (cognomina), however, in the first declension -- Seneca, Cinna, Aggrippa, Sulla, and more? This is far out of proportion to the handful of masculine improper nouns in the first declension, like agricola, po...

In my copy of the Siddur HaGr”a there is an introduction to the prayers of Rosh Hashonoh. It is quite clear there that we mention neither our sins nor our needs. Therefore our Rabbis forbade us to mention any type of sin in order that a person should not request forgiveness for his soul because...

I was reading the datasheet of ADS1115. It has an input capacitor stage which it continuously charges and discharges to measure the voltage between AINp and AINn. It is written in the datasheet that the capacitor used in the input stage are small and to external circuitry, the average loading ...

I've developed superhuman abilities, specifically, I am able to "copy" and permanently keep "skills" and technical knowledge from other people. For example, if I spend time near a politician I might absorb oratory and public speaking skills or if I spend time absorbing skills from a scuba diver, ...

Vehicle: 2004 isuzu crosswind 2.5 liter 4JA1 engine When I check my transmission fluid level while engine is not running it sits perfectly on the 'C' level. But when I check it while the engine is running and I run the transmission through all its gears it doesn't even reach the dipstick. Is this...

I want to create an animation like this one: https://www.youtube.com/watch?v=rvzZmNW2_70 After googling I have found just below informations about this issue: https://twitter.com/bencbartlett/status/1278424544848621578 https://twitter.com/InertialObservr/status/1175188246734573568 I am not sure a...

This is probably an episode from an American anthology show but I can't track it down. The wife's husband is killed (I think it's in a car crash) but is replaced by a doppelganger in the hospital. She knows it's not really him but nobody believes her. She has a young son. That's all I can remember.

Let $R$ be a unital ring with cyclic additve group $(R, +,0)$. Is it the case that $1$ generates the additive group $(R,+,0)$? Thoughts: Maybe classifying the unital rings with cyclic subgroups is possible.

I know that things like x = x++ + ++x invokes undefined behavior because a variable is modified multiple times within the same sequence point. That's thoroughly explained in this post Why are these constructs using pre and post-increment undefined behavior? But consider a thing like printf("foo")...

I am playing a Rogue with The Revived archetype from Unearthed Arcana (UA). One of the 3rd-level features in this archetype is that you get Bolts from the Grave, which procs immediately after using Cunning Action. Bolts from the Grave 3rd-level Revived feature You have learned to unleash bolts o...

I just started taking classes on circuit analysis. have a question regarding this Thevenin circuit. My end goal is to find the maximum power that can be obtained at A and B. I managed to find the potential difference across A and B, to be 10V, and current I, to be 2A, in the circuit using Kirchh...

Recently I've been reading the Spivak's calculus textbook and got quite stuck on proving that if a function $$f:\mathbb{R}\to\mathbb{R}$$ has only removable discontinuities then $$g(x)=\lim_{y\to x} f(y)$$ is continuous. I've tried using the $\varepsilon$-$\delta$ definition and the triangle ineq...

A box has 10 balls, 6 of which are black and 4 are white. Three balls are removed randomly from the box. Determine the probability that all first 3 balls are black, knowing that at least one of them is black. Attempt: So we need to calculate $P($obtain $3$ black balls$|$ at least $1$ is black$)...

In the movie "The Lord of the Rings: The Two Towers", Elrond speaks to his daughter: "If Aragorn survives this war, you will still be parted. If Sauron is defeated and Aragorn made king and all that you hope for comes true, you will still have to taste the bitterness of mortality. Whether by the...

My brand new computer cost me a job. The device crashed, not just once, but twice during a job interview over Skype. I took it back to the origin of purchase where it was diagnosed as a having software issues, it was subsequently wiped and the operating system was reinstalled fresh. The laptop wa...

This plane ground speed looks like slower than man walk, maybe 10km/h!? It can not be possible that an airflow of 10km/h around wings keep plane in the air. What is the key for such a slow flight? a) head wind b) blast from propeller make additional lift at wings or c) maybe propeller upward thru...

The problem statement is: Two girls have picked 10 Roses 🌹 , 15 Sunflowers 🌻 and 14 Daffodils 🌼 . Find the number of ways they can divide the flowers between themselves. My approach: Let there is a single stick that divide the flowers. Total number of objects including the stick is 40, among w...

Twelve distinguishable objects are to be put in ten distinguishable boxes so that no box is empty and no box contains three objects. What is the probability of this? My reasoning is as follows- The only case possible that respects the constraints is one in which some two boxes contain two objects...

My prefix is in affirmation My suffix in its full form is filled with folklore My infix was discovered My circumfix keeps you up to date My transfix might be bought when you're out with friends My whole is far below the surface As seemingly standard in these riddles, we'll not take a strict li...

Answers to question PDP-10 effective address calculation explain how PDP-10 effective address calculation works, including potentially infinite indirections. However the answers don't address how this feature would be typically used, and to what extremes. Was it common to use more than, say, two ...

The following plot is a simplification of a problem I am working on: Plot[1/(10^-x + 1), {x, -10, 10}] Although the y-axis has the correct scale, I also need to transform the values on the x-axis by 1/(10^-x + 1) (in my simple example, the end result should be a 45-degree line). How is that done?

I was studying identical particles in Quantum Mechanics, when I came across the notion of the 'exchange operator' acting on a two-particle wavefunction, $\psi_(x_1, x_2)$, in one dimension: $$ P_{12}\,\psi(x_1, x_2) = \psi(x_2, x_1)$$ The way I understand, all that $P_{12}$ does is switch the pos...

The Gemara Arakhin 9b discusses certain rules of the calendar. Specifically, it mentions that Rosh Hashana will always be on the same day of the week as the day of the Omer (the 2nd day of Pesach), or the day later. Rashi there comments that with today's fixed calendar, this is no longer in flux;...

I recently switched to Ubuntu from Windows10. In the windows command prompt, you could scroll past the end of the line and make the last line appear in the top of the screen. I think it's really helpful in keeping concentration at the work you're currently doing as you don't have to see (and thus...

I'm new to LibreOffice Calc and can't find a setting to change number format with Decimal and Thousands Separators. It's easy to do this in Microsoft Excel as there is a dedicated button to change it. Please let me know how to do this in LibreOffice Calc. Input: 1234 Desired Output 1: 1,234 Desir...

Is there a more elegant way of processing input coming from either the command line arguments or STDIN if no files were given on the command line? I'm currently doing it like this: sub MAIN(*@opt-files, Bool :$debug, ... other named options ...) { # note that parentheses are mandatory here fo...

[Title "Alexey Grigorievich Kopnin - mate in two - 1948"] [FEN "nR1rB3/2PPPN2/bbk1N3/1p2p3/1p2P1nq/1K1Pp3/7B/8 w - - 0 1"] (source) In this problem, it’s white to move and mate in two. What is the solution? In the link (source) there is also a solution but it is in Russian notation and I do not ...

I have done over 5000 puzzles on chesstempo but still can't sense any tactics.So for the past few days I've been making a mental note each time a signal appears(loose pieces,exposed king,potenital for double attack ,etc) and try to think a way to exploit it but to my surprise can't find any.What ...

Given the recent civil unrest in the United States, where after three months of rioting, antifa and right-wing militia groups have begun shooting each other on the streets with a total of three dead, I started wondering about what the definition of a civil war was. The Wikipedia page on civil war...

The people who repaired my wife’s car’s windshield didn’t do a good job, and the little plastic enclosure surrounding the mirror (containing a light and a sunglasses holder) has fallen off. I tried some superglue and it fell off again within a week, presumably because it gets so hot and humid in ...

It is my understanding that the these: \begin{equation} min_{x}f(x)+\lambda\vert\vert x\vert\vert _{L_{1}} \end{equation} \begin{equation} min_{x}f(x) \text{,}\hspace{5pt}\vert\vert x\vert\vert _{L_{1}}\leq M \end{equation} problem formulations are both modifications of \begin{equation} min_{x}f(...

I use fancy TikZ shadows in my document, it works fine. However, if I process the document with ghostscript (or its ps2pdf frontend), the shadows get broken. The processing is aimed to reduce the size of the document because of many images, I recon it is an unrelated issue. Here are the details. ...

If we lit a single fire that was fueled by a substance that burns at 500°F, then around that fire we lit directly against it another fire surrounding the original one. This second fire's fuel also burns at 500°F. Would the original fire increase in temperature? If yes, is there any topic related ...

In his 1969 paper "On projective modules of finite rank", Wolmer Vasconcelos writes Let $M$ be a projective $R$-module... The trace of $M$ is defined to be the image of the map $M \otimes_R \operatorname{Hom}_R(M, R) \to R$, $m \otimes f \to f(m)$; it is denoted by $\tau_R(M)$. If $M \oplus N = ...

Even when the two dementors are still a good distance a way from him, Dudley quickly becomes a sobbing wreck in the first chapter of Order of the Phoenix. Why is this? As I recall from Prisoner of Azkaban, this is not a normal reaction to dementors. For example, when there was a single dementor o...

Many places in Europe are notorious for not being open on Sundays. This is especially true in Switzerland. Today, August 30th 2020, for some odd reason, some stores are open. Coop: Migros The only explanations, given here, are: ouverture dimanche and Ouverture exceptionnelle Which equat...

I have a ContourPlot where every contour should be displayed with a different color ContourPlot[ -((2500*Sqrt[13]*(x - 10000)*x^2*y)/(15625*x^4 - 13*(x - 10000)^2*y^2)), {x, 35, 100}, {y, 1.4, 5.6}, PlotLegends -> Automatic, Contours -> 20, ColorFunction -> "DarkRainbow" ] but I get this o...

I've looked it up and know that "that's that" has several meanings in different contexts. such as "a piece of cake" or "it's done(reach a conclusion)". I can't decide which meaning it is in this context, I think both are OK. //Transcript: We decided the fairest way to settle this argument(wheth...

I am currently working on a small project, where I have to reduce the voltage from 3 LiIon batteries that are chained together in series to ~3.3V in order to power a microcontroller. At first I was using the MP1584 chip, however a few days before I wanted to order the finished PCB the product was...

My teacher posed this question and it got me thinking; The electric flux through the curved surface area of a hemisphere of radius R when it is placed in a uniform electric field is? Before this, I was taught the definition of flux as the number of field lines passing perpendicularly through an...

Let $A$ be the matrix $$ A= \begin{pmatrix} 2 & -1 & -1\\ 0 & -2 & -1 \\ 0 & 3 & 2 \\ \end{pmatrix} $$ I am trying to find $A^{-1}$ as a relation of $I_{3}, A$ and $A^{2}$ and also to prove that $A^{2006}-2A^{2005}=A^{2}-2A$. For the first one I noticed that $$A^{n}= \begin{pmatrix} 2^{n} & -(2...

Job 22:3a What pleasure would it give the Almighty if you were righteous? What is the answer to this question from Job, now that we know both the old and the new testaments?