I'm an Indian citizen currently in the US. I want to know what the procedure of applying for a Singapore visa is. I do not have any contact in Singapore. If you could let me know what the process is, that would be great.

In the Introduction to Weibel's homological algebra book, he states that homological algebra gives nonconstructive results. He doesn't elaborate on this further, so I wanted to know where exactly the obstruction to being constructible is. For a concrete example, is Riemann-Roch 'constructible'? M...

I think these cuttings are at least two months old. It's a random bush or perhaps tree that had very nice white flowers. Tomorrow I'll try to go looking to see if I can find the "donor" and identify it. They seem to be hanging on, but not growing new leaves. Finally, these little white structures...

I'm trying to write a story about a middle school boy, but I struggle with finding the right format and ending. I think I want it to tell the story in the form of a diary, but it's not ending up how I would like it. It looks wonky and whenever I begin to write I cannot come up with ideas. There a...

Inside of this hole there used to be a cylindrical stopper or drift that was used to set the lever pull distance. It dropped out of this on a ride at some point and I can't find it. Since I don't know the name I can't search if the component is available anywhere.

Hello transiesta users. I am trying to calculate the I-V curves of 2D blue phosphorene(electrodes are made of the same material the semiconductor 2D blue phosphorene ) by using transiesta code. First I was facing the problem of convergence by increasing the bias more than 0V,to fix this problem I...

Also asked on math.SE. Let $(Z,d)$ be a metric space, and for $p\geq 1$, consider a metric space $(W_p,d_{W_p})$ defined by The Wasserstein Space $\begin{align}W_p = \{\mu|\mu\textrm{ is a Borel probability measure on Z such that} \int_{Z}d(z_0,z)^p\mu(dz)<\infty \textrm{ for some }z_0 \} \end{al...

Heart's Blood rote reads as such. An initiate of Prime can easily sense the flow of Quintessence through his own body — his life energy. This energy flows from the Tellurian, through the Life Pattern and back out to rejoin the cosmos. Each point corresponds to a health level, the last three on b...

Trying to generate a number using MAX_SAFE_INTEGER I noticed something strange, I'm sure it has to do with the way numbers are stored in javascript, but I don't understand what exactly it is. Math.floor(Math.random() * Number.MAX_SAFE_INTEGER) // Always returns an odd number Math.floor(Math.rando...

Finest level log of a heap size limit exception log contains HEAP_ALLOCATE lines. Aggregating HEAP_ALLOCATE Byte values yields 2371721 bytes (2.37 MB). Right after that, the log is showing a FATAL_ERROR, stating the heap is 6385056 bytes (6.38 MB). What is the relationship between HEAP_ALLOCATE l...

Recently in the local news, I watched the body camera footage of the Monroe County NY District Attorney getting a traffic ticket. During the video she exclaims to go ahead and write the ticket because she is the one that prosecutes it (I presumed she was implying she would make it go away). Can ...

This was a question that was asked in one of my exam, in which we had to confirm if the given order was correct or incorrect. They key says the given order is correct and the professor at my high school explained saying that along with the -M of C=S bond, due to the d-orbital resonance at 2 posi...

I need to reproduce this figure exactly but I don't have the same result. \documentclass{article} \usepackage{tikz} \begin{document} \begin{center} \definecolor{qqwuqq}{rgb}{0,0.39215686274509803,0} \definecolor{uuuuuu}{rgb}{0.26666666666666666,0.26666666666666666,0.2666666...

I was using a Husqvarna 440 chainsaw and ran into some trouble. I managed to get it stuck in a log. Once I got it out I had to adjust the chain tension, but then everything was OK again. A few minutes later, the chain derailed on me. I was able to put it back on but it kept sticking. I wasn'...

I am learning chord notation and I noticed that the Wikipedia page does not mention any specific notation for a chord where the root is omitted. Omitting the root note seems to be quite commonplace, and the result sounds different than if the root note were to be included, so I assume that there ...

Okay so I got an emergency message from a nearby settlement and sent all my range combat colonists there in a hurry, without considering the consequences - namely than none of the remaining colonists can hunt. So while all my hunters are out fighting fleshbeasts in some nearby village, those rema...

This question includes the quote: A C42 doesn't weigh much, so to pull the 5+ G required to exceed the design specifications of it's wing spar and fixings would require extreme speeds. I'm not an aircraft design expert, but it seems to me that the weight of a plane doesn't affect its ability to...

It seems like NASA wants to put someone on Mars by 2030, 61 years after we first landed on the moon. This date doesn't seem too far off. However, will it take another 60 years or more to reach the next planet in the solar system? When will we land on Venus? How about Neptune? Have any rough dates...

I've set up a third-party web application on our IIS server, utilizing Windows authentication. To manage access, I created an AD group for external contractors and included them. These contractors should only log in to the web app, without access to network computers. To enforce this, I configured "

When a molecule of a dielectric material is placed in an electric field, the molecule acquires an electric dipole moment. Why?

Stumbled onto the following observation. Defining a Sierpinski matrix recursively import numpy as np def sierpinski(n): """ Generate a Sierpinski triangle matrix""" size = 2**n + 1 triangle = np.zeros((size, size), dtype=int) def fill_triangle(x, y, side_length): if side_...

I have a gateway laptop model P5SW0 which I got in none working condition. Taking measurement, some capacitor was identified to be shorted. Upon removal of the capacitor the short disappear, and further measurements revealed a chip (PU6) with a hole in it. It appears to be a DC-DC converter, as t...

I have a spreadsheet that I want to pull data from another spreadsheet. This is my formula: =query(importrange("https://docs.google.com/spreadsheets/d/14lj6yPp8h9U1JAEA4dz-uROaQgZxy60NjXniHOFUeAU/edit#gid=0", "TRANSACTIONS!B6:P9999"), "select Col2, Col3, Col13, Col14, Col15, Col16 where Col16='EV...

There is a population that is equally likely to grow by $10\%$ or decrease by $10\%$ every day. What can we say about it in a year's time: will it be bigger, smaller, or the same as it was in the beginning? And in one year and one day? Let the population size initially be equal to $x$. Then after...

I am trying to imitate this style of graphic (see attached photo). It's not made on an isometric grid. I think it was made using the envelope tool? But I can't quite figure it out. Thank you!

I know you shouldn't past-date something (e.g. date for yesterday), but what are the consequences/risks of writing a future date on a document? In my specific instance, I'm getting a bridge loan out of state. The documents are being sent to me to sign and then returned to the bank. This is all ha...

While creating a bash script, I found that this code ls puts all files on one line: pi@raspberrypi:~/ptlrestinterface$ ls update.sh web.config MyApp.runtimeconfig.json still ls | head -n1 still prints only the first file: pi@raspberrypi:~/ptlrestinterface$ ls | head -n1 update.sh I would...

We are given an array $a$ of $n$ integers, such that the difference between each element $a[i]$ and the adjacent elements $a[i-1]$ and $a[i+1]$ is at most $1$. Define a root of $a$ as an index $k$ in $1,\ldots,n$ such that $a[k]=0$. If $a[1]<0$ and $a[n]>0$, then $a$ has at least one root. Moreov...

If HST has been reduced to 2 fully functioning gyros, I read that they plan to turn off one gyro and run in single-gyro mode to save the second functioning gyro. The Compton Gamma Ray Observatory had three gyros and NASA decided to de-orbit the satellite when one gyro failed. Why did NASA not fol...

I'm working on a fantasy world in which orcs are more obviously similar to swine and I want them to have hands which look like they could have evolved from pig's feet. My "concept design" is symmetrical and has two thumbs and two fingers, all wider than that of humans and in roughly similar locat...

This official Church of Jesus Christ of Latter-day Saints source asserts: As the Bible was compiled, organized, translated, and transcribed, many errors entered the text. The existence of such errors becomes apparent when one considers the numerous and often conflicting translations of the Bible...

When I was learning to fly (on PA38s) I was taught to check the Direction Indicator against the magnetic compass every 15 minutes or so, because the DI can drift. I may not have done it that frequently after I got my license, but I still figured it's a good idea. Do crew of airliners and other co...

This is not a technical question, it is rather a question about the implicit notation used in MATLAB and multiple digital signal processing books to refer to sampling frequency/sampling rate. Why is sampling frequency/rate typically abbreviated Fs and not Sf in English? Is it because of a particu...

It was a movie, I believe was on Netflix, and I only remember certain parts. There was a couple, and the girlfriend's friend and the couple drove to this hotel. They ended up getting locked in the hotel. I don't know if it was spirits locking them in, but anyway the food started going bad and the...

Due to the type of models I'm running, I need to expand my rasters beyond their original extent. For example, my raster has ext(original_raster) SpatExtent : -2700100, 2750900, -2500900, 3342100 (xmin, xmax, ymin, ymax) and I want to expand it to +500 cells on each side extend_cells <- 500 exten...

Hebrews 13:2 seems to indicate that some people are angels, and that we live among them unaware. Does this passage reinforce the position that true born-again believers, the chosen of God, are angels pending their true form, as Romans 8:19 and Mark 12:25 also seem to indicate? Hebrews 13:2 ESV tr...

Is there a class of solvable groups $G$ having a derived length $O(\log\lvert G\rvert)$? See Wikipedia for the definition of Big-Oh ($O$) and the definition of derived series of a group. Any help would be appreciated. Thank you in advance!

Is the following true? If yes, is there a simple way to show it? Let $F:U \to \mathbb{R}^m$ be continuous, where $U$ is an open subset of $\mathbb{R}^n$. If $m<n$, then there exists a fiber containing a non-trivial arc, i.e. there exist a non-constant continuous $\gamma:[0,1] \to U$ and $p \in \m...

You can use maximum likelihood estimation to estimate the regression parameters for a random variable with Poisson or Binomial distributions, but I haven't heard of a chi-squared regression or a Gamma function distribution. What makes the Poisson and Binomial special enough to have their own regr...

Has the z~1100 redshift of CMB been actually measured by comparing the fingerprint (absorption spectra) of the CMB with the theoretical radiation pattern of a 2.725K black body, or calculated by simply dividing the theoretical recombination temperature (3,000K) by 2.725K?

All physical or scientific explanations require language in relation to third person properties. Consciousness is a first person property. All we can ever do is get closer and closer to mapping physical correlates with consciousness. We can at best, seemingly, (which would of course still be amaz...

In a scene in Basic Instinct, where Nick Curran has nodded off on his sofa and is awoken when someone calls to tell him a detective he has locked horns with has been killed, there is what looks like a horror film playing on the television in front of him- does anyone recognize it? I realize Basic...

I am bringing in the washing when suddenly it starts to rain. I have to do it really fast or else the washing is going to get wet. If I translate from Vietnamese to English, it would be "I have to race with time". Is it idiomatic to say "I have to race with time" to mean I have to do a thing very...

Context I'll be passing an interview coding test in java soon. I am experienced with other programming languages but am very unfamiliar with Java. I am looking for critiques of the coding style much more than of the algorithm or the performance, but I am unfamiliar with the java library so any po...

I'm looking to retire after 55+. Due to job changes through the years, I've rolled over previous 401K's to a traditional IRA. I want to avoid early withdrawal penalties and take advantage of the "Rule of 55". Can I reverse rollover the traditional IRA back to my current 401k prior to retiremen...

I'd be pleased to find out about more sentences with this property. Here's a sentence I found which I have an inkling might be an example of such a sentence: "I will give you all A's" Is the teacher/professor speaking to one student or multiple students?

I use this code in LaTeX to make a table: \begin{center} \begin{longtable}{|c|p{0.08\linewidth}|p{0.08\linewidth}|} \hline \multirow{3}{*}{Text O} & \multicolumn{2}{c|}{\multirow{2}{*}{Text S}}\\ &&\\ \cline{2-3} &P&P\\ \hline 1&2&3\\ \hline 4&5&6\\ \hline \end{lo...

I am asking this question as someone who has read many short stories and novels, so in theory, I should know the difference between the two. However, I have found it difficult to write short stories/novellas differently than novels. In short stories, I can't figure out how to make the pacing quic...

My question is a dual to This one. In a pair of nested multicols environments, I want the inner one to have separation rules, i.e. the "checks" in the following mwe: \documentclass{article} \usepackage{multicol} \begin{document} \begin{multicols}{2} Test Test Test Test Test Test Test Test Tes...

One of the most widely cited reasons for the '70s stagflation was expansionary monetary policy employed by the central bank. Below is M1 during this time period (source), and it does not look like there was an unusual growth at the time. How was it possible for inflation to be so high when the m...

To help focus answers: The following is specific to “Energy” and “Power” as used for signal processing, not physical units of energy and power (then to ask can units of “Watts” and “Joules” be used, and if not- what then are the units that could be used that would make more sense). Further, this ...

There are historical references to a device called an "undulator" used for CW reception circa before and during WWII. What is an Undulator (as used for CW recording)? How did they work (electronic or mechanical)? Why were undulators used for recording instead of audio tape recorders? What speed...

Inspired by the following Reddit post. My parents gave each of my brothers $50,000 when they graduated from university as a downpayment on their home. When I graduated they did not do the same for me. I asked about it and they said my husband should provide. I wasn't married. I still lived at ho...

I want to show that $$\lim_{n\to \infty} (2\pi)^{-d}n^{d/2}d^{-2n}\int_{[-\pi, \pi]^d} (\cos(x_1)+\cdots +\cos(x_d))^{2n} dx_1\cdots dx_d =2(d/4\pi)^{d/2}$$ holds. How do I prove this? It seems that the central limit theorem can be used for this problem, but I don't know how to apply it. Or is th...

Took a screenshot from a podcast where there was a wall of F1 Grand Prix tracks behind the host. I was able to identify all tracks except this one inside the red box I've highlighted. I assume that is yet another Track used in F1 because the others around it are. It could also be from a differen...

I've completed my PhD, gone into industry, and now considering returning to academia. I loved doing the research, all stages of the process, from the exploration of ideas to drafting papers - I actually enjoyed writing my PhD thesis, unlike almost every other student I ever met. However, I think ...

Underwater volcanic activity, although less impressive than its land counterparts, can still trigger interesting phenomena on the surface, like (temporary) islands poping out of nowhere, ocean bedrock rising or collapsing affecting depth, columns of steam and ash blocking line of sight etc. In th...

Why we say 'ça me fait chier' and not 'ça me fais chier' is it because the subject is il ?

This question has been on my mind for quite a while. The fact that ダンボール (corrugated cardboard) is written in katakana infers that it's a 外来語. However, it can also be written as 段ボール, and I have no idea what 段 in this context even means. Can someone enlighten me as to the etymology of that word?

I understand that df -a includes "pseudo, duplicate, and inaccessible file systems". This results in quite a few mounts being hidden such as: udev 8055632 0 8055632 0% /dev devpts 0 0 0 - /dev/pts ... which don't appear unless I pass th...

The infrared lights, the material clumps that radiate and the whole view resembling a celestial firework or giant eye

Suppose I have operator $U_f$ that maps state $|x\rangle|y\rangle|0\rangle$ to another state $|x\rangle|y\rangle|f(x, y)\rangle$. The function $f$ has its internal state, that changes on each invocation, but is somewhat "hidden" from an entity that provides $|x\rangle|y\rangle$ and receives $|x\r...

I am studying mixture models and I would like your help with this question: Consider the distribution $\Gamma$ and assume it is a finite mixture distribution, i.e., $\Gamma=\sum_{k=1}^K \Gamma_k \lambda_k$ with each $\lambda_k\geq 0$. Can you an intuition on why we cannot infer the number of mi...

I have a very large file which I want to sort alphabetically. It is a tab separated file, but I really need to be sure that the file is sorted starting by the first character in the line regardless it is space or anything else. Example of the input file: 2090802 V19 I must be the third in the gro...

I want to jack up my car so I can work under it. Sadly, the only non-inclined surface I have available is covered in grass paving blocks similar to this: I have a pneumatic jack that I would use to lift the car up on one side, then I'd put these jack stands under it to secure it better: But I'm...

If a parabola is of the form $\frac{(42x-15x^2)}{8}$, what would be the maximum area of a rectangle that can be fitted inside it if the bottom (width) of the rectangle is aligned on the X axis i.e the y isn't less than zero? I tried to use 2nd derivatives to get a maxmimum width value but I keep ...

Is there any way to get a tour of the White House (other than the POTUS inviting you), if your embassy does not organize any tours into the White House? Indian Embassy does not organize White House tours. I have heard you can accompany a US citizen if they are going, is that true ?

I have 5,000 zloty in cash. Can we convert it to Malaysian ringgit at any bank? I have asked the money exchanger, they don't buy and sell zloty. Thank you.

A multi-acceptance deterministic finite state automaton is a tuple $(Q,\Sigma,\delta,q_0,T,f)$ where $Q$, $\Sigma$, $\delta: Q \times \Sigma \to Q$, and $q_0 \in Q$ are defined in the standard way of DFAs; $T$ is a finite set of labels; $f: Q \to 2^L$ is a function that associates a set of label...

The quiver editor shows me this But when I copy, paste and compile in a blank overleaf project, I get this This is the code I'm using \documentclass{article} \usepackage[spanish]{babel} \usepackage{tikz} \usetikzlibrary{arrows} \usepackage{tikz-cd} \usetikzlibrary{babel} \usepackage{quiver} ...

The letter a is usually double-storey in Roman and single-storey in italics (and in math code), but I hope to have both $a$ and a italicized double-storey version in math code. I don't think there are built-in options for double-storey a in math code, so I'm asking if there's a way to force text...

Very distant inspiration from what a family member asked me some years ago on epiphany, this might be a classical logic exercise, but due to the flavor it's quite hard to find the same problem under a different formulation, let alone confirm an original. Additional note: This is a fairly easy on...

I have a setup like such in the provided schematic. The idea is that I do have a -2.5 to 2.5V signal which I'd like to convert to a signal between 0 and 5V. How should I connect my opamp? Should the negative supply rail be connected to at least -2.5 (-5 in my schematic) or could it be from 0? Wou...

I'm currently trying my best to set up a user manual for a system. It's working fine, except I'm continuously running into the same issue when trying to set up tables. I'd like to generate a table with three columns, the first of which naming a function, the second one describing it and the last ...

So the company (Lets say A) where I was about to join, had some issues with my notice period of the current employer. So the company was ready to give me a fake work experience letter that I worked for them for the time I had been with my current employer. I however was quite reluctant and said m...

This question is about Scott F. Aikin's 2017 paper "Modest (but not Self-Effacing) Transcendental Arguments". The full paper is accessible here with a free account, and some ideas regarding that approach can also be found here. The central move is to show that "Transcendental Pessimism" (= we hav...

My desktop index.html cannot be validated by Google Search Console. The error is " page with redirection ". I made a redirection for mobile users on the m. version of my website. Google is crawling my website with Google Bot for smartphone and then can't reach the desktop version of the index pag...

I am new in GIS. I created the below PostGIS code but pgAdmin is giving below error. QGIS is also not showing any geometry when fetching this table in QGIS. Can I get some real time 3D geometries or 3D shapefiles? CREATE TABLE buildings ( id SERIAL PRIMARY KEY, name VARCHAR(100), geom GEOMETRY(Ge...

My student wrote down this answer in an exam. Participating audience members in the music-making process can enhance the level of engagement and enjoyment for everyone involved. The original sentence is Audience members participating in the music-making process can enhance the level of engagem...

I have a Regtest environment with some Lightning nodes. I need to make the fees go up a lot to do some tests on how the Lightning nodes behave with high fees. What would be the most efficient/simple method to increase the fees? I was thinking of simply installing an ordinals wallet and generate t...

I am having a party with 20 guests and I want to find the probability to share my birthday with exactly one of the guests (depending on the result, I may buy a second birthday cake, just in case!!). I know how to calculate the probability for at least one of the guests: The probability for everyo...

Imagine an RCT with a time-to-event outcome which is analyzed using a Cox regression. There are four assessments (T1=before randomization, T2=3 weeks, T3=6 weeks, T4=12 weeks). Under the censoring at random assumption, correct inferences are made regarding early uninformative drop-outs (e.g., dro...

Trask's Historical Linguistics (3rd Edition) makes an off-hand comment that "the Greek word syllabus has a Greek plural syllabontes". As we know syllabus is actually a spurious word, arising from a misprint of the accusative plural of σιττύβα sittúba in a 1470s edition of Cicero's “Ad Atticum” IV...

I am writing a program to display the behavior or certain seeds when you apply the Collatz conjecture algorithm to them. I would like to know what I should change and also if there is a way to see which seed produced a certain plot. I am also having some problems with the color. import matplotlib...

In Google Sheets I have a list of orders recorded by order date, item, and price. There is one order per row, but the same items are ordered on different dates and the prices vary between orders. I'm trying to return the most recent order price for a lookup item restricted to only orders made on ...

A short bike stem is common, and desirable, on MTBs (increased maneuverability) and a long bike stem is common on road bikes (lower body position), but is an ultra-short bike stem downright dangerous on a road bike? If not downright unsafe, is it safe with a small group riding in single file, but...

I am given a single qubit gate $\in$ {I,X,Y,Z}. I can prepare any state, send it, and measure the result - but once. Is there a strategy to identify the gate?

Which was the first liquid non hypergolic engine to be reignited in space? ( space = above 100km )

What's the easiest way to kill and clear grass and dandelion, plus a few other weeds, that have crept under trees and bushes, from my lawn? Photo attached, and given back troubles I'm trying to make this as lightweight a job as possible...

Frequently my son's teacher will show him fun little math "tricks." I usually take this as a moment to show him what's really underlying the trick (e.g., why two consecutive squares will differ by a predictable odd number). However, the most recent one is eluding me. Consider the square array $...

I hope this isn't a silly question, but I was wondering how acceptable it'd be to copy and paste a certain structure and some particular sentences in letters of recommendation. Of course, I'm not thinking of copying and pasting anything very specific about the candidate, but there are certain tra...

I'm travelling with SJ to and from Oslo, and on SJ's own website the information about arrival times is only written as specified in the schedule for stops in Norway. When travelling with the EuroNight service to Denmark and Germany I was able to see this information through Banedanmark and Deuts...

I've received an invitation from an editor of a journal to review an article. After a brief reading, I've determined that the article's scope is beyond my area of expertise, leading me to decline the invitation. In the invitation letter, the editor kindly asked for alternative reviewer suggestion...

Debates on free will often raise the question of evidence: who will have the best evidence? However, before discussing evidence, I would like to know who bears this responsibility in philosophical and scientific discussions. Should it be borne by proponents asserting the existence of free will or...

I am designing 10 hour weekly summer math learning opportunities for students taking algebra next school year. I would like to know from algebra teachers what skills they wish their students had mastered prior to taking algebra.

In chapter LXII of Don Quijote by Cervantes, ("Which deals with the adventure of the enchanted head, together with other trivial matters which cannot be left untold"), the Don and Sancho are invited by their host to see a magical talking head made of bronze, which, their host claimed, would truth...

With modern technology would it be possible to build an HG Wells style Martian tripod? It should approximate to one of the HG Wells war of the worlds style tripods at roughly 30m high and have a “heat ray” that consists of some form of flame thrower with a 100m range. It needs to be capable of mo...

I am having difficulty understanding how QGIS calculates the difference between two dates with the "AGE" function and would like to see how it is coded. If this is possible, how do I find the source?

I have been trying to build my workspace after making a new package, however when I do catkin build only 15 out of 50 packages are build, most of them are abandoned and a few fail. I think it has something to with dependencies but I can I track that. Is there an easy solution to this?

I want to centered drawn inner vertical line in tabular. Example code: \documentclass{article} \usepackage{multirow} \begin{document} \begin{tabular}{|c|c|c|} \hline \multirow{2}{*}{R} & \multicolumn{2}{c|}{No. Jobs Completed/Submitted} \\ \cline{2-3} & C1 & C2 ...

In my community it's somewhat common for families kashrut observance to be "dairy out", where (as I understand it) they'll eat vegan/vegetarian/dairy food at restaurants without rabbinic supervision. Is there a halachic basis for this practice?

If a rib symbolizes a woman, and a woman can also be a city, wouldn't it stand to reason that the three ribs symbolize 3 cities? Looking to Rev 17:18 "And the woman which thou sawest is that great city, which reigneth over the kings of the earth." There's a clear connection between the beasts of ...

In a story I'm writing at one point a kid's sitting on the docks and feeding the Seals sushi, and I'm wandering if that's actually possible, and what kinds of sushi they can actually eat or if it would make them sick.

Currently I launch my UDP BitTorrent tracker using the command ./target/release/aquatic_udp -c "aquatic-udp-config.toml" the app shuts down when I close the console. What is the preferred way of keeping the script running persistently in the background? ChatGPT recommends either nohup ./target/r...

I'm running an Ubuntu 20.04.6 LTS server. The server hosts some Virtualbox virtual machines that I backup with a bash script on a daily basis. That works quite fine. The bash script also sends some emails when the backup worked, or I get an error message by email if it fails. Recently I started t...

In the not too distant future Earth will enter its golden age of industrialization and construction. Pulling raw materials from other planets (not from Earth), humans begin building mega structures around the planet. Huge rings, tethered space stations, multiple moons... But scientists and activi...

Could someone help me understand this circuit? Like what is the purpose of the logic inverter, is it for switching direction automatically? And if so, how is it working? For example on the TX1 line - it goes into IC7A as HIGH, comes out LOW to IC7E where is goes out HIGH again - same on the RX1 l...

I want to loop over all files in directory on macOS and perform some operations on each file, and do this based on their size, going from big to small. To create a list I can loop over I do this: files=$(find "$directory" -type f \( -name "*.opus" \) -exec du -h {} + 2>/dev/null | sort -rh) but ...

I have a function q, and the exact value of the integral of q from 0 to 2m is nint, where m=1.98355. I do Simpson's rule using the simpRule function, right now its only doing it 30 times i.e. for 1 to 30 strips. I want to see how fast it converges by performing the Simpson's rule, until the resul...

Taking responsibility is distinguished from being morally responsible in that, if one takes responsibility for a particular outcome it does not follow that one is morally responsible for that outcome. One can take responsibility for many things, from the mundane to the vitally important. For exa...

I fell into a known bug (gnome-shell failure https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/2055012) during the upgrade from Ubuntu 22.04 to 24.04. I had to go to recovery mode to manually handle the error. I could make it and now I have Ubuntu 24.04. But the kernel seems to remai...

I'm interested in the homology of infinite groups and especially in low-dimension integral homology. If $G$ is a locally finite group of finite exponent, one has that also $H_*(G;\mathbb{Z})$ has finite exponent. This follows from the fact that the integral homology of a finte group is bounded by...

We were gifted this plant a couple of years ago and I finally got around to re-potting it, however since doing so it's not looked particularly happy... Plant ID apps tell me it's some type of Dracaena but all the photos I found online have different size or colour leaves. Any suggestions would be...

I have a script, let's call it on-event.sh, that's going to be run at specific times, such as when a particular application launches or quits. The script itself will run as the current user (not root) since I'll be using BetterTouchTool to execute it. However, on-event.sh needs to somehow trigger...

At Playing Cards (Unicode block) I found The Chrome Browser says this should be the font TwemojiMozilla.ttf. This font, I can find in my TeXLive under c:/texlive/2022/texmf-dist/fonts/truetype/public/twemoji-colr/ The font can also be found on CTAN: https://ctan.org/texarchive/fonts/twemoji...

Is there a basis such that if we measure the bell state $\dfrac{|00\rangle+|11\rangle}{\sqrt2}$ the results might not be correlated at all (or at least not maximally)? For example $\dfrac{|00\rangle+|11\rangle}{\sqrt2}$ = $\dfrac{|++\rangle+|--\rangle}{\sqrt2}$ = $\dfrac{|LL\rangle-|RR\rangle}{\s...

Is there some general way of expressing the fact that the operation of taking an average is sensitive not only to the set of numbers on which it is operating but also the number of instances of those numbers? That is, for the 2-set example, (ma+nb)/(m+n) is not necessarily equal to (a+b)/2. 2....