I'm trying to come up with the label of an isolated location on a floating island where wizards go to practice magic in peace. I've already come up with the name, Skytower, but Skytower what? Is there a word for "sanctum" or "monastery" or "temple" but in an arcane/magical sense instead of a reli...

Where does "The future is already here, it's just not very evenly distributed" come from? It has been attributed to Gibson, usually supposedly in The Economist of Dec 4th, 2003, which I'm not sure even exists (since their site mentions an edition of Dec 6th but none for Dec 4th). However, a versi...

I'd often like to quickly take some data, and apply it to a template in bash. e.g. imagine doing the following $ seq 1 2 | eztemplate 'this is a {1} test' this is a 1 test this is a 2 test $ eztemplate 'this is a {1} test' hi 'there now' this is a hi test this is a there now test ...

This is somewhat difficult to explain, but I have been trying to fill in the gap between these two faces with a rectangular shape... As you can see here, this is the screenshot of what I am trying to fill in: I'm essentially wanting it to be connected and then delete the edges in between so it f...

I don't have an iPhone, but I want to use Apple airtags to track my bicycle, and other high value goods. Can I get all the airtag tracking capability from an iMac desktop?

I have been hunting for an answer to this for a long time, and although I've seen proposed solutions, none of them works. I can see all packages ready for update with this command: apt list --upgradable Some of them are held back due to phased updates. I want to know which ones will be upgraded,...

In 1984, newspeak is used to control thought, and to make certain ideas impossible to express, or even to think. I'm imagining a future totalitarian state which develops custom languages which it forces segments of the population to learn from birth (say raised in creches), and exclusively. These...

I need to install an AC unit in my 36 x 36-inch single hung window, but it was installed to open horizontally instead of vertically. Are windows like this made to be installed in a single position, or can they be rotated? I wanted to check with the experts prior to ripping it out.

I was reviewing rational inequalities, and noticed that the solution (identifying the domain of the inequality) was obtained just through critical points and a number line. Is there a way to get the domain using just reciprocals? Example: $$ \frac{x + 5}{x-4} \le 0 $$ I can see the crit points ar...

Let CNC denote the statement that for any countable descending chain of non-empty sets: $$A_0 \supseteq A_1 \supseteq A_2 \supseteq [...]$$ There is a choice function $f$ so that for all $n$, $f(A_n) \in A_n$. This seems to be an interesting choice principle, because it is equivalent to the seque...

For example: when referring to the Great Depression, which of these would be more correct? That 10 years is known as the Great Depression. Those 10 years are known as the Great Depression.

I'm part of a lab that has a shared scientific computing enviornment. My system administrator just told everyone in the lab that one of the nodes I am using is about to crash because /tmp is full. I have been trying to understand how I am using /tmp and am confused. I noticed that running lsof +D...

Suppose a US hobby artist consistently has more expenses than income, so the activity does not qualify as a business. But suppose the hobby has income from selling paintings. How should the artist report this activity to the IRS, and can the hobby income be offset by the hobby expenses? Assume ho...

I need to execute CREATE MATERIALIZED VIEW ... WITH DATA from a function/procedure but I'm getting ERROR: CREATE MATERIALIZED VIEW ... WITH DATA cannot be executed from a function. There is any workaround for this apart from making a function return the creation query text and copy paste it to e...

Write a program or function that takes in a string and outputs a count of each letter in the string, case-insensitive. Input: A string consisting of printable ASCII characters (code points 32-126). Output: A list of pairs, where each pair consists of a letter and its count in the string. The list...

Numbers 23:19 God is not man, that he should lie, or a son of man, that he should change his mind.... Is this merely repetition saying "God ain't a human being" twice in a row for emphasis, or is there more nuance?

I want to remake the \begin{align} environment \end{align} with some stylization and I have no idea how I can do this. Well, to be precise, I want two specific things to happen in this environment: I want each line break to add a vertical line where the command breaks, i.e.: When it is an ope...

I've seen lots of questions here about various spikes/overshoots/transients when using MOSFETs but when I try to apply the solutions to my circuit I can't seem to apply them in a way that makes much impact. I am trying to learn more about MOSFETs by creating a small RGB Hub. The Hub will ideally ...

We call the natural number $n$ a partition number $\iff$ $$\exists d | n: \gcd(d,\frac{n}{d})=1 \text{ and } \Omega(d) = \Omega(\frac{n}{d})$$, where $\Omega$ counts the prime divisors with multiplicities. Then we have: $n= p_1^{a_1} \cdots p_r^{a_r}$ is a partition number $\iff S = (a_1,\cdots,...

Context: MC is facing against 3 monsters/ demons at night, and he's about to lose the battle. But then a girl rush in , killed 2 demons with her spear and saved MC. He's very surprised ad don't know what to say. Hope someone can explain to me the meaning + grammar of this sentence : 「ぁんだよ、手応えねぇなぁ...

During my performance reviews at the 3 companies I have worked for during my 15+ year career in Information Security, I have seen a consistent and concerning disconnect between the annual goals/OKRs I set and the work that demands my time every week/month. This consistently results in me not full...

I'm sorry if this kind of question isn't allowed, but I'm starting to learn Fourier series and I'm still not entirely sure what's going on... in this specific case, I'm trying to find the Continuous Time FS representation of this signal: From what I gather, the period of this signal is $T=6$, an...

I know the proof of the "Doubling the cube problem". What is used there is the fact that if a number $a$ is constructible then $[\mathbb{Q}(a):\mathbb{Q}]$ is a power of $2$. I found in a German textbook the remark that the inversion is not correct: If $[\mathbb{Q}(a):\mathbb{Q}]$ is a power of $...

Here is my code: Plot[{(81*Sqrt[3])/(4 \[Pi]) (r + r^2)^2/(1 + r + r^2)^4, 27/8 (r + r^2)/(1 + r + r^2)^(5/2), 1/(1 + r)^2}, {r, 0, 6}, PlotStyle -> {{Blue, Thickness[0.005]}, {Red, Thickness[0.005]}, {Gray, Dashing[{0.02, 0.015}], Thickness[0.005]}}, PlotLegends -> Placed[Lin...

I'd have a single page web application that uses both query terms to control content shown to users as well as target-style hash fragments, which prevents encoding the query terms in the hash. An example link: https://example.com/page?foo=1&bar=2&baz=3#target My understanding is that for every c...

When zinc is added to sulfuric acid, it undergoes a chemical reaction that generates hydrogen gas and zinc sulfate. Can this reaction be reversed by applying pressure to the zinc sulfate converting it back into zinc and sulfuric acid? While the usual reaction is $$\ce{Zn + H_2SO_4 \rightarrow \ ...

Apparently, Lunar regolith will melt if you expose it to moderate power microwave energy. Based on the accepted answer to the referenced question, it has to do with the presence of iron in the regolith. Since iron is known to be a major part of the Martian regolith, do we expect that Martian soil...

This seems impossibly ridiculous. How do they define, specifically, what it means to be dressed in drag? Let's say we're clear on whether someone is male or not, now what does it mean, specifically, what female clothing is? frilly? there are men's "blouses" that are frilly. unbifricated bottom g...

Let's consider the operator $A:(C[0,1],\lVert \cdot \rVert_1) \longrightarrow (C[0,1],\lVert \cdot \rVert_1)$ defined by $$ Ax(t)=\int_{0}^{t}{tse^sx(s)ds} $$ I want to compute $\lVert A \rVert_1$. First of all, $A$ is indeed a bounded operator: $$ \lVert Ax \rVert_1= \int_{0}^{1}{|Ax(t)|dt} \l...

I am currently learning more about lock free programming and wondered how I could implement mutual exclusion using std::atomics. I implemented the following code to realize a pipe class for passing values between threads. pipe_t uses the exclusive_executor_t to provide mutual exclusion for its c...

This is a music video, recorded around 1982/1983, from Kodiak Bachine, considered to be the first Brazilian synthpop musician. At 5:39 you can see what looks like an arcade game: and at 5:50 another racing game where I can make out a Taito logo - Google reverse image search says it's Pole Positi...

Forgive me for my ignorance if I am mistaken. I remember that Mister Mxyzptlk was a Fifth-Dimensional Imp and his weakness was if he said his name backwards he would return to the Fifth Dimension. But it is shown, I believe, that he gets to choose which weakness he has. Mxy chose his weakness bec...

Red herrings appear to violate Chekhov's Gun, but I've been told that not all red herring are the same and it seems that some red herrings are ok if they serve some sort of purpose. So my question is how do you ensure that a red herring doesn't violate Chekhov's gun? Can you give me a list of cri...

They can be added as an input to a transaction, but what is the benefit of that? Isn't it the same as adding any random data to the transaction and pay the fee? You must know the key(s) to sign, and that may be useful to someone in some way, but how that justifies the chainstate bloat? Are there ...

^ denote the beginning of the line ,$ denote the end of the line. Suppose that there is a line in my vim: this is a test line test line. I want to remove all the characters from the 20 th character in the current line (line number is 1) till the end of line. 1s/20th,$// How to express the 20th ...

$$ Let \space b \in \mathbb{R}^4, \space A\in M_{4\times4} (\mathbb{R}). $$ $$ Suppose \space \begin{bmatrix} 0 \\ 1 \\ 1 \\ 1\end{bmatrix}, \begin{bmatrix} 1 \\ 0 \\ 1 \\ 1\end{bmatrix}\begin{bmatrix} 1 \\ 1 \\ 0 \\ 1\end{bmatrix}\begin{bmatrix} 1 \\ 1 \\ 1 \\ 0\end{bmatrix}\begin{bmatr...

The new Nature Astronomy paper The impact of satellite trails on Hubble Space Telescope observations (Kruk et al. 2023) describes an AI-based object classification method used to find satellite trails in Hubble Space Telescope images. Hubble images with satellite trails are now in the popular new...

I have a dog, and it costs $200 a month to sustain it, in terms of dog food and other miscellany. He's 2.5 years old, a very good boy and I value him as a great companion. Recently my friend mentioned a program to help the homeless in my town. Winter is approaching (I'm in the Southern hemisphere...

My understanding is that the main obsracle to seeing habitable planets is glare. Right now, the best solutions are coronagraphs and proposed starshade satellites which blocks the star. But is this the only way? We know that the glare is axisymmetric. So we can measure the intensity along a ring c...

: Uncaught PDOException: SQLSTATE[42S02]: Base table or view not found: 1146 Table 'database_name.users' doesn't exist in C:\xampp\htdocs\training\DB\loginn.php:19 Stack trace: #0 C:\xampp\htdocs\training\DB\loginn.php(19): PDOStatement->execute() #1 {main} thrown

A majority of academics (from assistant-full professors) at The Faculty of Computer Science in my university are working as adjuncts. Why do they stay as adjuncts and not move around too in the EU or other developed countries to find a permanent position? I saw many small universities across the ...

I recently stumbled upon this paper here and here on the "deep ai" website that claims "BQP is not in NP." I thought that this result would be huge (as a corollary would be that $BQP \neq P$), so I find it strange that I haven't heard about the proof before. Is this paper legit?

Let $ABC$ an isosceles acute triangle and $D$ be the middle of the base $AB$. Let's consider $E \in AB$ and $O$, the circumcenter of the triangle $ACE$. Prove that the perpendicular in $D$ on $OD$, the perpendicular from $E$ to $BC$, and the parallel through $B$ at $AC$ are concurrent. I tried to...

Here is the question I am trying to solve: Let $X$ be a based space, and let $PX = \{ \beta: I \to X | \beta(0) = *\}.$ Show that $p_1: PX \to X$ by $p_1(\beta) = \beta(1)$ is a based fibration. I am confused about what should be the exact homotopy that I should write, here is my trial: We have t...

Long story short, the frame of my current bike got busted and it is essentially a write-off now. As I'm shopping for a new bike, the Surly Straggler came to mind again. Here are the specs for the Surly Straggler: https://surlybikes.com/bikes/straggler Relevant stats for the frameset can be found ...

If you sell an ETF before a year, intraday or in a swing trade, then is the fee prorated or is that just the flat rate you pay when you sell, when you buy or does the broker pay it at some point in time? Is the fee a percentage of the initial amount of capital traded plus gains or losses?

I'm trying to digitalize a score with LilyPond. I'm struggling with repetitions and acciaccaturas. I've simplified what I'm trying to achieve In this code \version "2.24.1" upper = \relative g'' { \time 3/4 r2 c,4 \repeat volta 2 { \acciaccatura e8 f2. } } lower = \relative f { \cle...

How can I check before my flight that the cloud separation requirements in VFR flight rules are met? As it is known, in order to fly VFR, the rules of 1000 feet vertical and 1500 meters horizontal cloud separation must be met. Although I can learn the visibility from the METAR weather report or o...

Please flag or comment if this type of request is not allowed — from searching on this SE community it seems like these types of questions are fairly common. I've tried some of the links in accepted and upvoted answers on related questions, but it turns out that figuring out radicals from seal sc...

Imagine a six-sided dice, D6, the right size to exactly occupy a square on a chessboard. The dice can move to any adjacent square, but does so by rolling rather than sliding, so the topmost side of the dice will show a different value. Now suppose the chessboard is infinite in every direction: no...

What are the key differences between Magento 2 Community Edition and Magento 2 Enterprise Edition, and which one is the best fit for your business needs?

Example 1 A: Yesterday, I went to Bob and Mary's wedding. Did you get invited? B: Really? I was completely clueless about that. Before the wedding, I was at home playing games. Example 2 A: The guy tripped over a branch and broke his leg. Have you heard of it? B: Yes. After the incident, I...

I'm considering to use UA78M33CKVURG3 in my design, so as with any linear regulator I have to make sure it will be able to handle the current draw in the worst case scenario. To calculate what the temperature increase I'm using this article as a guide, which requires the Case Thermal Resistance v...

Minister for Foreign Affairs Penny Wong has urged the UK to confront its colonial past. Speaking at King’s College’s Centre for Grand Strategy, Senator Wong highlighted the UK’s role in the Indo-Pacific region both now and in its history. She described her own family’s history and its relations...

This question is a continuation of my previous series of questions about basis functions. I would like to find the minimum energy of Coulomb potential motion using matrix method. $H=-\frac{1}{2}\Delta-\frac{1}{r}$ I have chosen Slater Type Orbitals as a basis functions $R(r)=Nr^{n-1}e^{-r}$ ,$ \q...

After reading the answers to this question, I noticed something odd: Ukraine appears to have abstained in the recent vote over China's policy towards the Uyghurs. However, given the context of the Ukraine war, Ukraine's continued existence as a state is entirely dependent on Western largesse keep...

As I understand, Roman numerals are used for oxidation states, whereas Arabic numerals are used for the charge of full ions, with some ambiguity allowed when a metal centre is all but ionised, such as in hexaaqua compounds. But I have never seen a Roman numeral with a negative sign in front of it...

Consider a 2-coloring of the edges of a complete graph $K_{n}$. Assume it doesn't exhibit a monochromatic subgraph of $m$ vertices thus demonstrating that the Ramsey number $R(m,m)$ is greater than $n$. In the case that $R(m,m)$ is in fact $n+1$ (call such a colouring a "maximal" Ramsey graph) ca...

I have to proof $\lim_{x\to 5}\frac{4x-9}{3x-16}=-11$. I have hard time to evaluate $\frac{1}{|3x-16|}$. So I start that let $|x-5|<𝛅$. I need to show that $|\frac{4x-9}{3x-16}-(-11)|<ε$. $|\frac{4x-9}{3x-16}-(-11)|$ = $|\frac{37x-185}{3x-16}|$ = $\frac{5|x-5|}{|3x-16|}$ < $ε$. I choose $𝛅:=1$,...

Hatcher's construction of a CW complex is as follows (see page $5$ of Hatcher's Algebraic Topology): (1) Start with a discrete set $X^0$ , whose points are regarded as $0$ cells. (2) Inductively, form the $n$ skeleton $X^n$ from $X^{n−1}$ by attaching $n$ cells $e_{\alpha}^n$ via maps $\phi_{\alp...

In "Hero builders guidebook" a recurring theme is that all monasteries are in human lands only, with the book not even mentioning the idea of other races founding them. This makes it unlikely for any other race to become a monk. Where does this idea come from? Does it have roots in deeper D&D/Fan...

I have a folder with scans of a book numbered 001.jpg through 092.jpg The scans have two pages of the book scanned together. What I want is split these by two from the middle vertically and regenerate filenames starting from 001.jpg to 184.jpg. So 001.jpg originally will be split as 001.jpg and 0...

Lagrangian density for Klein-Gordon field is: $$\mathcal{L} = \frac{1}{2} \partial_\mu \phi \partial^\mu \phi - \frac{1}{2} m^2 \phi^2$$ Then, does there exist a square root of Euler-Lagrange equations $\partial_{\mu}\frac{\partial \mathcal{L}}{\partial(\partial_\mu \phi)}-\frac{\partial \mathcal...

What does the name “obarray” stand for? Obarray seems to be a property unique to Elisp that is not found in other Lisp-like languages. So its name probably came up with by the early Emacs developers; where did it come from?

Because Arcane Art is a spell with multiple utilities for the Bard, if 1-6 risks them forgetting it, it feels quite a brutal outcome compared to a wizard suffering a similar consequence. As a result I've been tempted to offer them the outcome of forgetting how to manipulate the spell for the spec...

It seems that expression for fraction differs when the number of terms in the numerator is more than 2. {a, a + b, a + b + c, a + b + c + d, a + b + c + d + e}/2 {a/2, (a + b)/2, 1/2 (a + b + c), 1/2 (a + b + c + d), 1/2 (a + b + c + d + e)} Much better to see it as a screenshot : I want to ...

Our teacher explained to us that this set up allows us to produce the effect of a low pass filter: I have indeed found useful formulas to achieve this. The problem however is that when I simulate this block on LTspice for a sinusoidal signal having a certain offset. The output voltage is not ce...

I am trying to install Emacs vterm. Following its documentation, I added this to my init.el: (use-package vterm :ensure t) I have made sure that the dependencies are installed in my system (Ubuntu 22.04, Emacs 28). The install went well. However, it required a confirmation in the status line...

What is the relationship between transaction data and transaction id (which is used at mempool to generate Merkle root)? Note : when we query the getblock with verbosity 2, we get raw block in json format. at the transactions part, each transaction have 3 suspicious part : txid (transaction id) ...

I am working through Rudin's proof of the Riesz Representation Theorem in his Real and Complex Analysis texbook. The statement of the theorem is as follows: I am stuck on Step X. The proof of Step X is given by Rudin as: My Question is about the sets $E_i$. Specifically, I don't understand R...

"The commonality and difference among these concepts is/are still unclear. So our paper sheds light on it/them." ‘Is’ or ‘are’ for two uncountable nouns/subjects According to the above thread, what matters is whether "commonality and difference" is regarded as a compound noun. But I am not sure a...

A set $X$ is infinite if and only if it is equivalent to one of its proper subsets. That is, if there is a proper subset $Y\subset X$ and a bijection $f:X\rightarrow Y$. But what if we require $f$ to preserve additional structures on $X$? Let us call a set $X$ "superinfinite" if it is equivalent ...

I have: (tabab = Table[{a -> aa, First@FindRoot[ Sum[n (E^(-beta/n - aa n))/(Sum[ E^(-beta/n - aa n), {n, 3, 12}]), {n, 3, 12}] - 6, {beta, 35}]}, {aa, 0, 30, 0.15}]) // TableForm; It gives me the error: The line search decreased the step size to within tolerance specifie...

I have come across two supposedly identical definitions of lattices in the lattice crypto literature. There are mainly these two definitions of lattices, the first considers lattices as discrete additive subgroup and the second is the common vector space definition. Definition 1: Discrete additiv...