I would like to essentially recreate the following figure in Inkscape, but I don't know how I might go about the "particle cloud". Is that something I can do in Inkscape?
Physically, the electric field is defined as:
the force per unit charge that would be exerted on a test charge.
What is confusing me here is what exactly is meant by
per unit charge
If the definition of electric field was defined as
The force that a test charge (of any magnitude) would exper...
I am a student who's preparing for one of the world's toughest entrance exams (JEE Mains and Advanced)... and well only 9 months are left. I have hell lot of work to be done on daily basis, such as revision of notes , practicing problems , attending classes , making short notes , reading referenc...
I am writing a class that splits text file apart. Chunking them into 5000 line groupings so I can upload the files contents to another limited system.
The text file contains a Json object on each line. Separated by newline characters.
{"Name":"Dog"}
{"Name":"Dog"}
{"Name":"Dog"}
{"Name":"Dog"}
M...
I know based on my previous question that I can still use detect evil and good as a fairy, and dispel evil and good
directly calls out what happens, but what about protection from evil and good? It says that if the target is possessed by one of the specified creatures, one of which being fey, the...
I want to use an N-channel FET as a pass gate SPST switch to let an FTDI reset signal through to to my microcontroller or not, based on an independent signal.
simulate this circuit – Schematic created using CircuitLab
I want the FTDI-DTR signal to be capable of resetting the MCU when the 0V/3....
If we have a conic with equation: $ax^2 + 2hxy + by^2 + 2gx + 2fy + c = 0$ or S =0, and a point $P(x_1, y_1)$.
Then the equation of the chord with P as its midpoint is given by T = $S_1$.
$S_1$ is obtained by plugging point P in S. ($S_1$ = $ax_1^2 + 2hx_1y_1 + by_1^2 + 2gx_1 + 2fy_1 + c = 0$)...
The lifetime of a device is a continuous random variable having the continuous uniform distribution $\mathrm{Unif}(0,15)$. Suppose that under an age replacement strategy a planned replacement at age $T=12$ costs 300 dollars, while a failure replaced at time $X <T$ costs 350 dollars. Determine the...
Paladins and rangers get their spellcasting at level 2, as they are half-casters. However, a ranger 1/paladin 1 would have the spell slots of a 1st-level full caster. Would this hypothetical character have any abilities they could use their spell slots on?
In the last few months, French President Macron has repeatedly said that Europe should avoid that Russia win the war with Ukraine see for instance. Also envisaging the send of NATO troops to Ukraine.
Yet France is one of the smallest contributor to Ukraine military effort (given its size).
Has l...
If someone 30 years old puts away money in mutual funds planning to redeem at age 60, is this a good idea?
Most mutual funds are 3-4 years old. Would they last 30 years? What is the shelf life of a fund?
This sentence is from the question corner (also known as SBS) of Volume 10 of One Piece:
Transcript:
Q: When Patty the Cook says "I'm turniply saucy," what does it mean?
A: "I'm terribly sorry." He tends to make things sound like food. For example, he might say: "He's quite a man. He did lettuc...
So, I completed my bachelor's in mathematics a month ago, and I'm planning to move to another country to continue my studies. I really love mathematics and I want to apply to a master's program in pure mathematics.
I am fluent in English and got a band score 8 in IELTS. So, I am planning to apply...
I posted a question yesterday in which I realized a 100 MHz oscilloscope with 100 MHz x10 probe will have hard time capturing high frequency signals such as the ringing on rising/falling
edge, and using a higher bandwidth probe allows the whole system to capture more precise samples.
After some s...
We will say a string \$x\$ is cyclic maximal if there is no way to cycle its elements to get a lexicographically larger string. In other words there is no \$a\$ and \$b\$ such that \$a \oplus b = x\$ and \$b \oplus a > x\$, where \$\oplus\$ is concatenation.
For example [3,2,3,3] is not cyclic ma...
How could I rotate axes in pose mode to align them with axes in edit mode?
When I did armature for a model, I ended up having bones with local space axes pointing in different directions in edit mode at compared to pose mode. Have a look at the screenshot below please.
I suspect this may have ha...
I recently found this game and have been enjoying it. Basically, there is a grid of colored tiles and you act by clicking on empty spaces. When you click an empty space, the first tile (if any) in each of the four axis-aligned directions is selected. If any color appears more than once, all tiles...
I noticed packages have version constraints in their metadata (e.g., git). What algorithm does APT use to satisfy these dependencies?
E.g., Spack uses Clingo as its dependency solver, Conda and Mamba use libsolv, Pip uses its own custom backtracking solver.
I want to know how to prove the statement: If $T: V \rightarrow\ W$ is surjective, then $\dim(W) \le \dim (V)$.
I am thinking about proof by contradiction...but don't really have a rigorous proof other than intuition.
I've applied the joint compound,sanded it down. Is it necessary to prime the mud before putting self adhesive wallpaper on it? I don't plan on taking it down or painting over it in the future.
Would priming the wall change how it sticks etc?
How can I find the impulse response for the following system in time domain? I actually would like to find my mistake in my attempt. Below is what I have tried according to the answer given for this question: Why is particular solution zero for an impulse excitation signal?
The given system/circ...
For my project, I designed a PCB using press-fit connectors. However, due to the footprint error, the holes were larger than they should have been, and these PCBs are 8-layer high-speed PCBs.
Therefore, I want to use these PCBs, but the press-fit pins are too small for the holes. Can I solder the...
An American citizen, died in Dominican Republic 15 years ago without a Will. His last address was in the DR. We recently learned he owns property in Italy (he was born there and inherited his parent's house & properties). His children as his only heirs now have the responsibility of dealing with ...
Background
The standard model of particle physics is entirely determined by writing down its Lagrangian or, equivalently, writing down the corresponding system of PDEs.
Every set of PDEs has a corresponding set of "continuous symmetries" (essentially continuous changes of variables). The well-kn...
I have the following issue. I want my daughter to have an AirTag in her bag, but I want to disable it throughout the time she in school, as it interacts with her school iPad and makes her uncomfortable because the iPad tells her she is being tracked in front of her friends, for example.
Is there ...
In Numbers 1, a census is recorded with the number of people being 603,550. A second census recorded in Numbers 26(after the 40 year period)with the number of people being 601,730. This was only the adult men, the whole number of people including women and children would be around 2 million!
Yet ...
I was recently doing a chemistry assignment about bond energy when I noticed the incredibly low bond energy of nitric acid. Given the high bond energy of a nitrogen triple-bond, this set me wondering about its utility as a rocket fuel, and I quickly wrote out a few equations:
Methane-Oxygen Combi...
The Testimony of the Apostles concerning the ministry, miraculous deeds, and alleged Resurrection, was fantastic, way out of the ordinary, revolutionary, and mind-boggling! The message they proclaimed was not ordinary 5 o'clock news material! It would pique everyone's interest that heard it.
And ...
There is a total solar eclipse happening in North America in early April. People will be travelling long distances to see it, and towns near where I live are warning residents to buy gasoline in advance so they won't need to go out on the day (due to crowds) and warning visitors that parking and ...
I have a tree, $T$, with $n$ nodes. My goal is to assign a non-zero weight to each node such that the following condition is met:
Upon removing any arbitrary node, the total weight of nodes in each resulting connected component should be equal.
Consider the following tree as an example:
1 -- 2 ...
Please vote to the issue tracker https://issuetracker.google.com/issues/330368298
I just noticed some crashes for my app by looking at Firebase Crashlytics which seems to be related to Google AdMob library which tries to use SharedPreferences but it fails to get a preference because of the cast ...
As far as I understand, GNU had a goal to create a completely free (libre) operating system, and to that end, created FOSS replacements for many UNIX programs. It puzzles me why they didn't try to create a replacement for man, as it was a standard program in UNIX ever since V2, and pretty importa...
This is from the exercise problems(not the live contest) for regional math competition.
Let triangle $ABC$ satisfy $\angle C > 90^\circ$ and let its incenter be $I$. Let $\ell$ be the line parallel to $BC$ passing through $I$, and call $\ell \cap AB = D$, $\ell \cap BC = E$. We know that $AI = 3$...
First time posting here so please forgive any lack of adherence to best practices.
sin(x) is a transcendental function. However most common values for the angle x will yield an algebraic number result. In particular, sin(q) (in degrees) or sin(qπ) (in radians) will always be algebraic.
I can reve...
I have heard in the ZDF news (0:40 minutes) :
10000 Schuss aus Bundeswehr Beständen soll die Ukraine jetzt sofort
bekommen.
Isn't "jetzt" redundant, given that "sofort" is already used? In English and Romance languages, the words equivalent to them would never be used together. For instance, a ...
An election recount is underway in one Russian district after
President Vladimir Putin failed to win the vote there, according to
local reports.
In fact, one of Putin's political rivals in the recent presidential
election was recorded as gaining 10 times as many votes, reports said.
The polling ...
Poles hold the most negative views of Russia among all countries
included in a new global survey by the Pew Research Center, which also
shows that attitudes towards the United States, NATO and the European
Union are the most positive ever recorded in Poland.
Only 2% of Poles hold a favourable vi...
I'm looking for a book I read at least 20 years ago (2004) with a female main character. In their world, only boys and men really have magic, but the main character does as well.
She goes to a magic school and ends up getting into a fight with one of the kids and having to leave. I remember she u...
This Forstner bit is 92mm in diameter, it's very large. I need to make a clean hole into a block of wood.
Looks a bit dangerous, or looks like there's a risk to break the bit or tool.
So how am I supposed to use it, with a hand drill, with a drill press, and at what rpm ?
Common sense tells me to...
The Russian for "I play guitar" is "Я играю на гитаре". However, this more directly translates to "I play on guitar", and if I use translation tools to translate "Я играю гитаре", that also becomes, "I play guitar" even though "I play on guitar" is a common expression as well in English.
So how c...
How can I get chromium to show me a list of all the webcams that it can see?
I do not want to use a website. I want something native in chromium that I can use offline without visiting a third party service.
How can I enumerate all of the webcams that my web browser can see?
Prove the inequality
$$d_{H}(\mathrm{spt}(\mu),\mathrm{spt}(\nu))\leq W_{\infty}(\mu,\nu)$$
where $d_H$ denotes the Hausdorff distance between the supports of the measures $\mu$ and $\nu$, and $W_\infty$ is the Wasserstein infinity distance between $\mu$ and $\nu$.
I believe this is obvious becau...
Could you have a telescope advanced enough to see a planet as far away as Neptune is from Earth, in a civilization with a tech level equivalent to 1100 AD? Would it be possible to discover all the planets in the solar system?
Just assume the furthest planet is Neptune, in terms of size, distance,...
I'm trying to re-find what might be a short story or a real-life account by a well-known science fiction author. This author was talking to a retired aerospace engineer who spun a tale about a project he worked on to come up with the absolutely most hideous rocket that could be conceived. The i...
I want to apply as a PhD candidate and therefore looking up on various potential supervisors who have common research interests. My approach is by first visiting their webpages, looking up on the Research Interests mentioned and then checking their recent publications on a particular topic I am i...
I am trying to create a soft body/ cloth simulation where the eyeballs inflate and pop out of the eye socket and form into a heart shape.
I tried quite some different approaches now but none worked out so far.
At first I shaped a heart from a cube and subdivided the faces so it would create a smo...
Let's say there is a fire insurance company X with most of its clients from Region Y. Say that this was Company X's intent, with the knowledge that the following scenario might happen.
A wildfire starts in Region Y, and Company X suddenly owes a lot of money to property owners in Region Y because...
As stated in this answer, Many of the Non Vedantic Astika school such as Samkhya, Nyāya etc. Held to the belief that the soul is all pervading/omnipresent.
My question is do these darshanas offer any argument to logically justify the existence of multiple all pervading atmans?
I remember learning in Yoreh Deah about a halachic case about a child who fell into honey and died, and the Tosfos Yom Tov declared the honey not kosher. Where is that story found?
I wish to number theorem in a report with x.y if the theorem is the y-th number in section x (of some chapter), without chapter number.
In other words, I want the theorem be numbered like \newtheorem{theorem}{Theorem}[section], but without chapter number.
I know this may be easy and have some dup...
I have a contractor putting a pocket door in a wall in our 1925 house. He removed plaster from one side of the wall and exposed a single strand of K&T wire right where the door needs to go.
This conductor was feeding a 3-way-switched ceiling light, carrying current routed through our 2nd-story fl...
In English we often abbreviate Information Technology as “IT”. There is also “ICT” for Information & Communications Technology - which to the best of my knowledge means the same thing (at least nowadays; I think ICT was more common in the past, but IT is more common today).
I don’t speak much Fre...
The concept of many are called but few are chosen is very alive in the Bible where Jesus says that no one can come to him unless God allows it.
Mathew 22:14
Indeed many are called but few are chosen
Also the verse that states that a man cannot receive anything unless it is granted to him from h...
I want to optimize a system containing a metal ion in between two graphite sheets. For that can I use Gaussian software? If so how can I create the input file with two graphite sheets?
I came across with the following problem: Let $p$ be a prime, prove that $$(p-1)^np^{(n^2-n)/2}\mid \prod_{k=1}^n(p^n-p^{k-1})$$ for any $n\in \mathbb{N}$. It is quite hard to prove it using elementary number theory. However, the problem becomes trivial if we notice that $|\operatorname{GL}_n(\ma...
I have been looking for ways to train a Q-learning agent for a multiplayer zero-sum game (a variation of Tic-Tac-Toe in my case). I came up with a learning strategy I haven't found anywhere else, and I want to know if it would work. Here it is:
The agent learns through self-play. It receives a +1...
I'm reading this research paper and some of the citations are marked like this:
[29•] or [29•,[30],[31•]•,[32],[33],[34]]
The bullet points are in superscript, as well as nesting in the bracketing. There is no legend for this symbol in the paper; does it have a standardised meaning?
Why is Jeremiah quoted by the apostles when Jesus asks his disciples who do people say the Son of Man is? Mt 16:14:
And they said, "Some say John the Baptist, but others Elijah, and others Jeremiah or one of the prophets.”
What rumors were going around about Jeremiah the prophet?
I'm a full-time maintenance technician with no University education (though I did get college credit in highschool for physics and statistics 9 years ago), and I have plenty of interests I want to indulge in, feeling like I've already wasted so much of my time in life. I'm just searching for some...
In the current Wikipedia entry for covers, it says that
if ${\displaystyle C=\lbrace U_{\alpha }:\alpha \in A\rbrace }$ is an indexed family of subsets ${\displaystyle U_{\alpha }\subset X}$ (indexed by the set ${\displaystyle A}$), then ${\displaystyle C}$ is a cover of ${\displaystyle X}$ if $...
I originally posted this question on Math.SE and received some interesting comments but no answers. Now that some time has passed I thought that it might be appropriate to post here as well; perhaps it will incite some interesting discussion.
I have always felt moderately "skeptical" about the n...
What are these splitted flows of data called and is there a tikz/pgf library that can generate them?
I have looked at https://tikz.dev/ for similar diagrams but found nothing similar.
I've been asked to calculate the cross correlation in the 3-12 Hz band between two simultaneously recorded brain signals in two distinct brain areas. Data were acquired at 32 kHz then preprocessed by applying a 3-pole Butterworth filter (lowpass 1 kHz) then downsampling to 2 kHz. By applying the ...
In X-Men '97 Season 1, Episode 1, a quick shot of a Daily Bugle front page appears prominently after Cyclops blasts villains in a warehouse. The headline reads "Benetton's Mutant Fashion Show" and features characters who seem to be nods to existing mutant characters.
(This isn't the only mutant ...
I'm an English learner and came across an exercise question today:
Sentence: Many of the world's great novels are reported ___ (make) into movies last year.
Choices: [made/to be made/to have been made/have been made]
Which is grammatically correct and which sounds more natural? If more than one a...
This is from the title of an article on bilingual people forgetting a language.
"How it is we forget languages." Physchology Today-Language forgetting
The structure "How it is ......" has caught my attention. I can understand the meaning, but it reminds me of a very similar structure "How is it ....
Suppose $S$ is a submodule of the $R$-module $M$, then it is not necessarily possible to decompose $M$ as
$$ M = S \oplus S^c . $$
However, if we suppose that $M$ is finitely generated and Noetherian, and $S$ is a submodule, can we always find a submodule $S'$ that has a trivial intersection wit...
I want to list process by their executable name, using the comm column. But it always gets truncated even when it's the last column:
$ ps -C systemd-tty-ask-password-agent -o %cpu,%mem,comm
%CPU %MEM COMMAND
0.0 0.0 systemd-tty-ask
How do I make sure that the COMMAND doesn't get truncated?
Since updating to 5.71 I see that on the membership tab of the contact record I see the current membership, and below that any pending or expired memberships. All good. However I'm now also presented with a listing of other membership types, with the text:
"The following Membership Types are asso...
Recently, during a discussion with a senior electronics engineer on an industrial project that operates at 48V and is housed within a metallic casing, a point of contention arose regarding ESD compliance. The engineer argued that for ESD compliance, particularly in the rail industry where high-vo...
I have a Polar watch with a Heart Rate Monitor T61 that I haven't used in years. I followed the manual to connect the watch to the monitor, but it failed. I suspect the battery is empty. I see no easy way to replace it.
How can I service the monitor and replace the battery?
I am trying to find a way to create procedural extrusions of an object. Assume our base object is a manifold object with a curved surface, such as a sphere (Fig 1). I would like to use a Curve object or similar to create an outline which is snapped to the object's surface (Fig 2). Is there any pr...
I am trying to make a reusable element for a project using tikz, but I am having trouble aligning the elements neatly. I will later feed content for these elements from CSV-files, but one step at a time.
My goal is to make a figure like so:
It is an outer box containing a 25x25mm imagebox at its...
I want to split a list of positive Integers into sublists whose
ascending elements differ by 1.
list = {1, 0, 1, 0, 1, 4, 5, 6, 5, 8, 1, 2};
This can be done easily using Split
Split[list, #2 - #1 == 1 &]
{{1}, {0, 1}, {0, 1}, {4, 5, 6}, {5}, {8}, {1, 2}}
But how can we get the same result
(a...
Looking for this old movie with stop-motion effects. I have seen it TV in early 2000's in Czech dub, original language probably being English.
I remember only isolated scenes from the movie, but now after the years I'm intrigued by the idea of blending of Roman style intrigue and ancient mytholog...
When I type something on insert mode and press escape to get normal mode, the cursor goes away and the Neovim does something behind the scenes for a couple of seconds. I can stop this behaviour with ctrl + c and continue on normal mode.
Is there a way to find out what happens behind the scenes to...
Inspired by this question, pre GPS all space craft used inertial navigation with periodic fixes from the ground. Inertial systems will drift with time, so the longer between last fix and landing the larger the dispersion in landing point or even a non survivable re-entry trajectory.
This means th...
As per title, I'm having trouble understanding how it's possible for a person at 45°N to see the Sun rising in a northeasterly direction for 6 months of the year. Even during the summer solstice, the Sun is circling the Tropic of Cancer which is well south of 45°N, so how come it is seen rising n...
I am new to apex rest . I am trying to expose an apex class to an external system to do post operation in salesforce. I am a bit confused with the response codes and response message which I need to send back to external system. I was referring to this link https://developer.salesforce.com/docs/a...
Since angular acceleration is absolute on entire body (correct me if i am wrong), can we choose an arbitrary axis to calculate the torque and then calculate the angular acceleration? (Regardless of how the calculations be difficult.) If it is possible, what will be the meaning of the calculatio...
It strikes me as contradictory that the scientific community will say that we don't know what dark matter is, but be happy to state things like "dark matter makes up about 85% of the cosmos" (source: phys.org)
Is there something wrong with the way I'm thinking about this? If MOND is correct for e...
Consider the following table:
tab = RandomReal[{0, 1}, {10, 3}];
subsets=Subsets[tab, {2}];
How to quickly reduce subsets to a 2D table of with each row being joined elements of each row of subsets?
This is my solution, however, it is ugly and potentially slow:
flattened = Flatten[subsets, 1];
v...
It would be convenient for both astrophysics and for the plot of the story set in this world if there exists a ninth planet in the Solar System far outside Pluto’s orbit (with appropriate mass, Ap, Pe, etc., since we can explain TNO clustering and big plot points in one go). Story aside, in this ...
I'm trying to start a subprocess with a unique process name from a bash script. This works:
bash -c "exec -a MyUniqueProcessName './start_service' &"
but my problem is that I want to pass a parameter to start_service. If I do something like
bash -c "exec -a MyUniqueProcessName './start_service p...
Suppose one performed an experiment, which was a bad one - judged by quality control measures. Can one still rely on the p-values generated by statistical tests on this data?
As a specific case, suppose it is reasonable to think of the experiment's failure as causing a reduction in the amount of ...
Sometime around 2000, I was introduced to Wraith in the worst fashion ever, and it destroyed any interest in me ever reading the rule portions but I learned to love the worldbuilding of it.
In essence, I met a guy at a game store and they asked me if I knew Vampire and Werewolf and that they had ...
I have a problem with creating the following table:
I wrote this code which creates the following table instead of the one above.
\newcolumntype{Y}{>{\centering\arraybackslash}X}
\renewcommand{\arraystretch}{2}
\begin{tabularx}{\textwidth}{|*{4}{Y|}}
\hline
Identificador & \multicolumn{...
I have fitted a Cox ph model using both R 4.3.1 and SAS 9.4 with the same data. In SAS, I used Proc phreg, while coxph function in Survival package, the model formula are totally the same, but I got different results (e.g., coefficients), what's the reason? And I wanan know how to modify my SAS p...
Let $E_a: y^2 = x(x-1)(x-a)$ be a smooth proper relative elliptic curve over $\text{Spec}(A)$, with $a\in A$, and assume $\text{Spec}(A)$ is a $\text{Spec}(\mathbb{Q}_p)$-scheme.
Let $R^1f_*\mathbb{Q}_p$ be the higher direct image of the etale cohomology of $E_a$, with respect to the structure mo...
Is 'come' a subordinating conjunction in the following sentences?
'Come next February, he should have completed his degree.'
'He'll be wishing he'd arrived at Oslo come the winter.'
My host is Fedora, and I want to protect myself against 0day KVM/QEMU exploits that execute code on the host. For example there have been CVEs where if we run a specially crafted malicious windows executable on the windows VM as admin, it would execute code on the host.
I analyze malware from tim...
Adapters exist for providing 120V from a 240V receptacle, such as for powering a gas range or dryer from the original electric range or dryer outlet:
Does anyone make a similar adapter that goes in the other direction?
Specifically it would plug into an existing 120V split kitchen receptacle and...
Is there a built-in function or set of functions in Mathematica that can take a set of points in the x-y plane and determine the ellipse of minimum area that contains all of the points? I am sure there are algorithms out there, but oftentimes I have found that after I implement an algorithm with ...
I really need help trying to get this to work. I'm working on a faction that primarily employs spell swords as their Frontline force.
They have other parts such as artillery, combat medics, and other such units but for right now I want to focus on the main melee forces.
What's stopping me is that...
I am using the java stream API to handle incoming requests my employee service.
A few questions I had are:
Does using the streams API in the way I'm using it below affect the performance of the application?
I have not seen any tutorials using the streams API in the way I am using it. So is it b...
I was running updates on two test servers (used to test new Ubuntu Desktop and Ubuntu Server releases) in anticipation of next month's release and accidentally ran the script to update to the next release. Typically, this is not a problem since it should come back with a message that no release w...
In many universities there are honors math classes. For example, instead of having five "mix" Calculus I sections they arrange one "honors" class and four "ordinary" classes.
How effective is this? What are the arguments for and against such arrangements? Is there any research showing the effecti...
Given a polynomial $P$ with integer coefficients in finitely many variables,
we denote by $v(P)$ the product of the absolute values of the non-zero coefficients
and the non-zero total degrees of the monomials of $P$.
Since there is no general algorithm to decide whether an equation
$P(x_1, \dots,...
What was the most efficient aircraft design (based on factors such as lift, drag, and fuel consumption) but not developed or scrapped due to issues with long term viability and maintenance, operations and repair?
I'm studying limits and colimits and more precisely I'm looking at forgetful functors and I'm trying to see if they preserve limits and colimits. In order to do that I first look at terminal and initial object and check if they are preserved, if not then I can conclude, but if they are preserved ...
I have designed an analysis where I am testing a lot of variables together. So I first apply a Lasso regression to select the top variables, and then I run a standard (unregularized) multiple regression with only the selected variables. Which p-values should I report?
I was initially reporting th...