We know that not all people have the same screen resolution in their computer monitor. Some people prefer widescreen display in 15'', when other uses 17'' and more for their computer experience. I am designing a web page that in...

I have the following csv file: ID,PDBID,FirstResidue,SecondResidue,ThirdResidue,FourthResidue,Pattern RZ_AUTO_1,4tov,1404,1405,1518,1519,CG/AA Canonical ribose-zipper RZ_AUTO_2,4tov,1405,1406,1517,1518,GU/AA Naked ribose-zipper RZ_AUTO_3,4tov,1043,1044,1047,1048,CC/GA Naked ribose-zipper RZ_AUTO_4,4tov,1556,1557,1514,1515,CC/GA Naked ribose-zipper RZ_AUTO_5,4tow,130,131,99,100,AU/CA Canonical ribose-zipper RZ_AUTO_6,4tow,766,767,1524,1525,AA/CG Canonical ribose-zipper RZ_AUTO_7,4tow,131,132,98,99,UC/AC Canonical ribose-zipper I need to go through each row and print rows where the...

I was reading through Stephen Hawking's explanation of 2-dimensional space. In that he mentioned that it will be very difficult to design a living being that could exist only in 2 spatial dimension. What are the fundamental problems arise with...

I was doing a Cambridge Tripos, and the task was to prove Zorn's Lemma and show where the Axiom of Choice was assumed and how it fit into the proof. Reading a paper, I found this: To prove Zorn’s lemma,...

I recently came across the phrase "No se toca" over at Reverso. Had I not seen so many instances of this (both at Reverso and in a regular Google search), I would have thought that it was some sort of...

I'm a guitar beginner who knows the basic, non-barre chords and is now learning some barre chords. I've noticed that, usually, barre chord shapes are just like non-barre chords but shifted. For example, the B major chord is exactly the...

My opponent controls a Planeswalker and uses its ability. End of turn. I play In Bolas's Clutches and target that Planeswalker. It comes under my control (right?). Can I now use this Planeswalker's ability or do I have to...

eurocoder 06/24/2018 at 10:48.
**4** answers,
**286** views
forces potential potential-energy dimensional-analysis si-units

The gravitational potential $G_{pot}$ has units of energy per unit mass: $$ \bigg[\frac{J}{kg}\bigg] = \bigg[\frac{kg m^2}{s^2kg}\bigg] = \bigg[\frac{m^2 }{s^2}\bigg]. $$ The gravitational force is $F = - \nabla G_{pot}$ so this would lead me to believe that unit-wise, due to...

The manual of bodegraph shows how to construct the grid in dB, see With MWE (from manual) \documentclass{article} \usepackage{bodegraph} \usepackage{tikz} \begin{document} \begin{tikzpicture}[yscale=2/30,xscale=7/5] \semilog{-2}{3}{-20}{10} \end{tikzpicture} \end{document} But how can I construct something like this ...

I'm trying to add a table of contents to a template which I found on Sharelatex.com, but upon adding \tableofcontents, I obtain the error "! LaTeX Error: There's no line here to end." Anyone has a clue as to what...

From the question What are these four “waffle-like” structures on top of the Long March 2F just launched? and @RussellBorogove's answer there we can see that the Long March 2F carrying the Shenzhou-11 crew had grid fins. above left: Screen...

Q. Solve for $x$, $y$ and $z$ if $$(x+y)(x+z)=15, $$ $$(y+z)(y+x)=18, $$ $$(z+x)(z+y)=30. $$ Solution: I expanded each equation above as : $$x^2+xz+yx+yz=15, \tag{1}$$ $$y^2+xz+yx+yz=18, \tag{2}$$ $$z^2+xz+yx+yz=30. \tag{3}$$ Then I subtracted $(1)-(3)$, $(2)-(1)$ and $(3)-(2)$; so I got the equations...

Why do the ratios of successive values of integers $a$ and $c$, where $a^{2}+(a+1)^{2}=c^{2}$, appear to converge to $$\frac{a_{n+1}}{a_{n}},\frac{c_{n+1}}{c_{n}}\rightarrow3+2\sqrt{2}$$ I rigorously generated all the {a,c} pairs where $a^{2}+(a+1)^{2}=c^{2}$ for $a<10^6$: {3, 5}, {20, 29}, {119, 169}, {696, 985}, {4059, 5741},...

uhoh 06/24/2018 at 07:13.
**1** answers,
**196** views
launch-site russia identify-this-object baikonur-cosmodrome

The caption given in the third image included in the Space.com page Expedition 56: The Space Station Mission in Photos reads as follows: At the Baikonur Cosmodrome launch pad, remote-controlled cameras are set up to capture every angle of the...

With Germany winning 2-1 against Sweden yesterday, the group F qualification scenarios have become complex. In the next round of group games, if Germany beat South Korea 1-0, Sweden beat Mexico 1-0. Then Mexico,Sweden and Germany will all have 6...

Hello Stackoverflow users, I am a noob at powershell and this is part of my 1st script I am creating :). I am lost on how I would run a script that is dependent on a drive. I have script...

I'm trying to learn a new method for learning and understanding chinese characters. So, I decided to start with memorizing every chinese radical. I'm use two different source but both wrote two different pinyin. Which one is right?

$f(x) = ax^3+bx^2+cx +d$, determine a, b, c, and d such that the graph of $f$ has a extreme in $(0,3)$ and a point of inflection in $(-1,1)$. When is a quadratic I know that the formula $V=(\frac{-b}{2a},\frac{-\triangle}{4a})$ gives...

I would like to prove the following, $$\sum_{k=0}^{n-1} \text{cos}\left(\frac{2\pi k}{n} \right) = \sum_{k=0}^{n-1} \text{sin}\left(\frac{2\pi k}{n} \right) = 0$$ This is equivalent to showing that if we have a regular n-gon, all of the vectors in $\mathbb{R}^2$ pointing to every vertex...

The transformer rating is given in kVA, but the load connected is always considered in watts. Why? Eventhough, the load active power is represented in watts it has some reactive power, right? Is the total power consumed by load (active...

r3robertson 06/24/2018 at 01:38.
**6** answers,
**276** views
python python-2.7 dictionary list-comprehension dictionary-comprehension

If I have a dictionary containing lists in one or more of its values: data = { 'a':0, 'b':1, 'c':[0, 1, 2], 'pair':['one','two'] } How can I get a list of dict tuples paired by pair and iterating over c,...

What is the meaning of the thick line with the 8 on top in above the photo? I have looked everywhere on the web, but can't find anything. Any help would be appreciated.

How do I change the A,B,C labelt to make them into math symbols? For example say I want to change A to read $\mathbb{A}$? \documentclass[tikz,border=3.14mm]{standalone} \usepackage{tkz-euclide} \usetkzobj{all} \begin{document} % preamble added by a rodent ;-) \begin{tikzpicture}[scale=2] \tkzDefPoint(0,0){O} \tkzDefPoint(1,0){Z} % \tkzDefPoint(-0.7,-0.1){A}...

Attunement rules state that a character can only be attuned to three different magic items. Is this intended to be knowledge about magic that a character is aware of? Or is this meta-knowledge for the mechanics of the game (like,...

In Tianjin, sometimes we see 朝鲜冷面 (Cháoxiǎn lěngmiàn) for sale: Breaking this down: 朝鲜 (Cháoxiǎn) = Korea or North Korea, depending on context 冷面 (lěng miàn) = cold noodles YouDao says 朝鲜冷面 translates to "Korean cold noodles". Question: Are 朝鲜冷面...

Disclaimer: I am not sure if this question belongs to this site or to interpersonal.SE. However, I only lived the situations described below when traveling and people taking photos were for sure also tourists. Recently, my family and I (two...

To mathematically solve a game you have to prove, using various tehniques, that some player will win, lose or draw the game. Specifically I'm interested in solving games by brute force (trying out all the possible combinations). If I were...

Solo yesterday at 22:23.
**1** answers,
**289** views
marvel marvel-cinematic-universe avengers-infinity-war

In Avengers: Infinity War movie, we saw Red Skull guarding Soul Stone on planet Varmir. We also saw that he was flying/ floating. Provided that he was a human, how could he do that?

Suppose I pay $200 to cover a medical expense. Also suppose that my insurance would only cover $10 of this and so I don’t even bother submitting a claim. Would I be eligible later to withdraw the full $200 tax-free...

So this is for the same story as my "Boats for tall people" question earlier, but not about boats. In this world there is one religion that almost every race has a different interpretation of. For example: The really tall...

I have an old Peugeot Vagabond. It's been sitting out in the New Mexico weather for more than a few years. I'm wondering if it's worth trying to fix up, or if I should just go get a new bike?...

I’m currently going through harmonics and I do not at all understand the fundamental frequency. I understand that such is the simplest vibration of a string, however, if such is only half a wavelength how can it have frequency at...

(click to enlarge) I acquired a bunch of camping gear from a friend who moved out of the country. There was one of these hockey puck shaped disks, half grey half black, remaining in the cooking gear, but I...

Is it possible to produce a variable battery1 sign (battery with one up slanted arrow) in circuitikz? There are options for vR and vL (variable resistor) but not for the battery1. I need it to represent a variable power supply....

In "Introduction to Godel's Theorems," the adverb "effectively" is almost ubiquitous: effectively enumerable, effectively decidable, effectively computable, etc. Here are some sample quotes: A property/relation is effectively decidable iff there is an algorithmic procedure... A numerical property or relation is...

I'm effectively looking to change the 'Could' in this question to a 'what' or 'How'. Could higher land-based life exist on a planet with a pressure of about 1 MPa? I'm working on a story in which humans visit a...

When creating new fields, some profiles are checked by default on page load. How are these profiles determined ?

I am studying set theory and have recently encountered the concept of ordinals. The way I understand them, we are trying to classify all well ordered sets (which have desirable inductive properties) into equivalence classes w.r.t. a relation that preserves...

lumee yesterday at 18:00.
**1** answers,
**0** views
javascript digital-signature digital-certificate webcryptoapi

I'm trying to sign data using the WebCrypto API, but instead of creating a private/public key and exporting it to pkcs#1 or 8, I would really like to use a user's PKCS#12 to sign data. I've read the W3C spec,...

I'm writing a sci-fi story in which a group of people are stuck in an endless desert. While I've mostly figured out the philosophical aspects of the story, there are still the practical ones. It's a desert. No water, scarce...

Following up to some questions asked in comments to my answer to this question: With pressure-fed engines, is any measurable thrust generated by venting the pressurant out the engine bell after flameout? After Main Engine Cut-Off (MECO) there was ~3500...

I noticed that Chinese language uses very little punctuation, especially missing out spaces between words. Because of this feature, is it possible to build sentences where if you skip one (or more) characters from the beginning, you get entirely different...

Mirko yesterday at 16:33.
**1** answers,
**57** views
experimental-chemistry solutions analytical-chemistry titration precipitation

In my book it is written that in order to minimize systematic error in Mohr method for argentometry it is a common procedure to conduct a blank titration with $ \mathrm{Ag^+} $ against a $\mathrm{CrO_{4}^{2-}}$ solution (with the same concentration...

Anyone know why this happens? Is this a bug of bash? x='mnt:[4026532411]' [[ $x == $x ]] && echo OK I am expecting result OK, but it did not. Of course, this works [[ "$x" == "$x" ]] && echo...

In halmos(1958) - "A field by definition, has at least two elements; a vector space, however, may have only one". Can you explain both parts of the statement?

Hydrous Caperilla yesterday at 14:30.
**3** answers,
**31** views
thermodynamics temperature thermal-radiation

Consider a body (not blackbody) at temperature $T$ kept at surrounding of temperature $T_s$. Due to the temperature difference, heat will be lost from the body in the form of radiations from its surface area which in turn will change...

I need to transfer the equation below into a latex. Unfortunately, my code does work as intended: \usepackage{amsmath} \begin{align} C(t) = (1-\alpha) (\theta+\lambda) &\cdot \left[K(t)+\int_{t}^{\infty} \left(W(v)-G(v)e^{\beta(v-t)}\right) e^{-\int_{t}^{v}\left(r(u)+\beta\right) du}dv \\ & \quad -\int_{t}^{v}T(v)e^{-\int_{t}^{v} \left(r(u)+\beta \right)du}\left[1-e^{\beta(v-t)} \right]dv \\ & \quad P(t)\left(M(t)+\int_{t}^{\infty}\dot{M}(v)e^{-\int_{t}^{\infty}i(u)du}dv\right)\right] \end{align}...

I'm new to coding C++ and I want to get some insight on my progress. Can you guys take a look at my program and give me some feedback on it? #include <iostream> using namespace std; int main(){ int day{};...

The equation $5-\dfrac{y}{7}=19$ is solved by cancelling out 5 on both sides and then $-\dfrac{1}{7}$. However, why can the $-\dfrac{1}7$ not be cancelled out first. If this is done, the answer is -138. The actual answer is -98 which makes...

My SpaceEnter and Backspace keys are not working on my dell vostro laptop