I know to re-enter the USA you are required to leave the continent and neighbouring islands. I plan to go to the USA at the end of May, stay for up to 90 days, but I would like to visit again and want to know how much time anybody has spent between visits.   Is one month enough? I will enter first with my girlfriend who is from the US, I am a British citizen, then we will leave to somewhere outside the continent, then we would like to go again for another period of time before finally leaving again to go elsewhere.  From what I can find out it appears it's totally up to the border official. I have funds to support myself for the entire duration of both stays, I will not be working, I will have onward travel plans each time, i.e. a flight out after the first visit and after the second.  Unfortunately I'm not in the UK now and won't be before I go to the US otherwise I would apply for a 6 month visa, and from what I understand, applying for a 6 month visa outside your home country reduces the chances of it being granted anyway. So basically what are the chances of me being allowed to enter again after just 3 or 4 weeks outside the US? Or is it just a chance I'll have to take? And anyway who would be responsible for me leaving the states if I was refused entry? I'd have to get a flight myself or the US immigration would put me on a plane somewhere? Ha, I know it's a lot but any help, or if anybody has experience of multiple entries, any advice would be greatly appreciated!! Thanks!  Ok, clearly similar questions have been asked before, I explained the information I have already gathered from such questions and posts. It is all theoretical. What I want to known is people's actual experiences. How long HAVE people actually left for, WHERE did they go, and how were the border officials attitudes and questions asked upon re-entering?  I explained what I have already found out which you kindly marked my question as a duplicate and linked a similar question to it. But what I am after is people's personal accounts of doing this, not just how it works in theory, it is not difficult to find this information, it is however difficult out to find personal accounts!  Thanks again!
I entered the USA on a Visa Waiver Program (VWP) on 1 July 2012 and stayed until 16 Sep 2012 (78 days).  On what date in 2013 will I be able to travel to USA again under VWP?
How to prove that a compact set in a Hausdorff topological space is closed? integral roots for $f(x) = 41$ if $f(x) = 37$ has 5 distinct integral roots. I'm trying to fix the following TikZ figure, where the circle device in the middle should be embraced by two bended arrows pointing counter-clockwise.    I have drawn these arrows with an arc path, but the tips of the arrows are unexpectedly both pointing upward.  Any idea how to get these arrow tips to follow the direction of the arc?  Here is my code for the above figure:  \documentclass[12pt]{article}  \usepackage{tikz} \usetikzlibrary{arrows} \usetikzlibrary{calc}  \begin{document} \begin{tikzpicture}   \draw (0,0) circle (1cm);   \draw[fill=gray!20]  (23:0.45cm)     -- (23:1cm) arc[radius=1, start angle=23, end angle=-203] (157:1cm)     -- (157:0.45cm) arc[radius=0.45, start angle=157, end angle=23] (23:0.45cm);   \draw[fill] (0,0) circle(2pt);   \draw[-&gt;,&gt;=stealth',semithick] (150:1.2cm) arc[radius=1.2, start angle=150, end angle=210] (210:1.2cm);  \draw[-&gt;,&gt;=stealth',semithick] (-30:1.2cm) arc[radius=1.2, start angle=-30, end angle=30] (30:1.2cm);   \foreach \x/\y in {1/0,2/0,3/0,4/1,5/1,6/1,7/0,0/1}     \node[rotate={\x*45-90}] at ($(0,0)!.75!\x*45:(1,0)$) {\y} ; \end{tikzpicture} \end{document} Why is this quotient space not Hausdorff? Do citizens migrate closer to their workplace within the town? By using the Path tool (F2, 7) I have found some laborers walking very long to eat at home or to warm up in winter.  If I build a house close to a Quarry or a Mine, will Stonecutters or Miners move automatically to this house to avoid long walking distances between the workplace and home?  Or can I assign some citizens to houses closer to their workplace? Random test data: How to do it right? Simple way to see a list of installed iOS apps with their storage space size? The storage on my iPhone is nearly full. Most of the space is used by apps. I'd like to see which apps consume the most space on my device.  Is there a way to get a list of the apps with their corresponding used space? By "used space I mean the installation size (bonus for added user data). $f(x)=x/1$ is not injective? In chapter 3 of Atiyah and Macdonalds Intro to Comm Algebra there is the statement  "We also have a ring homomorphism $f:A\rightarrow S^{-1}A$ defined by $f(x)=x/1$. This is not in general injective." (Note: $A$ denotes an integral domain and $S$ a multiplicatively closed subset of $A$.)  How could this possibly not be injective? If $f(x)=f(y)$ then $x/1=y/1$ so $1x=1y$ hence $x=y$. What am I missing here? I'm having trouble with a proof by induction boolean variable values in PHP to javascript implementation How to make a pattern follow a stroke, path or line? Here is my MS Paint job on a real bad attempt at what I'm trying to achieve:    I have access to Photoshop and Illustrator CS6, and I want to be able to draw a thick line (that is not straight) and have a pattern within the line show arrowheads within the line to indicate the direction of the line. every eigenvalue of $T$ has only one corresponding eigenvector up to a scalar multiplication For a linear transformation $T$ on a vector space $V$ of dimension $n .$ Suppose it is given that for some vector $\mathbf{v},$ the vectors $\mathbf{v}, T(\mathbf{v}), T^{2}(\mathbf{v}), \ldots, T^{n-1}(\mathbf{v})$ are linearly independent, then is it true that every eigenvalue of $T$ has only one corresponding eigenvector up to a scalar multiplication. How to sort this JSON Convergence of $\sum_{n=1}^\infty (-1)^n(\sqrt{n+1}-\sqrt n)$ Please suggest some hint to test the convergence of the following series $$\sum_{n=1}^\infty (-1)^n(\sqrt{n+1}-\sqrt n)$$ I installed an alpha or beta, am I up to date with the final release if I keep upgrading? I installed an Ubuntu alpha or beta and have been keeping it up to date.   So, Should I presume that my system has automatically updated to the next alpha or beta, and will be running the official release when it's finished? Where does the "apply bonuses and penalties in the most beneficial order" rule come from, if it exists? I have seen quoted several places on the internet a rule that one can apply bonuses and penalties in the most beneficial order.  An example I come across frequently (as a druid) is the combination of Natural Bond and . Natural Bond increases your effective druid level for determining the stats of animal companions but cannot increase it beyond your character level. Choosing an alternative animal companion lowers your effective druid level for determining the same stats. The "most beneficial order" rule is used to justify applying the level penalty before the natural bond bonus in order to get around the character level cap on natural bond.  Does this rule actually exist? If so, where does this rule originate? I would like to be able to cite a reliable source for my GM. Derivation of a generalization of Mertens' Third Theorem. One of Mertens' Theorems states $$\prod_{p\le x}(1-\frac{1}{p})\sim \frac{e^{-\gamma}}{\ln(x)}.$$ I have seen a generalized version that states  $$\prod_{m&lt;p\le x}(1-\frac{m}{p})\sim \frac{c(m)}{(\ln(x))^m},$$ where $m$ is a positive integer and $c(m)$ is a real number that depends on $m$. How can I derive this result? Is there a way to find what the values of $c(m)$ are? Thank you very much. How to debug suspend? Why am I getting a NoClassDefFoundError in Java? When considering the Doppler shift, the 'canonical equation' is  $$f=\frac{c+vr}{c+vs}f_0$$  However, this equation seems to run into trouble in the following situation: A light source inside water is moving at a speed $v$ towards a receiver outside the water. Can we modify the above equation to deal with a transition between two media? Or is there a completely different formula that applies here?