I am an Indian travelling from India to Cayman Islands via Dubai and US.  I have a valid Cayman islands work permit. I have a layover in Newyork / Miami for around 5 hrs maximum. Should I need a transit visa to transit US or if I have a dubai visa, is it enough to transit US and reach Cayman islands?  if so what is the best alternative option to reach cayman islands without taking a US visa?
In Europe usually you don't need to go through immigration to change planes (unless you are entering/exiting Schengen). Is it the case in the US as well? May I catch a connecting flight on one of the US airports if I don't have US visa?
Converting Older United States Dollar Bills How can I change Blender's theme? I just downloaded blender and its very bright. I want it darker. How can I change the color of it? Can a ultracentrifuge be used to test general relativity? With today's ultracentrifuge technology, they can spin so fast that the sample can be subjected to  accelerations of up to 2 millions Gs. That is equivalent to two solar masses. Has someone tried to measure the time dilation in a radioactive sample? How calculate that time dilation respect to the time outside the ultracentrifuge, for example one week. I think that that time dilation will be significant enough to be measured. The main doubt one can have about mirrorless is, I think that they do not provide ttl viewfinder. Is this a big disadvantage? In what way is it worst (or best) than classical reflex system?  What are the others advantages and disadvantages of a mirrorless compared to a reflex?  Have mirrorless a chance to replace reflex (at least for non pros) in the future? Is there a way to programmatically change the screen resolution or enable/disable multiple monitors in Windows XP?  For example to change from 1024x768 with one monitor to 1280x104 on two monitors?  I would be most interested in a win32 function to do this but anything that can be tied to a windows shortcut would suffice. I have been denied a visa several times in a row. How does one deal with such serial refusals? Over the course of time here on TSE, I have observed individuals whose pattern of visa applications is best described as ''...     serial refusals - Two or more consecutive visa refusals issued by the same regime to the same person. Commonly for the same, or nearly the same, reasons. In some visa regimes Serial refusals can have a cumulative effect wherein the applicant's credibility is increasingly eroded, especially when the application pattern suggests a secondary agenda.   A common thread appears to be the need to visit the destination country (especially Schengen, the USA, or the UK) with a special sense of urgency. Also common in these cases are the following types of questions...   Should I just reapply once again? What are my chances? What can I do to improve my odds in the future? Can I somehow address the previous refusals to avoid them being a burden on all future applications? How can I break the pattern?      NB: This question is intended as a canonical about serial refusals. I have never been personally denied a visa. Are global variables bad? "Switching" axes in 3d tikzpicture Overview  So say I want an arc between the x and z axis in the same way the following creates an arc between the x and y axis (MVCE):  \documentclass[border=5mm]{standalone} \usepackage{tikz} \begin{document}   \begin{tikzpicture}     \tikzset{       x={(0:1cm)},y={(50:0.7cm)},z={(90:1cm)}     }     \draw[-&gt;] (0,0,0) --++ (1,0,0) node[right]{$x$};     \draw[-&gt;] (0,0,0) --++ (0,1,0) node[right]{$y$};     \draw[-&gt;] (0,0,0) --++ (0,0,1) node[right]{$z$};     \draw (0,0,0) ++(0:.3) arc (0:90:.3);   \end{tikzpicture} \end{document}     One solution to this exact problem is to do scope and tell arc that the y-axis is the z-axis.      \begin{scope}       \tikzset{y=(90:1cm)}       \draw (0,0,0) ++(0:.3) arc (0:90:.3);     \end{scope}   The problem  However, I need this more generic since I don't necessarily know how the y-axis is defined, so I'm looking for a way to do, essentially this:      \begin{scope}       \switchYZAxes       \draw (0,0,0) ++(0:.3) arc (0:90:.3);     \end{scope}   or      \begin{scope}       \tikzset{y=\theZAxis}       \draw (0,0,0) ++(0:.3) arc (0:90:.3);     \end{scope}   The latter is problematic because it seems like I can't send polar coordinates to the \tikszet via a macro (which is the background for  question).  Any ideas? Thanks :) Shapefile layer no longer editable (toggle edit option greyed out) in QGIS Remove completed reminders in OS X and iOS strptime() equivalent on Windows? Is there a good equivalent implementation of strptime() available for Windows?  Unfortunately, this POSIX function does not appear to be available.   - summary: it converts a text string such as "MM-DD-YYYY HH:MM:SS" into a tm struct, the opposite of strftime(). I know $4p^4+1$ can't be square number, cause $4p^4&lt;4p^4+1&lt;4p^4+4p^2+1$ for all natural number p. But I don't know the way to prove $3p^4-3p^2+1$ can(not) be square number. Is there a well known way to prove it? What blueprints become available during story? As I progress, I realize that some blueprints open up throughout the story and don't have to be researched. Are these random or are they always the same and is there a list over those? Seems you can easily waste research point if you don't know that. Should I get Enlightened badge? Today I've got 10 upvotes for an answer. Answer was a first answer in the question. I got an Nice Answer badge for this, but no Enlightened badge.  Shouldn't I get both?  is my answer :) Find number of files with a specific extension, in all subdirectories Is there a way to find the number of files of a specific type without having to loop through all results inn a Directory.GetFiles() or similar method? I am looking for something like this:  int ComponentCount = MagicFindFileCount(@"c:\windows\system32", "*.dll");   I know that I can make a recursive function to call Directory.GetFiles , but it would be much cleaner if I could do this without all the iterating.  EDIT: If it is not possible to do this without recursing and iterating yourself, what would be the best way to do it? Sum of the series:$\frac{1}{1\cdot 2}+\frac{1\cdot3}{1\cdot2\cdot3\cdot4}+\cdots$ I have a question where i couldn't find any clue. The question is  $$\frac{1}{1\cdot 2}+\frac{1\cdot3}{1\cdot2\cdot3\cdot4}+\frac{1\cdot3\cdot5}{1\cdot2\cdot3\cdot4\cdot5\cdot6}+\cdots$$  I could get the general term as $t_n=\frac{1\cdot3\cdot5\cdot7\cdots(2n-1)}{1\cdot2\cdot3\cdot4\cdot5\cdot6\cdots2n}$  I have also tried it to form the sequence in the telescopic form.But couldn't get. Any hint will be appreciated. Unexpected output of xargs The statement below should print afc abc but it prints abc abc instead. I tried many times but every time same result Don't know why this happens could anyone explain and help me?  echo abc|xargs -i{} echo $(echo {}|sed 's/b/f/g') {} Are {/bin, /lib, /sbin} symlinks into /usr in Ubuntu? I do not have access to an Ubuntu system or chroot. I was hoping if someone could tell me if the  is accurate in saying:     For Quantal, merged /usr should be supported. On new systems installer should create {/bin, /lib, /sbin} symlinks into /usr. Calculating the area of an irregular polygon Given the length of the sides of an irregular polygon (no coordinates provided) how do you compute the area of the maximum area of the polygon?   Thanks in advance Badge overflow on users with too many badges When a user has &quot;too much&quot; reputation and &quot;too many&quot; badges, the design of the user card breaks:    The badge counters overflowing to another line. Can anything be done about this? For example, expanding the rep and badges to their own lines:  NameRepBadges