I read a series of novels in the 1990s-2000s where a world was colonized from Earth by slower than light travel. Eventually, FTL travel was invented and the world changed dramatically (I remember there were camps where living conditions were poor). I seem to remember that there was sabotage of a ring that was being constructed that would have led to even more migration. I’ve been looking for the series for years. Can anyone point me in the right direction?
I read this story in the early 2000s, but it was a Chinese translation so the English version could be older.  The beginning is a bit like the Passengers movie: on a spaceship, a man woke up from stasis too early and found that he could not go back to sleep. So he has to spend his whole life on the spaceship, alone.  For some reason (technical or ethical), instead of waking other people up, he created a fantasy adventure story featuring a brave prince as a pastime. He did stories, and drawings all over the inside of the ship. Then he died, not knowing how people are going to respond to his work.
I'm totally new to Ubuntu/Linux, using Ubuntu Server at the moment. Just trying to  figure out something basic.   How can you tell where you are installing a program. For example I just installed Sphinx search engine by placing the tarball that I downloaded from their site to my:  /home/sphinx   directory. I created the sphinx directory to place that tarball in. Then I ran these commands:  tar xvzf sphinx-0.9.8.1.tar.gz cd sphinx-0.9.8.1/ ./configure --with-mysql-includes=/usr/include/mysql --with-mysql-libs=/usr/lib/mysql   and then these:  make sudo make install   Now I have a lot of files sitting in the directory where I ran these commands. Is this my Spynx installation or did it install somewhere else?  In windows if you run an installer (.exe file) anywhere the program will still install in your C:\Program Files directory. Does something similar apply to linux where all programs are installed in a central place, or can you install programs anywhere on the system.  Questions   I would prefer to keep all my installed programs in one place so what is the right place for this in terms of best practice. In other words what is the Linux equivalent of C:\Program Files? And how does one always install at this location, is it just a matter of placing the tarball and running the install commands from this location? What about if I use sudo apt-get to install a package. How can I point to this location to tell apt-get to always install there? Looking at the questions and answer to these two questions.  &amp;  and neither mentions the longevity of magic. I recall several instances of magic failing to last; the money that was spread at the  and the broken  on.  If I recall correctly when Voldemort died, the curses on several people were lifted.  I don't recall if any other spells fell apart with his death.  Is there any canon evidence on the the length of time a spell will live? Why do different wavelength get impeded more or less when in different materials? Moving with the same speed, but a longer physical distance would imply that the fields oscillate less times in the material, but I don't know why a difference in the number of oscillations would impede the wave- I don't even know why things slow down in general. Why some electromagnetic wave would slow down just because it's entering other electromagnetic fields... It would seem to me that the only factor would be time taken to physically move some electron or something in the direction of the fields... But that seems to simple of an explanation to me. I am having trouble with (a) and (b):  I evaluated (a) and I got that sun of the first three terms does not equal $\ln(5/8)$. I got that it is equal to $\ln(3/4) + \ln(2/3) + \ln(15/16)$ which is not equal to $\ln(5/8)$.  I am also having trouble with part (b). I cannot figure out how to calculate the math to cancel out the $(k+1)^2$ and turn it into $2(n  +1)$.  Any help would be amazing. Is it possible to change the linkage of Nether portals? I have 3 portals that link together, but I want to remove at least the middle one.  Edit for clarification:    The portals I created are 1, 4 and 5, the others were spawned by the game as the "other end". I want to remove the link between 5 and 4 and create a link between 5 and (the yet non-existent) 6.  The goal is to be able to travel to 5 in the route: 1, 2, 6, 5. I don't really need 3 and 4 now. After the death of Lord Voldemort, Harry was taken to the Dursleys and became known as "The Boy Who Lived".  We know that the Wizarding World found out  that Voldemort was dead and undoubtedly it was Dumbledore that advised people that Harry had somehow survived the attack and caused Voldemort's death. According to Snape (in HP:HBP) there were even persistent rumours that Harry was a powerful Dark Wizard in the making until he turned up at Hogwarts a decade later.  My question is : Where did the Wizarding World think Harry was for the intervening 10 years? I am trying to do SVD by hand:  m&lt;-matrix(c(1,0,1,2,1,1,1,0,0),byrow=TRUE,nrow=3)  U=eigen(m%*%t(m))$vector V=eigen(t(m)%*%m)$vector D=sqrt(diag(eigen(m%*%t(m))$values))  U1=svd(m)$u V1=svd(m)$v D1=diag(svd(m)$d)  U1%*%D1%*%t(V1) U%*%D%*%t(V)   But the last line does not return m back. Why? It seems to has something to do with signs of these eigenvectors... Or did I misunderstand the procedure? Suppose that there is a trigonometric equation of the form $a\sin x + b\cos x = c$, where $a,b,c$ are real and $0 &lt; x &lt; 2\pi$. An example equation would go the following: $\sqrt{3}\sin x + \cos x = 2$ where $0&lt;x&lt;2\pi$.  How do you solve this equation without using the method that moves $b\cos x$ to the right side and squaring left and right sides of the equation?  And how does solving $\sqrt{3}\sin x + \cos x = 2$ equal to solving $\sin (x+ \frac{\pi}{6}) = 1$ I am trying to convince my friend that the integral of $0$ is $C$, where $C$ is an arbitrary constant. He can't seem to grasp this concept. Can you guys help me out here? He keeps saying it is $0$. "NG NS" on ticket after airport security I went through security at the Sacramento Airport with a friend. He got something written on his boarding pass "NG NS". I didn't have that. We both went through the same metal detector, neither beeped nor had random checks. Flying to Edmonton through Seattle connection. Early for flight.  I have tried searching for "what is tsa ng ns" on Google but nothing useful came up. Any ideas? Debugging automatic properties How to use notify-send to notify users as root? #!/bin/bash export DISPLAY=:0 state=$(upower -i $(upower -e | grep BAT) | grep --color=never -E "state" ) stat=${state:25:32} batperct=$(upower -i $(upower -e | grep '/battery') | grep  -E "percentage:") bat=${batperct:24:26} intbat=$(echo $bat | cut -d'%' -f1) if [ "$intbat" -lt "15" -a "$stat" == "discharging" ]; then     notify-send 'battery low..! please plugin charger..... charge is only' "$intbat"     fi     The script runs fine when run as a normal user (bash script.sh). The desktop notification is displayed.  If I run it as root with sudo bash script.sh, the desktop notification is not displayed.  How can I use notify-send to notify users as root?  I am using Arch Linux. Do I need to change my ESTA address when visiting the US? I have an ESTA for my visit last Sept to NY and I know it is valid for 2years.  I am going to Las Vegas in May, do I have to update the address at which I will be staying? Gnome keyring daemon not starting up properly Why does Yoda speak the way he does? Is it adviseable to stack internal hard disk over each other (after removing them from the casing) Would it damage or cause any interference to the non-operational (whereby electricity or power is removed or disconnected from the hard disk and it will be store inside a cupboard or container either made of plastic or metal) hard disks (IDE, SATA)? Minipage: 2 tables side by side isn't working I have the following code to layout two tables side by side:  \begin{minipage}{0.3\textwidth} \begin{tabular}{c | c | c | c | c | c | c} F &amp; D &amp; E &amp; G &amp; P &amp; A &amp; L\\ \hline C &amp; H &amp; I &amp; I &amp; U &amp; G &amp; F\\ \hline G &amp; Z &amp; G &amp; A &amp; F &amp; Z &amp; U\\ \hline F &amp; R &amp; \textbf{H} &amp; \textbf{A} &amp; \textbf{U} &amp; \textbf{S} &amp; Z\\ \hline R &amp; P &amp; L &amp; I &amp; N &amp; F &amp; H\\ \hline L &amp; U &amp; G &amp; I &amp; A &amp; C &amp; T\\ \hline A &amp; B &amp; D &amp; N &amp; E &amp; R &amp; Z\\ \end{tabular}  \end{minipage}  \begin{minipage}{0.3\textwidth} \begin{tabular}{c | c | c | c | c | c | c} F &amp; D &amp; E &amp; G &amp; P &amp; A &amp; L\\ \hline C &amp; H &amp; I &amp; I &amp; U &amp; G &amp; F\\ \hline G &amp; Z &amp; G &amp; A &amp; F &amp; Z &amp; U\\ \hline F &amp; R &amp; \textbf{H} &amp; \textbf{A} &amp; \textbf{U} &amp; \textbf{S} &amp; Z\\ \hline R &amp; P &amp; L &amp; I &amp; N &amp; F &amp; H\\ \hline L &amp; U &amp; G &amp; I &amp; A &amp; C &amp; T\\ \hline A &amp; B &amp; D &amp; N &amp; E &amp; R &amp; Z\\ \end{tabular}  \end{minipage}   But it doesn't work. The tables are one below the other. What am I doing wrong? Person, Persons, People, Peoples Can you please clarify the relation and differences between these nouns?   For example, is it proper to use "persons" instead of "people"? Are they the same? As I believe that "people" is plural, how come there exists the plural of the plural (=peoples)? Does it have any usage? Can you transit through the Schengen Area without a visa when traveling on separate tickets? I am planning to travel from US to Albania, and when I search on flight ticket websites such that US as origin and Tirana (TIA) as destination, then it costs me $1050 cheapest. However, it costs me $850 when I buy two separate round-trips through Barcelona (US to Barcelona round-trip, Barcelona to Tirana round-trip). I just checked Barcelona, but there might be other transfer airports in Schengen area which costs me even less. I don't need a visa for Albania but I need a visa to go into a Schengen country, so my question is 3-fold:   How can I learn which Europe airports have the international transfer area, so that I don't need a Schengen visa to transfer through the airport? I guess the airlines would take care of that when you buy the tickets together (I already have such an experience multiple times), but given that I will buy them separately, I need to have that information beforehand. The two separate flights I am planning to buy are through different airlines, and in my experience, the airlines check whether the traveler has a visa for the destination country before they let you into the airplane. So, would it be easy to convince the US to Barcelona trip airline that Barcelona is not my final destination, but I have a separate flight from Barcelona to Albania? Are there any Europe airports that have "international baggage claim" areas which are before the passport checkpoint? I mean, if I buy separate flights, do I have any chance to check-in a baggage for the US to Barcelona trip? Remove HTML Tags from an NSString on the iPhone