It is shown in Stargate that there is a limited number of chevrons in each gate. Since we need a chevron for the origin point at the end of each "dialup", it can not be more origin planets than chevrons (e.g. 39).  Since there are obviously more than 39 planets shown on the TV show, how could the series be so long? How could it last long enough long to even Atlantis and Universe?  EDIT: Note: this is not a duplicate of  because there an estimation of the number of stargates is requested, and here the question is about how could that number be so high when you need Point of Origin chevrons and there are not so many different PoO chevrons available.
121858
I'm trying to figure out how many planets have stargates in the Stargate universe, preferably separated by galaxy. I've recently thought about just how many stars there are in the galaxy, and roughly what fraction of them would have a stargate, just to run through some numbers.  Bonus points if you compare the number of stargates to the number of stars in the galaxy, distance between stargates, etc.
44342
In Star Trek: Voyager, episode 23 of season 4 (), the episode begins with a civilization unknown until now. They claim to hold the ruins of the USS Voyager, which has otherwise contributed to the history of this civilization in a negative way, whereby Captain Janeway formed an alliance with the enemies of the people in question.  In the historical reconstructions of this event, we see many parts belonging to the ship, such as the Doctor.  This one -- having been deactivated during all these years -- still seems to be several centuries ago. The Doctor is therefore considered as the last "living" witnesses of this war.  The USS Voyager was considered a heavily armed warship with a restless and violent crew. The Doctor has done everything to set the truth about that time, and finally, all ends well, history is approved.  However, what is really going on? In the other episodes, the Doctor is always present, as well as the crew members, and the USS Voyager. At the end of the series, they all return to Earth.  What about this episode that seems to be out of the scope of the story?    I couldn't find any explanation about this episode, except that we could consider it as a separate story, but it doesn't really make sense to put an episode that has nothing to do with it in the middle of the series (even if it's very good and fits in pretty well).  I don't think this question is a duplication of , because this one is about the whole episode, as well as what really happened to the crew.
55213
Obviously, when gambling with Ferengi or other aliens, the stakes are usually latinum. But on the Enterprise (or in Federation space in general), are they still playing for latinum, or are they betting chores (as seen in Firefly) or maybe holodeck time or replicator credits? I did a quick check on , but it's not really spelled out what the poker players on the Enterprise-D are betting. I'm fairly sure they're not just playing for fun.  I'm asking about Star Trek in general, not just the poker games we see on TNG.
65394
In Interstellar, after young Murph places the watch on the bookshelf in her bedroom, her father - in the same bedroom but from another dimension - moved the second hand and recorded data in a Morse-signal message on it. Many years later, the second hand still signals the message, grown-up Murph finds the watch and takes it with her to NASA and there she translates the message back into the data needed.  If we assume the watch had a long lasting battery, then I still see some problems with this plot:   From what we know from the explanation in the movie itself is that the only thing capable to travel from them in the 4th or 5th dimension to present Earth is gravity. Gravity is a vertical force on Earth. It pulled dust from the air to the floor in a barcode-like pattern. So how can it adjust the horizontal position of the second hand of the watch? Like a magnet? And how is a multiple of those movements of the second hand recorded on the watch? How does it play the message for all these years, again and again. Not only in Murph's bedroom, but still at NASA too?   Normally I would answer this myself by saying that it is film, it is science fiction, everything is possible, and there is no need to question things we cannot explain. But this movie certainly has the intention of being truthful to science, to explain what is going on and this particular director has a reputation of telling stories that in one way or another always has plausible explanations for plot-hole-like aspects.
92981
In the original timeline, I haven't seen a federation starship other than USS Voyager on the surface of a planet, whether it was capable of landing or not.  In Star Trek Into Darkness,      it was displayed that Enterprise was kept underwater on a planet.   My Question:      What was the point of bringing Enterprise to the surface, which enabled a couple of chances for violation of the Prime Directive? Why couldn't observations be done with Enterprise in orbit?
44741
How does Picard, or anyone for that matter, decide at what warp speed to travel?  Obviously there are times when they need to get somewhere in a hurry and he says, warp 9 or maximum warp, but the rest of the time he just seems to pick a number at random. He rolls a warp 6.5 Is there some guide as to recommended speeds that he's following? Is there a speed that is the most efficient?
34177
There is a small difference between intro texts in TOS:     Space: the final frontier. These are the voyages of the starship Enterprise. Its five-year mission: to explore strange new worlds, to seek out new life and new civilizations, to boldly go where no man has gone before.   and in TNG:     Space: the final frontier. These are the voyages of the starship Enterprise. Its continuing mission: to explore strange new worlds, to seek out new life and new civilizations, to boldly go where no one has gone before.   (emphasis mine)  It's pretty obvious that no man was changed to no one to include women. But, is there any explanation why was five-year changed to continuing? Also, why was it a five-year mission at all?  My only assumptions are:   Gene Roddenberry hoped to get funding to run the show for 5 seasons. Gene Roddenberry just made up a number without any special meaning. Gene Roddenberry was a .   Is there any official explanation, in universe or not?
95517
At the start of the movie it says:      "A long time ago in a galaxy far, far away...."   Does this mean that the entire Star Wars saga takes place in a single galaxy? To my understanding a galaxy isn't very big compared to the universe itself. Star Wars has many different sentient races, and the way they are presented suggests that most planets are host to only one of them (some exceptions like naboo). This strongly leads me to believe there should actually be more galaxies in the Star Wars universe (hehe).   Another thing, I think it's safe to assume that even if the entire saga takes place in one single galaxy, their researchers can observe other galaxies (I think we started doing that in the 1600s, and they are a lot more technologically advanced than we were back then). When Obi-wan is looking for Kamino (the rain planet with the cloners) the librarian says something like "If it's not in our records, it doesn't exist", so she must be convinced that the entire universe has been explored.    If the entire universe has been documented, why wouldn't they go to those other galaxies? The technology seems to be advanced enough to hop to another galaxy. Is there any canon material that suggest that traveling between galaxies is done? If not, is there a canon explanation why they don't?
118842
It seems there may be a bit of a retro-continuity error in one of my personal favorite Star Trek scenes, which I noticed just today.    Click the picture above for a YouTube video.  A transcript of the pertinent bits is below, emphasis added.     SCOTTY: The Enterprise!  Show me the bridge of the Enterprise, you chattering piece of...        COMPUTER: There have been five Federation ships with that name.  Please specify by registry number.        SCOTTY: N, C, C, one, seven, oh, one.  No bloody A, B, C, or D.   The computer is specifically stating that there have been (only) five Federation ships named Enterprise.  Scotty effectively names all of the ones we'd been introduced to by the time of that episode:  NCC-1701, NCC-1701-A, NCC-1701-B, NCC-1701-C, and NCC-1701-D.  However, this of course omits the NX-01.  Out-of-universe, this can easily be attributed to the history of the television series.  However, I'm wondering if there might also be a (possibly un-intended) in-universe explanation that allows the computer's statement to still be accurate?  For example, (and I only ask because I'm not too familiar with the Enterprise series just yet) does the NX-01 Enterprise actually pre-date the existence of the United Federation of Planets?
33115
On several Stargate Atlantis and late Stargate SG-1 episodes they spend a very long time on a jumper.   For example, in Atlantis 4x17 "Midway", at the end, Bill Lee, Kavanagh, McKay and Shepard are on a gateship for more than a day      after Midway is destroyed until the Daedalus picks them up in intergalactic space   But there's no apparently place for a head (toilet).  I'm familiar with Nobody Poops (not putting TVTropes link as a public service), but this is a little different because usually you can imagine it is somewhere but not seen.   In a jumper, there is literally no place for it.    Because of this unique case, and Stargate's propensity to break the fourth wall, I'm wondering if there's anything out there.   Any discussion by show personnel or any canon information?   And I'll even just take a tongue-in-cheek "Man's I gotta take a leak real bad" when someone returns to Atlantis.
47617
I seem to remember several dating systems mainly in the Star Wars Expanded Universe. Furthermore, I was wondering if periods of time such as seconds, days, or months represent the same amount of time as they do in the real world.  So these are the main points of this question:   Which are the different dating systems (if there is indeed more than one) in the Star Wars galaxy? How are they related in regard to time offsets and such? (e.g. One system's year 5000 is another's year 268) An explanatory timeline graphic - perhaps including some important events - would be especially appreciated! Do amounts of time in the dating system(s) such as minutes or hours represent the same amount as in the real world? If more than one system exists, do the amounts of time carry over between them? (e.g. 1 minute is the same amount of time in all systems.) If the times carry over (or there is, in fact, only one system), what planet are the units of time based on? Coruscant?   Sorry if it seems I have asked too much in one question - splitting this question up into multiple questions did not appear to be a good idea as much of its content is very related.  Thanks for your time!
36999
Star Trek is one of the few SF shows to have the distinction of running long enough to make some of their original situations outdated.  In the original Star Trek, the Eugenics wars took place between 1993-1996.  Star Trek: The Next Generation was produced from 1987 until 1994, so it was being produced during that time period and Star Trek: Voyager started production after that, so those shows were actually produced during and after the time when Earth was supposedly going through a terrible war.  The Eugenics Wars were not mentioned in The Next Generation or Deep Space Nine, and were never directly mentioned in Voyager.  However, The Next Generation started with Q putting humanity on trial in a courtroom modeled after trials that took place after World War III, which is in the 21st century.  In Voyage there are at least two episodes that deal with the late 1990s or early 21st century, a time that was after the Eugenics wars were supposed to happen.  In Future's End, the ship Voyager is in orbit around Earth in 1996 (current time for viewers when it was produced) and crew members spend time on Earth.  Everything looks as we'd expect for people living in 1996.  There's no trace of the Eugenics wars or any of the aftermath.  In the episode 11:59 we see Janeway's ancestor in the year 1999 and there's no trace of any recent wars.  While this was necessary, since Trek had been around so long, at that time, that it had outdated itself, it does create problems in terms of internal continuity.  I realize that the Voyager producers were more concerned about not confusing newer viewers than about maintaining continuity with a show that aired 20 years before then, but there are repeated references to Kirk later in the series that do keep some continuity between the shows.  Was there ever any on-screen or canon reference to this?  Was the timing of the Eugenics wars moved forward to fit a new timetable?  Were they just combined with World War III, sometime in the 21st century?  Were retconned dates for the Eugenics wars ever given to go with a revised timeline?  If this was never addressed in canon, did any of the novels or games provide any explanation for the discontinuity between the 1990s as the time for the Eugenics Wars and the fact that we're still here, without such wars, in the 21st century?  Please understand: I know what the Eugenics Wars were and about them.  What I'm focusing on, with this question, is what was done within the studio or the writer's meetings to handle the retconning when our world caught up to the time of the Eugenics Wars and Voyager was airing episodes of their characters visiting our non-wartorn planet instead of one decimated by those wars.  Or did the writers in Voyager even realize that was an issue?
15037
I'm going to assume enough time has passed that the following is not considered a spoiler:  In the second-to-last episode of Stargate Atlantis, we see an alternate universe where Sheppard is a detective.  In the middle of the episode, McKay questions Sheppard as part of an investigation. McKay then says, "You know, I once met another version of you. He was very different."  What exactly is he referring to? As far as I remember, Rodney McKay said he knew his Sheppard when he traveled between universes, so it can't be this one. Which is it?
57419
I may just not remember this, but doesn't the Stargate horizon destroy everything in its way when the gate is activated? How then, can the Stargate's Iris stay in tact?
56048
As we learned in the responses to the question  ,  the Federation (and Earth in particular) enjoys a post-scarcity economy.  As part of this, humans living inside the borders of the Federation do not earn or use money.  Picard makes this quite clear in his speech to Lily in First Contact, for example.  My question is about the fate in the Star Trek universe of human corporations, industrial conglomerates, and other profit-driven enterprises that once existed on Earth.  Is there any evidence that these enterprises still exist in some way, shape, or form in the 22nd, 23rd, and 24th centuries?  If not, when and why did they disappear?  If they do exist, then do they "employ" individuals on a merit-based platform without paying them (much in the way that Starfleet does with its officers and enlisted personnel)?  One might guess that the Third World War in the 21st Century "reset" the economic playing field of Earth and perhaps put corporations into retirement.  In Star Trek (2009), however, we see a pristine Nokia phone / communicator in Jim Kirk's stepfather's car (although one might argue that the device may be from an earlier time but still functions, like the car itself).
109171
I called someone on the other side of the world. Where I was, it was 9:00pm.  Where they were, it was 11:00am the next day.   This got me thinking about Star Trek. Frequently in Voyager, Tom Paris is late to his "Oh nine hundred" shift on the bridge.   In the Star Trek universe, How does the Federation determine how to set their clocks?  Do they set the ship's clocks by San Fransisco time regardless of the local time in that part of the galaxy?  Do they adjust the time to that of the local capital planet of the solar system they're in?  I'm hoping someone with an official writers guide can shed some light into this.
105051
Obviously, there are some points (e.g. $\pi$, $30^\circ$) but I am unsure if there are more. How can it be proved that there are no more points, or, if there are, what those points will be?  EDIT: I largely meant to ask what is supposed in the first comment. Put another way, are there numbers such that $\sin x$ and $\arcsin x$ are both rational?