Other reason for sliders doors.... They are stronger. Hinch/looks are the normal weak points. Slider doors that are in walls/tracks do not have this weakness. And they do not take more space. A door swinging open blocks hallways etc. A not all walls a structural walls. So now waste of space for a empty wall to have a door in it. Take ds9 cog doors. You want a open to space hinch door? Take subs.. Why do they have round doors?

You forgot about the energy field door like in the hanger bays of Star Wars ships

will you guys ever do anything on gundam

The biggest problem is structural integrity. A door opening out or in, will not have the same durability unless the door is excessively over sized. Such as the door at NORAD or a bank. Then you are talking about even more space, volume, and weight. By sliding to the sides you can build a structure around the actual door for support. As for an iris I thought that would be obvious, but I guess not. An iris has the benefit of more durability with less volume. Well, try and work the rest of yourself. Next time share what the pros say...

Yes. I wonder how the door knows that. Or why nobody has the idea to just make a button "plot close" instead.

Could be based on the purpose of the door. Like some type of doors would be made to open when power is cut so they don't trap people, while others are made to close so they can contain fires, Hull breaches, etc.

Ask Luke Skywalker how well shooting the door controls works

@@davect01 well sens the other side had working controls it was kinda perdictable. at least in stargate they had to move the control and weld it into place with the zat in order to put cause the mechanism to not function due to an already present comand signal.

@@battlesheep2552 like how all jail cell doors/shields instantly disappear when you shoot the controls! That is absolutely what should happen! ;)

That's a very good point! - hoojiwana from Spacedock

also it is more difficult to breach (invaders or air pressure difference) if they are sliding doors. if swinging door(s) were used, should the locks malfunctioned, the invaders or air pressure just need to push/pull the door to open it, which in turn the crew/defenders would need to use/waste considerable strength and effort to keep the door shut. (also hinges are a weakness if exposed) But for sliding door(s), the invaders had to pry the doors open (other than hacking the lock or breaching via explosives), in which the crew/defenders don't need to waste their strength holding the doors shut.

A small pressure difference will make hinged doors impossible to open.

@@schwarzerritter5724 or easier (dangerously) depending on which way the door opens.

@@mojojojo6535 or from getting sucked out into space. Ship: all crew members, escape. crew member A: why? Ship: you don't have a choice. Door lock malfunctioned. Door opened. crew member A: (clinging on to something from getting sucked into space) I HAVEN'T PUT ON A SPACESUIT YET!! AND WHAT MORON DESIGNED THE SHIP'S DOOR TO BE A SWINGING DOOR THAT OPENS OUTWARDS!! SOMEONE CLOSE THE DAMN THING!!!

I've wondered about that myself and came up with excuses, like maybe you have to be facing the door as well to open.

@@andjoa1975 But then why doesn't it close when you're not looking at it?

Maybe they have brain wifi implant that they use to send the signal for the door to open when they need it?

Nah, it's just Amazon Alexa listening to the conversation and waiting until the person in front of the door finishes their sentence before opening the door.

Spock falls back on the door he had just entered - why didn't the door open? In the Animated Series, we were shown electric eyes near the floor that sense a leg and open the door. It was so close to the door, though, that it should have been common to run into the door before it opens.

100%. Always upgrade doors.

And when you pair them with a clone bay... *Medical Airlock.*

God FTL is such a cool game. Tactical depressurization is an underused response to being boarded

@@JRexRegis Well, that's because boarders usually have pressure suits

@@rommdan2716 just yeet them into space

Door weight is measure in cheese. Just as asteriods are measure in number of giraffe halfs.

This channel expands our mind!

I prefer measurements of speed to be in Smoots per Microfortnight. Yes, those are both real units of measure.

@@buster6027 the asteroid thing is just a misconception. you gota specify that they use the front half of a giraffe.

Where Banana for scale?

Cheese doors for all!

The expanse isn't even hard scifi. It didn't go lower tech near future designs because realism but for contrast by making the human ships grounded you drive home how far out the humans league the gate builders and the by extension the ones who casually slaughtered them are and make the alien tech and Laconians builder/human Hybrid ships look that much more impressive and threatening by comparison.

@@vonfaustien3957 I'll say nothing on the show itself - my comment wasn't a criticism on the show or how it handles its own sense of realism. Rather, I was pointing out that it's the spearhead of a trend that lots of shows are currently bending backwards to try and reach - or, rather, a large portion of the Science Fiction community are currently demanding that shows do - that I'm already kind of sick of.

If the opposite of realistic is fantastic, then there's a problem. At some point, certain groups of fans started using the term "science fantasy" as a pejorative or at least with the implication that it's not "real" science fiction. Then throw in the people who go for easy Internet points by criticizing the lack of realism in various science-fiction works and is it really that surprising that realism becomes the order of the day?

@Izzymandias I'm saying people had the wrong take away the lesson to learn from the expanse isn't near future better its observable differences in ship functionality sells tech disparity. The audience will buy a none FTl capable ship with no magic gravity or an FTL capable ship that relys on spinning habs or has no gravity as being lower tech underdogs when put up against something that has the things they lack a lot more than they will a star gate star trek shake the camera and yell off numbers as the ships slam weapons fire into each others magic sheilds style fight. Look at star gate on paper you have a suposed massive difference in tech between the races but functionally as far as what we see the ships do a goluld ship with its artificial gravity and city leveling energy weapons bearing down on earth is the same as an Ori ship with its magic gravity and city leveling energy weapons were told one has more impressive abilities but they do the same thing from a naritive standpoint. Contrast that with Halo where it's clear the human ships lack shields and are outclassed or Babylon 5 where the less advance races strap spinning habitats to longer mission war ships and we have a clear observable diffrence in tech as opossed to the cast yelling about whose stat block is larger and that's it.

As you can hear when they settle in their locks with a cozy pfffff.

I was a little disappointed when the video ended with no mention of the Heart of Gold's doors...

@@danieloberhofer9035 how depressing

So self satisfied....life....

Did that door just sigh?

But what if they swing out to the hall?

@foxboy747 There’s also the issue of doors sliding Against the intended direction of travel. Imagine you’re trying to evacuate into or out of a room connected to a hallway: Do you want a large crowd of ppl being “pseudo-locked-into” a dangerous area bc the doors can’t swing the way you want them to??

@@UGNAvalon That’s why sliding doors are generally superior. Except when they are stupid and the for some reason need to be made up of more than one piece. A solid chunk of metal has vastly superior structural integrity than multi-piece doors.

@@foxboy747, if they swing out to the hallway, passageway, corridor, then they are a personnel hazard for those traveling in that space.

On the other hand, when the door is closed, there is now a gap in the wall.

Imagine if they were smart enough to build such doors for cells keeping incredibly dangerous prisoners in.

Also, it's very very very hard to force open a properly engineered sliding door. For doors that rotate, the obvious weak point is always the hinge, and it necessarily needs to be exposed for the door to be usable. Sliding doors have no such weakness - the mechanism keeping the door closed (some sort of piston and a strip of strong magnets, presumably) can comfortably exist behind layers of armor plating, and if the door is airtight, no gap large enough to push a lever into exists.

@@compmanio36 Surely you jest. Guard close the door that can be banged open.

@@JRexRegis Yup and to show how secure a well designed sliding door is, just think of door locks most of them, especially for vaults, are sliding. A sliding door is a giant lock.

They have to host the crew who's job it is to open and shut the doors when needed.

It kinda makes sense to me, at least from a storytelling perspective, IMO. The fact they could invest that amount of resources and effort into doors of all things; ones that still work even after millennia, and whose added complexity grants no practical benefit; demonstrates quite clearly to the player how advanced and powerful the Rakatans actually were.

Well, that's Star Wars for you. Overwrought and underpractical in the extreme. Hey, let's put a bigass satellite dish on the roof of a starship capable of ballistic atmospheric entry! Brilliant! I'm replaying KOTOR 1 right now, actually, so I'll have to keep an eye open for the silly stone doors you speak of.

If you think about it, it's also perfectly in character for the Rakata as a decadent empire to create something so unnecessarily complex out of the most impractical of materials, purely for the aesthetic.

I see your Subnautica doors and raise by ladders in Minecraft. Those things work as airlocks. Make an 1 block wide opening in a wall with water on one side, put a ladder onto the wall in the opening and you can walk through but the water magically stays outside.

@@Bird_Dog00 I thought that didn't work any more because blocks can be waterlogged now?

@@thatspiderbyte Possible. i haven't played Minecraft in a while. It worked when I last played and water "physics" in this game have always been... unique.

@@thatspiderbyte They are only water logged if placed directly on a water source block (i.e. just use a bucket to pick up the water and you're good)

Also, a swinging door might open so violently with pressure differential that it could crush someone behind it.

You know who did missile exhausts right? _The Last Starfighter._ Exhaust gas in a wide fan as it expands into vacuum. Nothing like most sci-fi action scenes where their missiles leave distinct smoke trails.

Unless you're Samus Aran. Then shooting (unlocked) doors *always* opens them

Yeah, that's also where I would put my money. I am actually surprised there are no automatic weapons in the doors, so often as something dangerous comes through.

They are also present in shuttlebays and cargo bays as well, all of which have outer doors leading to vacuum or store hazardous materials, etc. They are clearly meant to represent reinforced doors meant to ensure that the rest of the ship isn't exposed to hazards, vacuum, etc.

@@steemlenn8797 aside from Klingons, who makes dangerous holodeck programs? You know the "safety protocols" will work 100 percent of the time if your programs only involve bunny rabbits and tribbles, but will inexplicably fail the moment you add anything capable of doing actual harm...like a rock. Yeah, bunnies have claws, but they rarely kill anybody...and when they do, the deceased usually deserves it.

@@MGower4465 Humans. Just look at the ancient west program, Dixon Hill program, or Sherlock program. Also I am sure the Klingons have programs involving tribbles. They are just a lot bloodier than the ones of other races.

@@MGower4465 Don't forget a simple bacterial cold from a skiing simulation!

Better than an outward opening door... aircraft cargo doors!!!

Yeah and preferably one that needs a human there to physically open it as a safeguard, at least if I'm on the Enterprise where the computers get taken over by an alien virus at least 4 times per season.

underrated series. always thought the doors were a really cool design feature on Moya. even the shuttle bay doors were visually interesting.

Those doors on Moya come complete with light fixtures and little DRD catflaps. They've thought of everything!

@@hansakkerman2611 Absolutely. The Creators of Farscape never cease to amaze me.

that would inply said damage broke the hinges and the lock mecanism, which inconsequence means the door itself is not a problem, current blast resistant doors swing, they are still part of modern conbat vessels, they are more resistant and rely less on auxiliary stuff (hidraulics, power)

@@nahuelleandroarroyo yes but combat vessel's don't have brats running around not closing door's 😂

The exploding console makers wouldn't like that. They'd have to redesign with more shrapnel to keep up.

@@nahuelleandroarroyo Modern warships don't have the added issue of having to hold in an atmosphere of pressure. If the locking mechanism on a sliding door fails, nothing will happen. If the locking mechanism on a swinging door fails, the door blasts open.

@@cynderfan2233 If the locking mechanism of a sliding door fails, you now have a guillotine!

Planet Express breakdown

Love the iris on the stargate, though

Interestingly tho the ISS uses iris doors for the airlock because they’re the most space-efficient, volumetrically. Anywhere where you have extra space they don’t make as much sense though

@@kaitlyn__L I can imagine that round doors make more sense in a zero gravity environment. But as soon as you have a floor, keeping that floor uninterrupted is a good idea. Therefor, at least the bottom side of the door will be flat.

@@kaitlyn__L Iris doors on the ISS airlock door? The doors on the ISS airlock are round but none of them are an iris. The airlock doors have hinges.

You write sci fi:0?

I think ( and to be fair, i might be misremembering here) but one of the episodes of TNG showed the handle is to the side of the door, and you pump it to force the door open.

Because there's no drama in that

@@hughsmith7504 yeah sometimes there’s a pull handle behind the control panel, and sometimes there’s a stick-on handle in the emergency-kit area of the wall always just within reach, and sometimes both because the writer makes the first one fail for dramatic tension

Opening a stuck door works best if you and the others forcing the door engage in the Mak'tar battle chant.

Also, as the door doesn't slide against the mating surfaces, it is easier to install a long-lasting air seal. Imagine how often you would have to replace the door seal on your refrigerator is the door just slid sideways. Now, if the door in question pulled out of the doorway a bit, then slid sideways on rails, you'd get the best of both methods.

@@MonkeyJedi99 One thought I had on this for a single peice sliding door, is you have seals on the face of the door just inside the door frame. The seals are not specifically in-contact with the inside of the door frame but the door does have sufficient movement that a pressure differential would cause the door to be pressed against the frame and thus pressing the seal against the frame making the needed air-tight seals without needing to have the seal constantly rubbing against the frame under normal conditions.

@@Krahazik That's a good idea. Thanks for sharing, it will help with that aspect in an upcoming TTRPG I'm running.

Apparently the gigantic massive door was a mistake. For some reason it was imported 5 times the size it was meant to be. The play testers loved it and the developers were like "Ok, it stays:

Looks like my crippling debt to the spaceship academy is paying for itself already! Hahaha *intense sobbing*

Pain in the ass if it has to double as a docking port and you can never cleanly pass straight through.

@@SamnissArandeen A docking port doesn't need an airlock. At no point does it need to be pressurized or depressurized. If it's a docking port _that's also an airlock,_ you need to wait for it to be pressurized anyway, which is a fraction of the time involved in docking procedures, and those few extra seconds could be used for it to function as an air shower to minimize contamination risk.

@@notoriouswhitemoth I'm talking about a docking port that is also an airlock when undocked, but can function straight-through both doors open when docked. Mostly trying to save space on the exterior for more guns and armor!

@@SamnissArandeen That isn't what I'd had in mind, but again there are still ways to make that work - and docking starships isn't exactly a quick and easy procedure in the first place, because you have very large, very heavy, and often very fragile machinery in dangerous proximity in an extremely hostile (absence of) environment. Waiting no more than a minute for a revolving door to cycle is the least of its problems.

​@@notoriouswhitemoth But once you're docked, it's still like that. completing cargo transfers through that is way more of a pain.

But there's already a Spacedock video about that! - hoojiwana from Spacedock

@@hoojiwana I’ll take a look, I must have missed that one. Ahh found it, 3 yrs ago.

Babylon 5 had toilets for methane-breathers.

Off the top of my head, there are at least 5: Babylon 5, Battlestar Galactica, Cowboy Bebop, Firefly and The Expanse

@@thatstarwarsnerd6641 Add Lex the dark zone to that. They toilets are even used to recycle every äh waste product back into nutrition for the ship.

Startrek sparking innovations like that are why i became a fan and technical guy myself.

you got a source for the cardassian design? tried googling but no dice.

Love those B5 doors! In the event of a power failure, the centrifugal force of the rotating station, would swing those doors shut automatically. The actors were terrified of them, as the mechanism that kept them open on-stage broke down every so often.

@@ObeseMcDese The DS9 Technical Manual mentions it I think but I'm sure first saw it on the inset blurb for the VHS release a very long time ago.

@@stamfordly6463 it’s in the TM for sure but it’s also in the series bible they distributed to writers :)

Do you like my fashionframe? - hoojiwana from Spacedock

@@hoojiwana I really do. I love how royal you made Garuda look with her cape and coloration

@@sage_thunderleaf487 Thanks! Hopefully her prime parts drop quickly but knowing my luck they won't.

@@hoojiwana Such is our way in Warframe. I wish you luck on your future grind!

There's a pretty crazy one in New Vegas, in the Helios One building.

Door as secret antagonist - something right out of the Hitchhiker's Guide

A problem I see with sliding doors is that the wall they are sliding into need to be hollow thus are a structural weakness.

@@CathrineMacNiel Or, y'know, you could design for the necessary strength on one or both sides. That's how engineering works.

Love that channel!

My first school had long accordion doors make of wooden segments to separate the assembly hall from the canteen, and they could be combined into one larger space if necessary because of folding up on itself. It was pretty cool, had roller tracks in the floor and a brass turny thing in the middle of the track to clasp the halves closed. It looked annoying for the cleaners to brush the debris up into the large dustpan though, everything collected in those rails which also held the debris in from being easily brushed out. I wonder why they didn’t use a vacuum… maybe budgetary issues.

@@kaitlyn__L The 'why they didn't use a vacuum' was more likely the hassle of dragging it from wherever maintenance storage was for an item which was so rarely used, if the building even had one. My high school only got a vacuum cleaner some time after the new library addition was built with carpeting. But lack of foresight is typical in municipal committee-led decision making.

@@MonkeyJedi99 yeah I don’t think they even had one, I don’t remember one being used even though 90% of my school was carpeted. They already had the hassle of carting the rest around so I doubt if that was it. Though I do note American school decisions seem to be made by committee much more than British schools. (Well, at least when I was there - most English schools have converted to “Academies” run by “Academy Trusts” which do often have parents on the board so it might be all changed now. But when I went there the “school board” had like 3 or 4 people in it.)

If you're going for that level of detail, expanding (by gas injection?) air seals in the walls on both sides of the door or magnetic seals akin to, but strong that those on a refrigerator would be a good addition. Plus it gives you a regular maintenance item to keep lower ratings constantly busy checking and repairing them.

@@MonkeyJedi99 Sadly that's as far as I dared go. It's digging into the little details of stuff that may play into the story once that holds me back from actually writing it. lol I get lost in the details and just drift away on the tangent. Though that is an awesome idea!

@@AvengerBB1 When I ran a space-based tabletop game, one of the first cargos they were offered to run was airlock seals and adhesive to a remote science outpost. They ended up buying a case of the sealant and its solvent once they realized how handy it would be to glue defeated enemies to the decks and walls during a boarding action. One character would use a fallen enemy to point which direction he was clearing the ship by gluing their arm pointing that way.

@@MonkeyJedi99 God, that sounds like something my old D&D crew would do. The DM would throw us something simple that was just a small thing to kinda move the plot along and it would become some super-weapon or something. Like using large metal rivets in a sling instead of rocks. It was such a simple insignificant thing that became the path to victory! lol

Doom nanowalls was top notch sci-fi for me, and is badly underrated

Do they have the pilots to fly the vipers?

We'll save that one for a future video. - hoojiwana from Spacedock