Star Trek Voyager - B'Elanna ejects the warp core

Clip from star trek voyager "day of honor" Blanna ejects the warp core!

[@EduardoTVideos]

There is a particle leaking, the warp core is about to explode... yet that Vulcan sounded so calm. Forget that, he's a Vulcan.

[@stevenrivinius1484]

I think they were born stoned

[@Davelantor]

"Worst day of my life" ... wait till you see the core get stolen :D

[@123RADIOactive]

@@pavilionbugno. This is suppose to be Day of Honor (or at least according to the description). But the one where the warp core got stolen is Renaissance Man, the episode where the doctor was blackmailed into stealing it due to him & the Captain being captured by the species called The Overlooker and them threatening to kill the Captain if the Doctor didn’t do what was instructed.

[@wsconsn]

@@123RADIOactive the refugees do steal it when she and Tom are trying to recover it, that’s how they end up in EVA suits running out of shared oxygen.

[@KnightRaymund]

​@@123RADIOactive well in this episode it gets stolen too when they go to retrieve it

[@SR-iy4gg]

Wait till you see all your Klingon DNA taken out of you!

[@curruptedJimbo]

Wrst day fir belanna..meanwhile our man Stax gets a standing ovations and a cheer squad when he finally get to eject a core

[@builder396]

I like how everyone on the bridge is surprise when B'lana tells then that they dumped the core. Werent they at least monitoring the situation? Even if they werent, wouldnt such a big event be noticed?

[@JohnMichaelson]

+builder396 They were probably just amazed that it actually worked.

[@richardlahan7068]

Yep. Should have noticed it on the engineering bridge consoles.

[@leonkernan]

You’d think something like that would justify a bridge announcement from the computer

[@richardlahan7068]

@@leonkernan I don't know if the computer announces it or not but it should have shown up on both Janeway's and Chikotay's consoles as well as the engineering console on the bridge.

[@Yewon2001]

The chief engineer can't even eject the warp by herself. She has to have dual authorization from a commanding officer

[@mreboric2215]

"Can't order me I outrank you" No you don't. She is the chief engineer and forth in command just under Tuvok or the Doctor in a medical emergency. No fucking way the senior helmsman outranks her.

[@devilsluk]

They're both Lieutenant Junior Grades throughout the events of Voyager, but Tom is just a little ahead of her in seniority because he's been one for longer than her by a few days. Technically outranks her.

[@compmanio36]

My understanding of modern military rank structure is that time of promotion doesn't really matter as much as the area of responsibility. A LT that works in the mess, but technically has seniority by a week over the engineer, isn't going to be able to head down to the engine room and order the engineer to divert power to his mess.

[@skippy8696]

This isn't the only time Tom says this to her. In another episode, she argues they have the same rank but then Tom claims that he has 'seniority' -- I'm not sure if he was just joking but apparently he does.

[@FederationStarShip]

What he means is, she's a woman and he's a man.

[@dhinton1]

Actually, Tom does outrank B'Elanna. but Tom was only telling her this now to tell her that he's going to help her out whether she liked it or not.

[@lovipoekimo176]

I had such a crush on Vorik & Lt Ayala. I was always happy whenever they were around.

[@niceguy60]

See Geordi that's how you eject a warp core WHEN IT'S ABOUT TO BREACH. The only time Geordi ejected a warp core successfully was WHEN IT WAS PERFECTLY FINE.

[@twotailedavenger]

To be fair, he did it because there was a singularity bearing down on them that was attracted to it.

[@seantaggart7382]

@@twotailedavenger yeah Besides warp cores are fuel sources anyways As long as you keep moving you are fine for a few mins

[@seanwhitman8353]

To be fair to Geordi, the time he ejected the core when it was fine was when they were countering a subspace weapon. An anti matter explosion of that magnitude was the only thing that could stop it. And it worked

[@niceguy60]

@@seanwhitman8353 Yes I know why he ejected it on the Ent-E but still it was a perfectly fine core/fully functional core. How many freckin times did Geordi fail to eject a faulty core on the Ent-D. You will need a super computer to count that high.

[@seanwhitman8353]

@niceguy60 It's actually been counted. About ... 8-9 times across Next Gen. But still, you have better luck arming the self destruct sequence on that show than you do ejecting the warp core.

[@Star841]

I love how the Vulcan is so calm.

[@yes4motivation]

Well he is a vulcan

[@seantaggart7382]

Indeed That's their ability

[@EvilMariobot]

Vulcan's gonna Vulcan.

[@thetooginator153]

That was great cinematography! It would have been expensive to show the warp core being ejected from inside the ship, but the cut to outside the ship was very well done - and the audience is convinced the warp core has been ejected. It’s also cool that the Star Trek shows have reasonable limits to technology, so there are believable dangers. For example: all Trek fans understand that a warp core breach means the instant destruction of the ship. There have been a few deus ex machina exceptions, but not many. I also like how the computers in the Trek universe work reliably, intuitively, and fast. The computer understands the command to eject the warp core without a confirmation because it is aware of the emergency. I think children today will see AI like that in their lifetimes. Edit: A confirmation was given.

[@r0bw00d]

B'Elanna gave the computer her authorization code; that was the confirmation..

[@CaptCovfefe515]

AI like that exists. Amazon Alexa, Google Assistant, and Siri. Hell, you can even customize an Echo to respond to “Computer” instead of “Alexa.”

[@seantaggart7382]

Yeah I'd do that to my ships If Core is unstable there's no need for confirmation

[@seantaggart7382]

@@CaptCovfefe515 yeah

[@thetooginator153]

@@seantaggart7382 - Smart move! Better safe than sorry!

[@notbobby125]

This is one of only two times that the main ship was able to eject the warpcore in an emergency in the entire franchise (barring expanded universe works). The other time was in Star Trek (2009). However, this is the ONLY time it worked in an emergency directly related to the warp core going ape shit. So, Star fleet can design ships that go between the stars in a matter of hours, but cannot design a spring or a big catapult that can reliable work. Or Holodecks that doesn't kill anyone that steps into them. Or manual door overrides that work when the power is out.

[@you238]

Didn't they also do it in Insurrection (worst Picard film) to get away from the face people?

[@leonkernan]

you238 Yes, they did and no, Nemesis was worse.

[@ContinuumGamer1]

Leon Kernan Warp Core ejection system only works on wednesdays. Didn't you know that?

[@tombo1984]

you238 Insurrection is painfully underrated!

[@mdcraig62]

+Continuum Gamer "warp core ejection system is offline..."

[@Eyetrauma]

I dunno why but Seven’s body language when she nopes outta there always makes me laugh

[@lazm3518]

7 of 9? ...excuse me but Seven was looking like a 10.

[@Sarah_Kinz]

​@@lazm3518 Eleven of 10

[@strawberrydialectics]

i was fixed on vorik the whole time..

[@solisinvictus4238]

Vorik has got THE sexiest voice!!!

[@Robert.R.83]

Worst. Day. Ever. Go back and get that thing. Its expensive and its still under warranty

[@g00gleminus96]

Sorry, that warranty is only good in the Alpha Quadrant.

[@Thasc37]

As indicated in ENT 'Divergence', the sudden loss of a warp field will smear whatever was inside it across several million kilometres. Since this didn't happen here to either the warp core or Voyager, we have to assume that there are automated systems in place that safely throttle down and dissipate the warp field in the event of a warp core ejection, using the remaining plasma in the conduits to sustain the warp field. By the time the warp core hit the warp field boundary, they were sublight.

[@retro38]

the best scene in the entire episode! thanks for putting it up.

[@redixdoragon]

Just saw some clip of Discovery with ejecting the core. It did this shot where it followed the core through ejection. And it's sliding out of the ejection tube just banding against the walls. I had to come watch this and see how controlled this ejection was and yeah, it slid out very smoothly cause you don't want an antimatter reactor banging against the walls and getting stuck on the way out!

[@michael3597]

I've never seen discovery, but isn't it set pretty early in terms of starfleet? So it'd make sense that it was less controlled

[@redixdoragon]

@@michael3597 that argument could be made,yeah. Unfortunately this was AFTER it’s 32nd century refit :/

[@Bearmauls]

This really bothered me as well. If you can't eject the core without it banging around, not sure what you have counts as a safe ejection system :P

[@mustang6172]

"Welcome to the worst day of my life." Drama queen.

[@MyHandelsMessiah]

The one time the emergency system worked. The ONE TIME.

[@wolf99000]

God Jeri Ryan looked good in that outfit

[@makara4615]

*in any outfit.

[@wolf99000]

Well yea but this is my fav outfit I love the silver look of it and it was different from the rest of her outfits after which were all fabric she had trouble breathing in this so they changed to the others but still would have loved on like this in there

[@Trev0r98]

Everything looked good except her face, that is (although her outfit had no bearing on it).

[@cmbunltd1]

Yes good enough to eat'/!!!

[@PhillipLemmon]

Yes she did.... And in ANYTHING she wears!

[@saquist]

I like how the engines immediately come down and Voyager drops from warp.

[@seantaggart7382]

It's because the fuel source runs out and Basicly they lose power

[@nathanrobinson2130]

@@seantaggart7382 The core is not fuel. The core is a reactor which provides power, in this case plasma. The fuel is deuterium and antideuterium. The warp core is the only power source on the ship capable of providing enough power for a warp field. Voyager is still able to travel on impulse using its fusion reactors.

[@seantaggart7382]

@@nathanrobinson2130 Well that was what i did mean but oh well Sorry

[@dirdib69]

At least they addressed the whole transwarp question early on. Otherwise, everyone would have been like "why don't you just use Seven's knowledge to get the shop home". Of course, it's still kind of a fair question, but at least they tried to speak to it.

[@Tilim1st]

Funny thing nobody knows: The Voyager actually has a spare warp core.

[@TheEDFLegacy]

Yep! Imagine if they had to use it!

[@BeastBoom24]

In the episode they find the warp core and pick it back up. Though thats after Tom and Belanna have their shuttle blown up and they nearly die in the cold vacuum of space. So yeah I’d agree that it’s the worst day of her life.

[@seantaggart7382]

They didn't bring it however As long with Alot of other things

[@nathanrobinson2130]

It arrives on Tuesday.

[@chrismc410]

So do most Federation ships: in pieces and would either 1. Wait for a ship to tow you back to the nearest Starbase and assemble/install there, the ideal way. 2. Can be done in the field but would take way longer

[@crgkevin6542]

Wow, an emergency core ejection that actually WORKED when needed?! Never saw that on a Galaxy class. The ejection system always failed when needed on those...

[@Xylarxcode]

And you still haven't, because Voyager is not a galaxy class ship, it's an intrepid class.

[@lazm3518]

It may have been Be'lana at her worst, but it was also peak 7 of 9. 🔥

[@KelvinButler1]

People get the wrong idea about B'Elanna. She really is a sweetheart and vulnerable because she really wants to do a good job and does care a lot, that's why she is hard on people sometimes including very hard on herself. She is a little tough but underneath that is just a woman who struggles to be her best self like everyone else.

[@babylon218]

It might have something to do with the fact that the core was going to breach, which would constitute an Emergency. In Emergency Situations, the Chief Engineer probably has authorisation to eject the core, while in normal situations, it requires a Command-level authorisation.

[@patrickschulz2193]

Her delivery of the last line makes me wanna hug her :(

[@Wesmin]

Loved this episode, it was a good one.

[@scottwrezenski2356]

She did her duty to save the ship

[@NeonVisual]

Don't worry, according to the schematics they have a 2nd spare warpcore.

[@Howlrunner82]

No one on the Bridge seems to notice that the core is gone until she tells captain coffee...

[@studioworksplc]

i love that bit!

[@stevenkramer6217]

“You can’t order me, I outrank you.” 😂

[@iguanapete3809]

I love it when 7 of 9 say's "COMPLY"...

[@MaliciousRelax]

@Spectual1 Very good points. But one thing about the Remodulating Shields. Take a closer look after they fire on the BoP, they get shot again. Note the shield impact (or rather pierced). The shields weren't knocked down, you can see it during each scene you can see D being shot at. A plausible answer can come from what you said though. The shields may not have been knocked out, but maybe their ability to remodulate them was disabled. In the end though, we can only speculate :)

[@Renville80]

Hey, thanks for thinking of the deaf and making sure closed captions are available!

[@-M0LE]

Best show ever

[@loboling9188]

2:36 Seven has got the "Did I do that look?" haha because of 1:06

[@lordrataxes5192]

that guy was an underrated vulcan

[@lineriderrulz]

@fluidicmethod according to Memory Alpha, Voyager was only travelling at maximum impulse, which to the best of my knowledge isn't incredibly fast. You would expect, though, that by the 24th century starfleet would've developed more powerful sublight propulsion systems.

[@armymatt83]

i can only imagine the incident reports that would have to be written.

[@jakekiedaisch2279]

+Draknfyre just so you know the impulse engines don't run off of the warp core they run off of the impulse reactors which as you said use deuterium.

[@SilentBudgie]

Flying back to Federation space at impulse speed would take a long time.

[@tomjones1258]

Reminds me of Chernobyl, April 25 1986. Never do stupid experiments with your nuclear particle reactor.

[@Moose6340]

"3.6 tachyons. Not great, but not a disaster."

[@International_Cartoons]

This is probably the only scene in the entire franchise that was able to, and is able every time I watch it, to bring tears into my eyes. I can feel the emotion welling up in me. It's like the ship's heart is cut out or something, I'm not really sure what it is. Am I the only one?

[@NikkiWrightVGM]

I definitely cringe when I see 2:28 its almost gore-like in nature seeing the guts of the ship be ejected out. I wouldn't say its eye-watering emotional but its an uncomfortable sight >.> I'd compare it to scenes in other episodes/the movies where you see members of the crew get sucked out through hull breaches.... it has something to do with seeing just how large the ship is in scale with something else kinda.

[@djargus]

Probably a better sight than watching a flash and then being incinerated by an uncontrolled matter/anti-matter explosion, Nikki.

[@mirkwoodphotography2089]

FaszomTelivanGecivel: You are not the only one!

[@bingbongabinga2954]

It is a machine.

[@JH-su9vl]

You are the only one - tears wtf?

[@colinmorand129]

Boy, did i have to go an eject my core earlier, major relief

[@spikedpsycho2383]

let's see Warp 2 is 10x lightspeed, so they were at warp still for 4-5 seconds, meaning they're 12 million kilometers away. At impulse they can get the to the core even at 1/4 impulse in 10 minutes

[@Star841]

There a number of STNG episodes where they talk about ejecting the core and claiming the system is offline. A few times in Voyager as well.

[@ronnygk]

YES!!! U SAID IT ALL RIGHT THERE.

[@SuperGamefreak18]

actually in Enterprise the shuttlecraft dumped its warpcore a few moments before it breeched allowing the two officers stuck on the shuttle to survive

[@The_Curious_Cat]

*something happens inside a Starfleet ship. "I'm ejecting the warp core!"

[@abrieenloe3878]

I just realized that two of Tom and B'Elanna's best moments are both bookended by ejecting a warp core.

[@Trev0r98]

I just found out that Federation star ships (those capable of warp drive) typically have numerous warp cores in their inventories, at any given time.

[@giovannimassa8881]

Where and how do you store such a thing like that? isn't it multiple decks long?

[@mayabrainrott]

@@giovannimassa8881 maybe it's cut up into sections? and you re-construct it where the warp core is?

[@chrismc410]

@@mayabrainrott yes. That's how they do that. A spare core in pieces and either a Starbase or the engineering crew assembles and installs it. The former is the ideal way it's done

[@kargaroc386]

@@chrismc410 And how do you get to a starbase without a functioning warp drive?

[@chrismc410]

@@kargaroc386 pray it's within impulse range, another ship with a powerful enough warp and impulse drive to tow to the nearest Starbase, preferably one with a dry or spacedock. Multiple small ships ie: shuttles sharing the load and towing. Even Warp 1-2 is better than any sublight speed. If your ship has a spare core in pieces and dilithum to fuel it, all you need do is assemble, install, in business. Taking a page from Scotty's book and jury-rigging a warp core that can do at least Warp 2. Slow and can take months but better than years, decades or even centuries of sublight. Simply waiting works. Overdue long enough, Starfleet is bound to send someone looking for you a BOLO to the Klingons and other allies too. Bound to find something, even wreckage. In the event a spare core is in pieces and no Starbase, the engineering crew with Work Bees, Shuttles, Runabouts or combination of any/all of the above and zero G exo-atmospherical suits in three shifts and a week and a half, it can be done by the engineering crew. Special crewmembers like Janeway herself, Seven and Tuvok for Voyager, O'Brien, Rom, Nog, Jadzia Dax for DS9. Geordi, Data, the shut up's aside, Wesley(work would go a lot faster with him than without him) and maybe Scotty himself as he did survive to TNG and proved he still had it and possibly Barclay (his Voyager contributions aside) would help too. TOS, definitely need Scotty, goes without saying. Scotty with Spock's help, definitely will get it done

[@peterweee6518]

How many Warpcores do we have? Janeway: Just this one! 😂😂😂

[@TheCyberloki]

Actually the Intrepid-Class carries a Spare Warp Core on Board :D I think its smaller but i guess gives enough energy to replicate materials for a new big one or to maintain lesser Warp speeds.

[@billthompson5644]

I thought it was going to blow up like a 1970s Pinto.

[@cardinalbob1]

Pinto, smashing good car. 😁

[@Shadowshard73]

Most likely the computer disengaged the warp drive just before dumping the core. The field was in the process of collapsing and the ship was falling out of warp as the core was dumped. It's pretty much what happens every time a ship comes out of warp. Inertial dampers may have helped to hold the ship together as well.

[@barrettross3772]

But there was an episode where it did not drop out of warp before ejecting the warp core.

[@MrFour4F]

@RyJ Btw did you notice that the same energy ribbon was said to move at the speed of light - but when the Enterprise B approached it, and when it was approaching the planet it was traveling MUCH MUCH slower?

[@Salty_Balls]

goddamn 7 in that silver catsuit. whew, we should clone her and find a way to keep the clones at that age forever.

[@Dann0343]

Minimal redundancy in a long range exploration vessel. Excellent design Starfleet Corps of Engineers. Always blew my mind how an entire ship's propulsion is centralized into one core vs several smaller ones.

[@DJDekgit]

Voyager has a smaller backup core behind the main deflector. But yea, redundancy in hindsight but also, noone expected a ship to go to the delta quadrant so soon.

[@thomasschulz2167]

In Star Trek lore having multiple active Warp Cores feeding into one Warp Drive system poses too much of a technological problem, because all of the cores need to be operating at the same plasma frequency. It's relatively easy for a computer to adjust and fine tune a single Dilithium matrix cradle to produce a constant warp plasma frequency. Adding a second core or more increases the number of adjustments across all the cores and introduces the potential for destructive harmonics to develop in a system that is very sensitive to them. The only ship I'm aware of that has more than one active core is the Prometheus, a ship that was designed to be split in to three sections; each capable of sustained warp flight. Outside of that all "Deep Space" vessels built by Star Fleet have a "spare" Warp Core that is in pieces. It would take a bit of time but a ship that has lost it's main core, and survived, can with some difficulty replace it.

[@seantaggart7382]

They had a spare that was left at home

[@seantaggart7382]

@@thomasschulz2167 yeah just voyager wasn't finished when the caretaker said I WANT YOU

[@RealGracefulGoose]

​@@seantaggart7382 "It'll be here on Tuesday"

[@retro38]

according to a Voyager schematic/diagram there is a spare warp core just in case they lose one. but it was never shown during any of the episodes.

[@rkmugen]

Heh... Voyager had a healthy BM in the morning. The Alternate Enterprise (2009).....let's just say, it seems like it needed more fiber and water.

[@justinpontarelli4368]

LOL

[@gregory3155]

That escalated quickly

[@MartinCox-ny2rv]

From what I recall they did have a spare warp core on board or could create one

[@Renserin]

(Sighs) Since there was never an official technical manual published for Voyager, this is the only shot of the entire warp core we got.

[@MrBirdale]

because the warp core is travelling at the same speed? I dont know....

[@tnhl77]

@RandoRoller or the computer only lets you do it on your own in case of dire emergency

[@erikmek]

2 MB here we go

[@R33C3.]

Voyager took a big mechanical shit in space.

[@Christopher0184]

Well, considering that they are traveling at warp speeds, I would have thought that the sudden loss of the core and the equally sudden drop from warp would tear Voyager apart.

[@solarisone1082]

The drop from warp wouldn't be sudden. There would still be plasma in the nacelles for a few seconds after the flow is cut off.

[@TheCyberloki]

The Soccer section of the Galaxy has "Warp sustainers" Which enable the Ship to ride the Subspace bubble until its energy is gone. Maybe Ships have a similar thing installed to manage to ride away from the detonation point at declining warp speeds.

[@monkeyman767]

those things are HUGE

[@RGBmode]

Did she try turning it off and on again?

[@Christopher0184]

I've always wondered why dumping the core at warp speeds didn't rip the ship apart.

[@flashkraft]

We have dumped the warp core. How far are we from the core? It took a few seconds to drop out of warp so 2 light years. How long will it take to reach the core via impulse? 8 Years.

[@compmanio36]

Few seconds at warp 2? Let's say 5. That's 15,109,540 kilometers. Not even a light year, but a trip at impulse for sure.

[@Prestinoiam]

was there a warp core breech in that other one? maybe because of the emergency the computer allows her to do that. idk

[@DarkestVampire92]

They can replicate shuttles, which have warp cores in them, but they cant replicate a bigger one. Or use smaller warp cores as substitute.

[@raymondcanessa7208]

LT Sacks favorite thing to do..

[@Ken.-]

You can turn off the deflector at warp?

[@bgdrewsif]

me too!

[@aqdrobert]

Shaxs favorite tactic!

[@dastaylor]

The only time that the "ejection systems were NOT offline."

[@rappingdaddy]

Isn't that that same vulcan as on the STTNG episode "Lower Decks"?

[@farhill22]

Different character (this is Vorik, the one from Lower Decks was named Taurik), but is indeed the same actor, Alexander Enberg (son of TNG/VOY executive producer, Jeri Taylor. A coincidence, I'm sure.)

[@pjpless2]

It's stated somewhere that they are twins. They did get the same actor to play both characters, though. Good eye and memory. I realized the same thing when watching this episode. 🙂

[@Guidogregotti]

@@pjpless2It was Jeri Taylor who told this to explain why Vorik and Taurik were played by the same actor.

[@dervxerox]

@Spectual1 aaaaaaaaaaaah, that makes sense. Nice one.

[@Poop-nu1so]

She can eject my warp core any day

[@rob3034]

day of honor

[@DrHouse5311]

B'Elanna.

[@danhelll8768]

Then the error was in the episode, the main engineer is of course allowed to dump the core when necessary.

[@275drago]

When deplying to production on Friday😅

[@dfoot3100]

I'm here 2023

[@Aramanth]

So the Warp Core... is the actual _core_ of the ship? Color me stupid... never realized that was why it was called the warp _core!_ Good finally seeing it as a whole though... Thanks for posting!

[@biggityboggityboo8775]

I don't know why this was such a disaster for them. Voyager actually has TWO warpcores. They posses a secondary replacement located behind the main deflector. It isn't usually used, but it's there and ready to be installed.

[@mirkwoodphotography2089]

I always wondered if they simply didn’t have the budget for it.

[@Mr2at]

Now thats a big dump.

[@Dumb-Comment]

That's one long stick

[@JazmanGames]

doesnt someone come along and steal the core after that part? or am i thinking of a different episode?

[@armymatt83]

no, because once outside the warp field it's dragged back to normal speeds by gravity. the core it self doesn't produce the warpfield its the same thing we see when the warp field collapeses.

[@GeorgeThoughts]

I always thought that "Reversing the polarity" solved all problems? ;)

[@JV-pu8kx]

Something we should have seen in _Insurrection._

[@Rhyza13]

'I'll try decoupling the dilithium matrix.' 'No effect, try again.' I don't get this. What is he supposed to try again? He already unplugged the fuel source. What's he supposed to do, plug it back in and pull it out?

[@anSealgair]

Exodus Taris Like reseating RAM or the Ethernet plug in a laptop I guess. Once is not always enough

[@pjpless2]

I gotta admit, I love that you caught this and understood it.

[@compmanio36]

Dilithium is not the fuel source, it's the moderator, like control rods in a fission reactor. Which is stupid because it should cause the ship to blow up if it succeeds while the reaction is happening. No moderator = nothing keeping the antimatter from reacting with the walls of the core.

[@ageofgreen99]

Exodus, that works for my modem sometimes. Lol

[@richardlahan7068]

Treknobabble to amp up the drama.

[@jmullins8889]

apparently, the watch next says 'day of horror'

[@sunnybecky81]

I loved the othere vulcan Crew member. What was his name again ? Cant remember .

[@Onixstar]

His name is Vorik

[@stewartritchey7602]

Amazing how Seven can still function in a suit where she can't breathe and heels where she can't walk.