Supergirl, Martian Manhunter, Flash and more should all be able to lift Superman's key.

Wouldn't 9000kg key still be quite safe. Such small edge inside stone would be really hard to move. Even with machines that can lift more than 9000kg. Also superman doing a guy thing with numbers makes sure noone really knows what they would need to move the key. What machine would you use to grab a tiny 9000kg key from stone and accurately manipulate it into keyhole.

Not to mention that if his key was that heavy and that small of an object, it would just fall in a key shaped hole once he sat it down

You know what? Go ahead and make a key that weighs 25 lbs and try to pick it up. I bet it would be crazy hard. First your fingernail would have to wedge under it and then you have to pick it up with only your nail in order to get your finger under it. Don’t think it would be hard? Go ahead and grab a 25 lb weight from the gym and pick it up with your fingernails

I think I have another way ..... Well it's quiet simple ... The key is kept under the doormat on the ground right? So why couldn't u use some clay to take the imprint of the key and make another spare key from normal metal?...... Hope you read this Kyle ....

Great episode Kyle. If (as Philip suggested) superman is trolling Lois and actually running an electromagnet on a steel key, we can do numbers on the magnet strength needed. Assuming your key is around 2mm thick, I take it the surface area was 4.5 cm2, or 0.00045 m2. The High Field Lab's 100 tesla magnet is powered by a 1200 megajoule generator, and that would produce around 1.79 million newtons on your key's area, or lift 182703 kg. That's big, but not big enough. Superman would need a 5275 tesla magnet to get the 4.9 billion newtons he's describing. A fridge magnet is 0.01 tesla. I did use an online calculator for this F = (D^2 × A) ÷ (8π × 10^-7), where D is the magnetic flux, and A is the area, but I'm still hoping I can get points for initiative.

@@Lucian_Andries No need to be so aggressive to @Brian Makepeace!

@@Lucian_Andries Actually, you're the stupid one. He knew he was replying under someone else's comment because he even referred to OP's comment and name. He just directed his comment to Kyle in the likely chance Kyle sees this comment thread since it is one of the top comments anyway. Think before you speak next time, bucko.

If it were a regular steel key being held down by a super magnet, wouldn't it deform or even break when Superman picked it up? He's not applying equal force across the entire surface of the key when lifting it, so there's going to be some intense torque between where he lifts the key and the much thinner part with all the delicate teeth for the tumbler. Then again this is a world where catching a falling plane actually stops it instead of punching a Superman-shaped hole through it. That being said, if it were a regular key, that means the lock would also have to be a normal lock, thus vulnerable to a modest lockpick... or if the person breaking in wants to overthink things, they could literally just take a photo of the key on the floor, send the image to someone with a CNC router, and mill out a duplicate key. The hyper-dense key's weight wouldn't be the only security feature, rather its density allows it to withstand the forces Superman would be applying to shove the key into the keyhole, to move the tumbler's super springs (which would otherwise flatten the teeth of a regular steel key), and the torque applied when twisting the key to turn the super lock.

@@blarghmcblarghson1903 If it were a regular steel key then wouldn't the sheer force being applied to it from the magnet be enough to basically disintegrate it as it's lying on the ground anyway? Since, as you said, the key doesn't have uniform mass across its entire body.

"postive click from 2..."

@@jove3403 click out of 4 3 is sill giving me trouble

First Name Last Name 5 is binding

Probably.

The lock pins maybe made of the same super dense material

Or, the earth's real thicc

Your name looks like someone you don't want attacking your base in clash of clans

Could probably get round that if it were placed into a contained field of the same gravity

Probably

Meh just pick the lock it easier then trying to pick up that key

Wouldn't said speck fall through the material of the key the instant it's not between Superman's fingers?

Its will have to be covered with kryptonion technology no any other soft material

Good point.

...

@@nephicus339 alien tech stuff

nice hammer, you got the key bro?

dont think thor could if he tried

You comment something like this every week and it just keeps killing doesn't it? -- kH

@@becausescience I don't know. Because you look like Thor. I like it.

"Range"

I think he made the entire door, lock, and key out of the same material.

or maybe it unlocks with some kind of a harmonic frequency mechanism, since its a crystal-ly place and stuff. Therefore needing the same exact material to craft another one.

Does it ever state what the door/lock is made from? If not and the key’s weigh is the only “safety feature”, then you could just go through the door. Or pick the lock. The key does not look that advanced I would think that would somewhat limit the “advancedness” of the lock.

The only way I could imagine that working if the springs behind the pins were insanely strong.

Great now all i can think of is "i wonder if the credit card trick would work?"

Or diamond

@@nosuchthing8 diamond isn't heavy dawg

It was made of UNOBTANIUM! 😂😂

It was made of impossitanium😂. Or nuclear pasta 10 billion ti- wait I mean it's 10B times stronger than steel and inside a neutron star so I guess it's gotta be heavy but it will stil explode because. BECAUSE SCIENCE.

Alec Smith having it and using it is two separate matters, most versions basically say Krypton was allowed to be destroyed either through ineptitude of some conspiracy. At the least, they had the means to escape.

Yeah keeping neutron matter the size of a key stable is not the same as keeping the core of your planet from slowly transmuting into Uranium then exploding as it reaches critical mass, exploding from some long acting result of a doomsday weapon they thought they had turned off in time, or keeping your star from going Supernova to cover only a few of the ways it bit the dust.

you cand of have to explain why they can do one and not the other! i mean, the key isn't just contained, whatever is holding it toghether is in the key; swuezed in along with the 500 000 000tones of material the key is made of!

@@ntigdona7487 It might just be some very unusual technology like something that locks degeneracy pressure in place or alters it in some other quantum way.

Hahahaha

SlavTurtle every key has different details on it. Can’t exactly copy it if it’s facing down

Sure you can. But the lock is probably just so heavy to turn, a key made from any other material would just break off.

I'm pretty sure a KZfaqr did that and it worked

I thought about that too!

@@superslimanoniem4712 i so hope you weren't talking about hes penis :)

Neutron star material encased in something else? That makes a lot of sense. The surrounding material keeps it manageable, the neutron star material makes it heavy.

Dont forget it would expand like crazy and I'm pretty sure gold is a soft metal.

@@justinray582 Fine, 4 micrometer-thick neutron star material surrounded in thing-squeezing handwavium.

@@justinray582 it would also sink into the ground

Its would be best to say that it is covered by kryptonion technology . Since gold is soft

I was thinking the same thing. It's like in that other cartoon where it is showing him holding up that machine pressing down on him 9000 trillion tons or something stupid I said in comments something like "That is one impressive durable floor"

Well, it seemed to have made an indentation in the floor...

@@katieell4084 Best option would be to make it weightless on Earth, and allow any person to try to move it from it's stationary position. Why weightless ? Because packing that kind of mass into such space requires Dwarf/Neutron Star levels of Gravity, and it would probably be bad, if a Neutron-star like object appear suddenly this close to Earth :D Because of ^that, a key that heavy would probably need a bubble of forcefield surrouding it (that also negates Gravity from both it's sides), so that compressed mass of the key couldn't "spill out", and it's internal gravity wouldn't affect Earth/Solar system in a bad way.

Darjaboo It’s the same animated movie All-Star Superman, and it was actually 200 quintillion tons on the Moon, which still doesn’t make sense because the Moon weighs 80 quintillion tons.

I didn't even think of that...

Yes.

Ehh he's to much of a boy scout to care I'd think. Batman on the other hand would probably beat the shit out if you

His robots would immediately swarm you

@@kal-eldritch also true lol

Heck yeah, I saw the LEGO Batman movie Superman throws awesome parties.

Tunneling in!!! Credit card lol This isn’t a shed he built with pallet wood.

Why even bother with picks. You have the key, even if you can't lift it, just measure it and make a copy.

@@duel2edge Key most-likely has scorched QR engravings on it that are scanned. Good luck replicating molecular/atomic precision of engravings that Superman’s heat vision is capable of. And even if you can replicate something beyond the limits of human science, good luck flipping the key to the other side to copy the rest of the engravings…

Tell me this magic material that holds TSAR BOMBA in a chamber the size of a key at this point it can never be physics just some writer not having a single inkling of reality.

andrew Infante or pick the lock

Not so simple with Flash. The fortress is made of crystal, so I would imagine that has one additional layer of security: since crystals can be made to vibrate, the fortress itself can. And if the fortress vibrates at the right frequency, any speedster trying to phase through would be shredded to bits.

@@ravenwraith1017 if the flash was really careful and vibrated at a certain frequency where he could go through, he could do it, the real problem would be if the crystals it was made of were really dense, they probably would be so its not easy to just break in, so the flash would have trouble vibrating through it cause the atoms are to close together to let his through, kinda like the block in season 5 of the flash.

They're tryna find the rarest pornos ever

@@Lloyd_lyle Wot

Yeah but even if that is the case, he physically cant have a key made of that material. It would explode if he removed it from the gravity well of the star.

So how does Superman pick a flower then? Or put his glasses on? Or close the door to the phone booth? If he can't figure out human levels of force needed to do things he'd not be able to do anything that he does in the comics. On top of that, no. If I asked you how much my dog weighed and handed him to you (chihuahua), you'd be able to guess within a 100% margin of error, right? It'd make no sense to think that such a tiny dog would weigh more than 20 lbs, especially considering he's only 10. Superman being that far off would be like you picking up my dog and saying it weighed roughly 250 tons. If Superman can't know the difference between 10 lbs and 250 tons, do you want him knocking on your door? God forbid he touches Lois. He might rip her in half.

@@BobBobson To be fair, I can press on keys gently, but I don't know how much force I am pressing on them with. I couldn't quantify that without practice. There's a difference between being able to distinguish between weights, and being able to regulate the force you apply to non-destructive levels. Of course, he'd likely be able to be more accurate since he'd have spent much time working on those skills to be able to pass as human more easily, so your point does still stand.

But the locking mechanism is still geared for a Super-Key to turn it. Your copy would just break.

Kiha Akui Which was not mentioned at all in the video, so the point still stands

Or Kryptonian tech so that the lock is so fine and intricate that any small imperfections from a counterfeit key wouldn't be able to work. But I'm just guessing since it wasn't explained much in the story

Or lock pick

Kiha Akui To support the key in the way you say, the lock as to be made out of the same material. To support the lock, the door also has to be out if similar material and so on and so on. Imagine the gravitational anomaly supermans fortress produces, if it actually were so. Also, Superman immediately dismisses non human intruders. There are being in the dc universe that are easily able to lift that key. Not to mention what Kyle said about the key being boombastic. The whole house would... On the other hand... ask Batman.

Yeah.. his "house" is an apartment lol

The fortress of solitude is superman's home the apartment is Clark Kent's home

This was my (second) thought exactly lol. Right after wondering how the key doesn't smash through the ice and wind up on the seabed.

@@xeroterragoth1866 Seabed? I was thinking centre of the Earth!

Hell, even if the lock couldn't be picked for some reason, the key could easily be copied. It's sitting right there for anyone to look at.

@@oriion1 that's exactly what I was thinking.

@@theguyyouhate20 Maintaining key security is important. Copying is child's play after all.

I think the guy with glasses is new

zee9000 must be the intern

and why does he sound like Kyle?

That's Clark Hill, Kyle's secret identity. :)

mspears33 Preposterous

Yea that's what I was thinking

@Over Opinionated Bogan alloy is not a light metal, alloy is a combination of metals that doesn't have a fixed density since an alloy can consist of all types of metals

// AsianPersuasian yes exactly

Julian was gonna say the same thing. Well, not as cleverly anyways.

I dunno, I tried Google but nothing showed up. Anywho, I'm gonna go rob a bank, excuse me. *puts on glasses*

Genius.

um they don't have to identify you to arrest you or shoot you. Better snort some kryptonite to be safe.

I think it's an intern or something. It was kinda weird to just bring in some random guy though.

@@bremensims6086 Looked into it, its this Clark Kent guy

And beef vindaloo, you smeghead ;)

What if it looks like a cat that is really a Midgard serpent. That is a few million pounds.

Or make it a vertical sliding door

Too*

I agree, to use a key that heavy you would need quite a large lock not to mention a spectacularly heavier door that only Superman could move. If you have such a door, why bother locking it ?

And yet it doesn't even sink down into the snow.

Thats exactly what i thought too.

I keep forgetting to look into it, but I think "relative mass" has something to do with it? There's a certain point where the dimensions and mass of something don't have more of an effect than something of similar dimensions with less mass, like having a 60lb kid jumping on a bed wouldn't do as much damage to the bed as a 30lb bowling ball droppd from the same height? With the weirdness of how water works, it may be even be diminished because the molecules expand as they get colder, so they can handle more as it gets colder over a wider area? Also, since the mass wouldn't necessarily sink in the snow when its momentum downward due to gravity is reduced enough to render it "at rest". I don't think I'm making sense - I'm super-tired and my thoughts are all jumble-y... :P

I'm glad that I'm not the only one who thought of this.

@@forrenz Yeah, IIRC, it's why craters stop being a certain depth after a certain point, no matter how big or fast the meteor that caused it was. The question then is if this principle applied to a very small but super dense material being left on a surface for extended periods of time.

Well said

"How does the omnitrix make Ben change forms?" Would be one hell of an episode XD

Seems spicy

Yeah would be fun

Sirdesqwee FN he could maybe talk about some alien biology but I’m not sure how much science is in the omnitrix itself

Cool, brings back memories

johnny gonzalez maybe speedsters can phase through it of or it can be broken, weather it's raw strength or fozen to ice

@@yikes313 and key prevents this in which way?

@@yikes313 he got you there

Geni0use One thats what I'm saying, it wont matter if a speedster can just phase through it or Lex making a phase machine or soemthing

I was thinking something similar. So, the key is super heavy. Is the lock and door made of something super heavy? Could i, perhaps, make a wax mould of one side of the key and use it to make a duplicate that is not so heavy? If the lock, door, and exteriors are not also somehow special having a stupidly heavy key is not a fool-proof plan.

Alloy is rather specific term. I think you meant dispersing the "neutron star material" inside molten steel and you have an "alloy" of sorts. I'll cover that in a second. But first let's think you just put a thin strip of it inside - just for weight, the rest of the key is not going to withstand both in tensile strength, as well as in gravitational forces. You'd have to disperse material, over Very Large KEY - the one at least like in the comic (that very big KEY, that makes superman look like Scrooge McDuck). Or like 100 times Larger. And specifically built to withstand stupid amount of forces (it would be that big, that if superman held it perpendicular to the surface it would snap - from the weight of steel alone), because if you try to pick it up, you'll pick only very tiny bit of that HEAVY KEY, because the rest is so heavy it would snap, from the forces of Gravity vs. you trying to pick it up - try picking up 500.000.000 kg of steel. You'd need approx. 5 GN of force to do that, and IDK if ANY material could withstand it. I could go like that for hours. The simplest answer is of course the real answer - You cannot take anything from neutron star without it snapping back into explosion of matter. But other assumptions make hilarious scenarios, my favorite - Obviously if he could withstand the pressure of gravitational pull of neutron star, he could hold part of it in his hand and keep on pressing, so it would remain the neutron star material (it makes me wonder from what is Superman built from? Since it definitely is not Protons and Neutrons in any configuration - he couldn't withstand the neutron star if he was made of normal matter no matter how tough). But if he picked, let's say amount of equivalent to small stone - so he could keep on pressing the material, it would be about 20 cm3. So if he got distracted for a second, while still keeping his fist closed and "safe", the gravitational pull, would make him punch himself in a face, with something of a mass of big island (or small continent). Not to mention, bringing it to earth, where upon being couple hundred feet from the ground he would get smacked by planet earth, or at least anything, that is not sticking very hard to it, like planes, houses, oceans, people, whales, People of Wales, and Earth itself, although it would not survive it, since being millimeters from Earth, it would start to pull earth apart (now that I think of it, maybe not - the mass of such an object would be probably around that the asteroid that wiped out the dinosaurs), even if not if it fell (and somehow didn't explode) it would impact the earth with such a force, that from tossing that to Supergirl - if she didn't catch it, would probably make enough debris and dust to bock the sun allover the world for couple of months. Also things like tides, and tidal forces etc. Maybe it was a stretch (I was trying to compare it to objects in the solar system, and this "neutron rock" came to only about 1x10^14 kg, so that's about 5 km radius moon - still something to be afraid of if dropped), but it was fun. Sorry for a long post, but Man - you gave me some crazy ideas ;) Thanks, and have a lovely afternoon.

Isn't the problem with it being an alloy that they require atomic bonds? In neutron star "material" there are no bonds, only gravity acting like a pressure-cooker. Additional sci-fi tech or explanations (such as the DC universe having 52 earths or additional fundamental forces) is the only way to make that specific key explicable.

@@mikelenz4000 Yes, that's why I also wrote it as an "alloy" of sorts. Since you would be making a "neutron stardust", drop it into small amount of let's say molten steel, then put it into the shape, and quickly quench it. It is the closest thing to an actual alloy, that would be possible "IF" you could make "neutron stardust" somehow not to explode.

@@jannegrey593 I didn't say the neutron star alloy had to be part steel.

@@mikelenz4000 infusing more neutrons into the atoms, or maybe trapping them between the chemical bonds.

literally would go off like a nuke haha

ripghotihook That key would mess up earths gravity quite bad

@@jorgerincon6874 There's not enough mass in it to noticeably change Earth's gravitational field at a macroscopic level, although there would be measurable local distortion. But it would sink right through the planet like the Earth were made of air, carving out a little key-sized hole as it oscillated back and forth. This would become superheated due to compression, and so it would leave a glowing hot trail of liquefied rock in its wake. Of course, we're assuming it doesn't instantly explode due to the loss of gravitational pressure required to maintain the degenerate state of its matter.

John Aldrich yeah I realized that I messed up right after o wrote that, I was going to delete it but then I couldn’t find my comment XD

I'm gravity training like DBZ (which would kill you) -- kH

@@becausescience Yamcha sure almost died when he tried Vegeta's settings. If he hadn't gotten to the button in time he'd have become a Yamcha crater again just like when in the Saiyajin Saga. Makes me think perhaps the Briefs should've had the deactivation button on the floor just in case.

aight calm down

Best crossover

For an Alien-God fight!

@@Danilego Wonder Woman is the God Killer, so...that would be a great battle too

Because he wanna set-up a surprise party (sorry my bad english)

TBH, the entire episode I was wondering if Thor could pick up the key. Probably doesn't matter, though, because he'd just hit the lock with his hammer.

Given the weight of the neutron star core key, there is no material that could house it that wouldn't be obliterated once the key was laid on the ground. Assuming, of course, we're using known materials. It's possible that a shell was crafted from some material from another planet Superman has encountered over the years.

@@davidmatthews2773 I know this is layering silly on silly, but hey what else is this channel for? Get the star core, use the science of Asgard to keep the gravity around the key core stable so it doesn't explode outward, suspend the core magnetically (not sure if that would play well with the magnet warping gravity of the star's density but...) maby something like talked about in the light saber episodes, and then, once you have your core stable and not interacting with anything, put a handle on it. Probably bigger than a house key at this point but also not unwieldy.

I had a similar idea to this but instead it deals with plating a white dwarf key with neutron star material. Kinda like how pennies are mostly zinc but plated in copper. My comment goes into more detail, check it out.

Based on Kyle's video about Magneto pulling the iron from someone's blood, the intensity of the magnetic field needed to suspend the core would likely kill the person trying to pick it up. As far as covering the neutron star core in white dwarf material, wouldn't the weight of the core compress the shell into neutron star densities once it was set down given that white dwarfs compress down into neutron stars?

ZOD NIGGA

That's exactly what I thought, but I think it would have to open just to Superman, not for any Kryptonian. I think it would work very much better than this impossible key.

Read New 52

A biometric scanner

Didn't really matter in the end, Kryptonians eventually did come to earth and took it over because unlike super man they were evil, and simply lifted the key to get inside. That scanner idea is terrible because most Kryptonians turn out to be bad guys at some point or brainwashed, even Superman has and Lex Lurthor has even been able to create clones of Super Man through getting his DNA so even if you specified in making the Scanner specifically look for only him, there is still a pretty big chance some one could break in. Though for a normal person you could just.... get a mold for the key and come back? Unless you need inhuman strength to turn the lock as well, that key doesn't really matter at all.

... or as a keychain. Two birds one stone or Mjolnir in this case.

Mjolnir isn´t the house key. Mjolnir is there when you´ve forgotten the house key. DING DONG! *crash*

"You are not worthy....to enter this domicile."

This is my own private domicile and I will not be harassed... bith

Every door is able to be opened by Mjolnir. Thor just needs to tap the door with it, the door will open.... explosively, but it'll be open!

Exactly. Even if Superman is dumb by Kryptonian standards, he is still one of the smartest, if not the most “book smart” being on that planet. He might lack Batman’s deduction skills and wisdom, but on a technical side he is THE smartest one.

Stop being American. .. Kilograms.......

9000lbs are not even half of 9000kg, in fact they're 4082.331kg... that's the difference you're making... it's the difference between a truck and a van...

Yes, but he's Superman, so he's supposed to be honorable and all that and not lie about things of this sort to the love of his life. Unless he really does do that sneaky brain surgery on unsuspecting people so that they can't recognize him...

Krypto is in there and he lets you run around doing whatever you want until you try to leave. Sups finds Krypto playing with your femur.

Was thinking the same the second I see the key... Also, as you have access to the key, you can copy it easily without having to pick it up, so it will even be easier than lockpicking

You're assuming the tumblers inside the otherwise-ordinary lock don't take ludicrous amounts of force to move them, and that they wouldn't be resistant enough to require insanely-dense material to even hold up under the kind of torque required to move them. That said, there are other entities on Earth with super strength, so... like... any of them could just go "don't care have super strength too" and pick the key up and use it.

Exactly what I thought too. There would be no material strong enough on earth to do that.

Yeah I think every nerd in here wanted generally to see if it was a possibility. But the answer is straight up no. If Clark Kent had knowledge of a dwarf star that we do not know of yet, or incidents of something that was created in between a dwarf star turning into a neutron star that became solid. The answer would simply be that we would not be able to pick it up..... Or at the very least, it would create a hole in the ground, or people would be able to copy the key and just enter

And then the Momentum of that key falling would cause it to fly out the other side of earth.

@@yeetypeety1877 😂😂

you don't even have to know how to pick locks. The original key is right there to make copies of.

Is it a normal key? Couldnt you just walk over pour some mold material on the key, make a copy and use that to open the door?

Thought the same thing but i assumed the the mass pervolume and strength of the key was necessary to turn the lock

​@@kuminanida333 but if the doorknob is the same as the key, wouldn't that destroy the door? back to square 1

It's called editing.

@@TiagoTiagoT 🤦‍♂️🤦‍♂️🤦‍♂️🤦‍♂️🤦‍♂️ no ...

@@Centttttt60 It's a bird? A Plane? Superman? No, that was the joke flying right past you.

@@TiagoTiagoT Maaaaaaaaan, for real? 🤣🤣🤣

Just feels good man -- kH

If Superman basically eats sunlight, does he poop rainbows?

Be careful not to hand it to anyone 😂😂

I believe you, but I can't find it anywhere. could you give the sauce?

Which is made from white dwarf star material

@Ken HarrisThor? That's marvel

Yeah it's dwarf star alloy, and its magical so it basically just ignores any science anyway

@Ken Harris 1: DC isn't Disney, and 2: Dwarf Star isn't a metal in Marvel, Mjolnir was made out of Uru metal, and was forged in a dying star by the giant dwarfs, they aren't DC.

Yes

If we run some numbers we can see how much that really is. First, you've written out 5 trillion kg, which is 5 billion metric tons. Superman states the key is half a million tons so that's "just" 500 million kg (500,000,000). As a percentage of the Earth's mass that's way, way, way.... way, way less than 1%. It's around 8.372404554588077695914266577361e-18 % of the Earth's mass. Even if the key were 5 billion (5,000,000,000) tons the exponent only goes down to -14 instead of -18, still a very very very small percentage of the Earth's mass. A spec of dust (weighing roughly 0.00000000753 kg) landing on a person weighing 84 kg (185 lbs) would have more of an impact on the person's motion/movement than Superman moving the key around, or even dropping it, on the Earth. Edit: corrected my math.

@@awg0681 thanks superman haha

@@awg0681 I'm superman9401, and I approve this message.

Half a million tons is equivalent "only" to the weight of 5 Nimitz class carriers, I doubt it would have any noticeable impact on the Earth.

But the locking mechanism is still geared for a Super-Key to turn it. Your copy would just break.

My idea

Or a Neutronic material core with a shell of White Dwarf star material? All you have to do to get a mass in between is to combine the heavier and lighter materials into one object, after all. Of course, such an object WOULD almost certainly fall through the ground, unless the ground under it was unnaturally hard. Which, if Superman can make keys out of star material, doesn't seem like much of a stretch.

@@lvht1948 well, the problem with having the white dwarf material exterior still exists that it only stays that dense due to external pressure

Huh, I had the exact same thought and comment, yet you made it before me, oops on my part for not checking the check moments enough

Similar thought...you conveyed it a bit more concise :)

I'm glad I read down into the comments. My thoughts exactly.

That's something I was thinking.

I was just gonna comment that.

It definitely would, check out the book “What If”, the author does the maths for a bullet made of neutron star stuff

@@11doublett Supposing the bullet would be shot by something. A gun would be much lighter than its ammos and would probably recoil without moving the bullet (if it doesn't just go right through the clip). Who is the author btw?

If the key has half a million tons of mass, then logically the door and the tumblers in the lock would have to have the mass and strength to withstand both the weight of the key and the force required to turn the key. So no you would not be able to pick the lock.

Well the door and lock have to be reinforced to keep the door & lock from collapsing as soon as someone puts the super heavy key into it. That key would kind of shred a normal lock with it's toughness even if superman didn't let go of it, I think.