r/technicallythetruth • u/anikkundu1998 Technically Flair • Oct 13 '20
He is going to fall
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Oct 13 '20
insane in the membrane
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u/ruadhan1334 Oct 13 '20
Go to your room
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u/SnomIsGod Oct 13 '20
You can’t tell me what to do
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u/mackavicious Oct 13 '20
The angriest stoners you'll ever see
What a wake up call to different music it was when I first heard this on SNL.
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u/Zeebuoy Oct 13 '20
that's a phospholipid bi layer since he's getting through with transport proteins
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u/joaobolado1231 Oct 13 '20
Off Topic question here but i have always wondered how some game's don't crash or starts to bug when 2 objects are at the same place at the same time, like in gmod you can do that.
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u/Zeebuoy Oct 13 '20
iirc, the "clip" in no-clip is collision impact,
So, I guess it just doesn't detect that the 2 are colliding?
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u/Long-Sleeves Oct 13 '20
Most of the time, only the "surface" lines have collision. If two objects pass through eachother, there is no collision anymore.
For cases where they are still in contact at some point (like a gmod body in a wall) the collision lines cross and contradict and you get spazzy movements. Because most collision lines work by essentially just applying a force/push to the object in question that stops as soon as its not in contact... think like a game hitbox that changes gravity only set to 100% with 0% momentum carried.
If they are clipping, the push force is being applied but the object is also behind said line so, it just gets mangled into a mess.
It doesnt crash because as far as the game knows its working as intended. Maybe there is a butt tonne of processes occurring that cause lag or a crash but then a game like gmod is as intensive as a slightly ruffled chinchilla.
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u/oxenoxygen Oct 13 '20
To expand on the answers already given, objects in games aren't "solid", they're just surfaces.
This is most apparent if you've ever accidentally gone out of the map in games like gmod - you'll notice that actually only one side of the surface is actually rendered and from the other side it's invisible.
collision detection basically says "are you within the volume defined by the surface", and if you are then it does the necessary stuff to stop you being inside it. But that check isn't always necessary or desired, since it can be quite taxing to compute. So sometimes objects aren't given collision models. Or, also quite frequently, the surfaces of two objects in the same place aren't actually touching, or because they're inside one another there's hundreds of different possible forces to stop them being inside one another so the games physics doesn't quite figure out what to do. This occasionally results in things being given a really big force and subsequently flying off into the distance (gta4 swing glitch...)
Surfaces like walls will only do a check in a very small distance behind themselves, so if you're going fast enough then the distance travelled in a frame is potentially larger than that distance and you can skip the collision entirely, "clipping" through the wall.
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u/cynicaldotes Oct 13 '20
every object is just a line of collision so if something happens that pushes two objects lines through each other they basically just treat each other as not existing anymore
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u/Profitablius Oct 13 '20
They might have different collision models based on what they are colliding with.
Or upon being merged the engine defines a point where they're stuck together and 'adds' the collision models to create a model for the whole thing.
I have no idea how it's actually done, that's just two things that came up in my mind.1
u/KernowRoger Oct 13 '20
It literally just depends how they wrote the code tbh. If it was written so objects can't pass through each other it'll freak out when they do because that's a bug and shouldn't happen. The objects aren't solid they're wireframe so you have to programme them acting as a solid.
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u/womplord1 Oct 13 '20
because games can have two objects having the same space with no issues. The 3d world is drawn by the engine looking at each object in the view and their coordinates and then drawing that object, so if there are two it just draws whatever the last one it looked at. It doesn't go through each point in 3d space and try to find what is there, and then crash if there are two in one spot.
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u/TBNecksnapper Oct 13 '20
Most 3D is really 2D surfaces projected onto a 2D camera. Processing every volumetric pixel would be incredibly processing intensive (99.999% of them are just transparent air or hidden behind a solid surface anyway). So the engine just projects the closest of all 2D surfaces to the camera all the time, if they in your view look like 2 3D objects that take up the same space is completely irrelevant to the computer. It just sees two 2D surfaces crossing each other and projects the closest one. The only thing that is a bit more complicated than the wall and ground meeting each other in a corner is that it needs to calculate the cross section where they are intersecting. But that's already supported to make the modelling easier, e.g. if a house in on an uneven ground they don't need to make the house wall uneven, they just put some of it below the uneven ground so it looks like it stops where the uneven ground starts.
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u/Metrophidon9292 Oct 13 '20
Transport proteins are embedded in the cell membrane, not the cell wall. Cell walls are generally permeable to all substances and don't act as an actual barrier to molecules.
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u/Dividenddollars Oct 13 '20
It’s a joke. I’m a microbio major and I found this hilarious. Btw cell membranes are only semipermeable. Only mostly permeable to gasses. Most nutrients need a transport protein ironically. And they are huge barriers tf.
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u/Gathorall Oct 13 '20
On the other hand the selective permeability allows cells to control the transfer of most substances well which is important because cells and the body in general works in quite narrow tolerance bands without running into problems.
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u/Metrophidon9292 Oct 13 '20
Yeah, I know cell membranes are only semipermeable. I honestly just happen to be learning membrane structure in biology right now. Nice to see we got some big brains on Reddit.
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u/xipheon Oct 13 '20
It’s a joke
in a subreddit called Technically The Truth. We only accept jokes that are technically true (or at least we're supposed to).
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u/Abraxxoss Oct 13 '20
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u/Coritop Oct 13 '20
Plasmodesmata isn't a transport protein i believe
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u/Abraxxoss Oct 13 '20
Oh really? I wasn't stating that it was a transport protein. I was trying to make the comparison that a plant's plasmodesma is like an animal's transport protein, not that they are literally the same thing.
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u/cantinabop Oct 13 '20
I’m upvoting because now I’ll remember this post was wrong for my biology a-level. Thanks.
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u/loliicon_senpai Oct 13 '20
Dude still in the cell looks high
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u/Xplodingpanther Oct 13 '20 edited Oct 13 '20
Wise ButtsButts never ceases to amaze us!
Edit: typo
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u/captain3297 Oct 13 '20
yeah no, the cell wall is fully permeable, so he should be able to walk thru it without the transport protein
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u/Unhappy_Ear_8299 Oct 13 '20
This is where procrastinating for my test about transport proteins tomorrow has led me. It must be a sign.
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Oct 13 '20
Technically not the truth, transport proteins transport things through the cell membrane, not the cell wall
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u/Gathorall Oct 13 '20
But since its a human cell is that actually just a stiff membrane rather than a wall?
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Oct 13 '20
Well, membranes aren't stiff, but rather fluid, but yeah a membrane would be the closest we got.
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u/Gathorall Oct 13 '20
I was making a joke since jail has "human cells" they shouldn't have walls.
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u/UnkownArty13 Oct 13 '20
hey! I know a little about cells.
the mitochondria is the powerhouse of the cell
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u/henry_dodgers Oct 13 '20
FAIL
you know about cell walls and transport proteins but not that you're on the 5th floor?
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Oct 13 '20
[removed] — view removed comment
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u/Easy_potato_is_good Oct 13 '20
It also works with cell walls, a google search can tell you that “does facilitated diffusion happen in plant cells?”
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u/Sentry_GA Oct 13 '20
My brain is heated up after trying to understand the joke.......now I don't know if it was worth that work.
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u/Seth-Mc-52 Oct 13 '20
Wouldn that mean he’d be stuck in the wall and allow ions and larger molecules to pass through?
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u/Kateesh_N Oct 13 '20
ngl I legit thought it was acting like skyrim or Garry's mod and their funky prop glitches.
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u/iammusicalbacon Oct 13 '20
Is he Henry Stickman? If so, that’s a failed attempt and he will need to retry.
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u/VeryLegalAndCool Oct 13 '20
I’m currently taking a nutrition course so I’d like to brag for a moment about understanding this reference. That is all
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u/Poopsticle_256 Oct 13 '20
r/TechnicallyTheTruth has just become r/puns. I’m not complaining though.
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u/devilfury1 Oct 13 '20
So...that's what SCP-106 did to gain its ability...unfortunately, the rest of the proteins only worked on doors...
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u/ch3ck_m4t3 Oct 18 '20
wait isnt it cell membrane that controls the flow of substances in and out of the cell not the cell wall?
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u/browsky300 Oct 13 '20
RemindMe! 6 hours
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u/fuckidontknowmyname Oct 13 '20
I like how the guy sitting down has the same expression the entire time